Publications List 2008 (2008.4.1-2009.3.31)
Journal Papers
- Mitsuru Takenaka, Kiyohito Morii, Masakazu Sugiyama, Yoshiaki Nakano, and Shinichi Takagi: �gDark current reduction of Ge photodetector by GeO2 surface passivation and gas-phase doping�h, OSA Optics Express, vol. 20, no. 8, pp. 8718-8725, April 9 (2012).
- Yunpeng Wang, Kentaroh Watanabe, Yu Wen, Masakazu Sugiyama, and Yoshiaki Nakano: �gStrain-balanced InGaAs/GaAsP superlattice solar cell with enhanced short-circuit current and a minimal drop in open-circuit voltage�h Applied Physics Express, vol. 5, no. 5, pp. 052301-1-3, May (2012).
[DOI: 10.1143/APEX.5.052301] - Takayuki Nakano, Tomonari Shioda, Naomi Enomoto, Eiji Abe, Masakazu Sugiyama, Yoshiaki Nakano, and Yukihiro Shimogaki: �gPrecise structure control of GaAs/InGaP hetero-interfaces using metal organic vapor phase epitaxy and its abruptness analyzed by STEM�h, Journal of Crystal Growth, vol. 347, no. 1, pp. 25-30, May 15 (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEffects of strain on the performance of InGaAs/GaAsP multiple-quantum-well solar cells correlated with in situ curvature monitoring�h, Applied Physics Express, vol. 5, no. 6, pp. 062301-1-3, May 30 (2012).
[DOI: 10.1143/APEX.5.062301] - Masafumi Yokoyama, Sanghyeon Kim, Rui Zhang, Noriyuki Taoka, Yuji Urabe, Tatsuro Maeda, Hideki Takagi, Tetsuji Yasuda, Hisashi Yamada, Osamu Ichikawa, Noboru Fukuhara, Masahiko Hata, Masakazu Sugiyama, Yoshiaki Nakano, Mitsuru Takenaka, and Shinichi Takagi: �gIII-V/Ge high mobility channel integration of InGaAs n-channel and Ge p-channel metal-oxide-semiconductor field-effect tansistors with self-aligned Ni-based metal source/drain using direct wafer bonding�h, Applied Physics Express, vol. 5, no. 7, pp. 076501-1-3, June 14, (2012).
[DOI: 10.1143/APEX.5.076501] - Yunpeng Wang, Yu Wen, Hassanet Sodabanlu, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gA superlattice solar cell with enhanced short-circuit current and minimized drop in open-circuit voltage�h, IEEE Journal of Photovoltaics, vol. 2, no. 3, pp. 387-392, July (2012).
[DOI: 10.1109/JPHOTOV.2012.2187044] - Masakazu Sugiyama, Yunpeng Wang, Kentaroh Watanabe, Takayuki Morioka, Yoshitaka Okada, and Yoshiaki Nakano: �gPhotocurrent generation by two-step photon absorption with quantum-well superlattice cell�h, IEEE Journal of Photovoltaics, vol. 2, no. 3, pp. 298-302, July (2012).
- Soe Soe Han, Somsak Panyakeow, Somchai Ratanathammaphan, Akio Higo, Wang Yunpeng, Momoko Deura, Masakasu Sugiyama, and Yoshiaki Nakano: �gThe effect of thin gap insertion layer on InP nanostructure grown by metal?organic vapour phase epitaxy�h, The Canadian Journal of Chemical Engineering, vol. 90, no. 4, pp. 915-918, August (2012).
[DOI: 10.1002/cjce.21648] - Yunpeng Wanga, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gManagement of highly-strained heterointerface in InGaAs/GaAsP strain-balanced superlattice for photovoltaic application�h, Journal of Crystal Growth, vol. 352, no. 1, pp. 194-198, August 1 (2012).
- haojun Ma, Yunpeng Wang, Hassanet Sodabanlu, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEffect of hetero-interfaces on in situ wafer curvature behavior in InGaAs/GaAsP strain-balanced MQWs�h, Journal of Crystal Growth, vol. 352, no. 1, pp. 245-248, August 1 (2012).
- Hiromasa Fujii, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gSuppressed lattice relaxation during InGaAs/GaAsP MQW growth with InGaAs and GaAs ultra-thin interlayer�fs�h, Journal of Crystal Growth, vol. 352, no. 1, pp. 239-244, August 1 (2012).
- Masakazu Sugiyama, Yoshiyuki Kondo, Mitsuru Takenaka, Shinichi Takagi, and Yoshiaki Nakano: �gUniformity improvement of selectively-grown InGaAs micro-discs on Si�h, Journal of Crystal Growth, vol. 352, no. 1, pp. 229-234, August 1 (2012).
- ’†–ì‹`�º, �™ŽR�³˜a, “n•ÓŒ’‘¾˜Y: �g�‚Œø—¦‘¾—z“d’r‚Æ‚»‚ÌŠJ”“®Œü�h, Œõ‹Z�pƒRƒ“ƒ^ƒNƒg, vol. 50, no. 10, pp. 4-13, 10ŒŽ15“ú (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gImpact of strain accumulation on InGaAs/GaAsP multiple-quantum-well solar cells: direct correlation between in situ strain measurement and cell performances�h, Japanese Journal of Applied Physics, vol. 51, 10ND16-1-4, October 22 (2012).
[DOI: 10.1143/JJAP.51.10ND16] - Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama and Yoshiaki Nakano: �gEffects of background Zn doping on the performance of InGaAs/GaAsP multiple quantum well solar cells grown by a planetary metal organic vapor phase epitaxy reactor�h, Japanese Journal of Applied Physics, vol. 51, 10ND15-1-4, October 22 (2012).
[DOI: 10.1143/JJAP.51.10ND15] - Hiromasa Fujii, Kentaroh Watanabe, Masakazu Sugiyama and Yoshiaki Nakano: �gEffect of quantum well on the efficiency of carrier collection in InGaAs/GaAsP multiple quantum well solar cells�h, Japanese Journal of Applied Physics, vol. 51, 10ND04-1-5, October 22 (2012).
[DOI: 10.1143/JJAP.51.10ND04] - Kentaroh Watanabe, Yugo Yamada, Minato Senou, Masakazu Sugiyama, and Yoshiaki Nakano: �gFabrication of Monolithic Integrated Series-Connected GaAs Photovoltaic Cells for Concentrator Applications�h, Japanese Journal of Applied Physics, vol. 51, 10ND18-1-4, October 22 (2012).
[DOI: 10.1143/JJAP.51.10ND18] - Shaojun Ma, Hassanet Sodabanlu, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gOptimization of gas-switching sequence for InGaAs/GaAsP superlattice structures using in situ wafer curvature monitoring�h, Japanese Journal of Applied Physics, vol. 51, 10ND09-1-3, October 22, (2012).
[DOI: 10.1143/JJAP.51.10ND09] - Myung-Joon Kwack, Takuo Tanemura, Akio Higo, and Yoshiaki Nakano: �gMonolithic InP strictly non-blocking 8�~8 switch for high-speed WDM optical interconnection�h, OSA Optics Express, vol. 20, no. 27, pp. 28734-28741, December 17 (2012).
- Yu Wen, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEffect of GaAs step layer thickness in InGaAs/GaAsP stepped quantum well solar cell�h, IEEE Journal of Photovoltaics, vol. 3, no. 1, pp. 289-294, January (2013).
- Masaru Zaitsu, Takuo Tanemura, Akio Higo, and Yoshiaki Nakano: �gExperimental demonstration of self-aligned InP/InGaAsP polarization converter for polarization multiplexed photonic integrated circuits�h, OSA Optics Express, vol. 21, no. 6, pp. 6910-6918, March 25 (2013).
- Mitsuru Takenaka, Masafumi Yokoyama, Masakazu Sugiyama, Yoshiaki Nakano, and Shinichi Takagi : �gInGaAsP grating couplers fabricated using complementary-metal?oxide? semiconductor-compatible III?V-on-insulator on Si, Applied Physics Express, vol. 6, no. 4, pp. 042501-1-3, March 26 (2013).
[DOI: 10.7567/APEX.6.042501]
International Conferences
- Masakazu Sugiyama, Yunpeng Wang, Hassanet Sodabanlu, Shaojun Ma, Hiromasa Fujii, Kentaroh Watanabe, and Yoshiaki Nakano: �gDefect management in III-V nanostructure solar cells for higher efficiency by strain control based on in situ monitoring of MOVPE�h, 2012 MRS Spring Meeting & Exhibit, G11.1, San Francisco, California, U.S.A. April 13 (2012).
- Atsuhiko Fukuyama, Yosuke Nakano, Taketo Aihara, Hiroaki Fujii, Masakazu Sugiyama, Yoshiaki Nakano, and Tetsuo Ikari: �gNon-radiative carrier recombination mechanism in the InGaAs/GaAsP strain-balanced quantum well solar cells with different number of stacks by using a piezoelectric photothermal method�h, 8th International Conference on Concentrating photovoltaic systems (CPV-8), P29, Toledo, Spain, April 16, (2012). (AIP Conference Proceedings, vol. 1477, issue 1, pp. 185-188, October 2012).
- Kentaroh Watanabe, Yunpeng Wang, Hassanet Sodabanlu, Shaojun Ma, Boram Kim, Masakazu Sugiyama, and Yoshiaki Nakano: �gOpen-circuit-voltage enhancement of the III-V super-lattice solar cells under optical concentration", 8th International Conference on Concentrating photovoltaic systems (CPV-8), 8-6, Toledo, Spain, April 18, (2012). (AIP Conference Proceedings, vol. 1477, issue 1, pp. 40-43, October 2012).
- Yasuyuki Fukushima, Takayuki Nakano, Yoshiaki Nakano, and Yukihiro Shimogaki: �gControl of In surface segregation and inter-diffusion in GaAs on InGaP grown by metal-organic vapor phase epitaxy�h, Japanese Journal of Applied Physics, vol. 51, no. 5, pp. 055601-1-5, May 2 (2012).
- Takuo Tanemura, Pierre Wahl, Shanhui Fan, and David A.B. Miller: �gOptical transmission through arbitrarily located subwavelength apertures on metal films�h, Technical Digest, Conference on Lasers and Electro-Optics (CLEO 2012), QTh1F.5, San Jose, California, U.S.A., May 10 (2012).
- Kazehiko Anazawa, Sodabanlu Hassanet, Katsushi Fujii, Yoshiaki Nakano, and Masakazu Sugiyama: �gGrowth of strain-compensated InGaN/AlN MQWs on GaN by MOVPE�h, The 16th International Conference on Metal Organic Vapor Phase Epitaxy (IC-MOVPE XVI), MoA3-5, pp. 1-2, Busan, Korea, May 21 (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gCorrelation between in situ wafer's curvature and the performance of InGaAs/GaAsP multiple quantum wells solar cells�h, The 16th International Conference on Metal Organic Vapor Phase Epitaxy (IC-MOVPE XVI), TuP-101, pp. 1-2, Busan, Korea, May 22 (2012).
- Kentaroh Watanabe, Hassanet Sodabanlu, Shaojun Ma, Masakazu Sugiyama, and Yoshiaki Nakano: �gIn-situ curvature monitoring of the MOVPE grown InGaAs/GaAs compressive strained multiple quantum wells solar cells�h, The 16th International Conference on Metal Organic Vapor Phase Epitaxy (IC-MOVPE XVI), TuP-105, pp. 1-2, Busan, Korea, May 22 (2012).
- Linghan Li, Akio Higo, Eiji Higurashi, Masakazu Sugiyama, and Yoshiaki Nakano: �gSOI platform and III-V integrated active photonic device by direct bonding for data communication�h, 2012 3rd IEEE International Workshop on Low Temperature Bonding for 3D Integration (LTB-3D), p. 87, Tokyo, Japan, May 22 (2012).
- ShaoJun Ma, Hassanet Sodabanlu, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gOptimization of interfacial management using in situ wafer�fs curvature monitoring method�h, The 16th International Conference on Metal Organic Vapor Phase Epitaxy (IC-MOVPE XVI), WeP-94, pp. 1-2, Busan, Korea, May 23 (2012).
- Hiromasa Fujii, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakono: �gDoping-compensation for efficient carrier transport in InGaAs / GaAsP multiple quantum well solar cells�h, The 16th International Conference on Metal Organic Vapor Phase Epitaxy (IC-MOVPE XVI), WeA3-3, pp. 1-2, Busan, Korea, May 23 (2012).
- Akio Higo, Ling-Han Li, Eiji Higurashi, Masakazu Sugiyama, and Yoshiaki Nakano: �gInGaAsP/InP MQW FP laser and silicon platform integration by direct bonding�h, Technical Digest USB, 10th International Conferences on Optical Internet (COIN 2012), TuD.2, pp. 24-25, Yokohama, Japan, May 29 (2012).
- Kentaroh Watanabe, Boram Kim, Hassanet Sodabanlu, Masanao Goto, Keisuke Nakayama, Shinya Hayashi, Masakazu Sugiyama, Kenjiro Miyano, and Yoshiaki Nakano: �gLight-trapping structure with backside scatterer for enhanced photo-absorption by quantum structures�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), D23, 41, pp. 113-117, Austin, Texas, June 4 (2012).
- Hiromasa Fujii, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gHigh-aspect-ratio structures for efficient light absorption and carrier transport in InGaAs/GaAsP multiple quantum well solar cells�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), 406, Austin, Texas, June 5 (2012).
- Yu Wen, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEffect of GaAs step layer thickness in InGaAs/GaAsP stepped quantum well solar cell�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), 409, Austin, Texas, June 5 (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gCarrier sweep-out time in InGaAs/GaAsP multiple quantum well solar cells by time-resolved photoluminescence: effects of well depth and barrier thickness�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), B19, 568, pp. 1922-1925, Austin, Texas, June 6 (2012).
- Shaojun Ma, Hassanet Sodabanlu, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gInGaAs/GaAsP asymmetric quantum wells for enhancing carrier escape through resonant tunneling�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), B7, 565, pp. 1908-1910, Austin, Texas, June 6 (2012).
- Yunpeng Wang, ShaoJun Ma, Hassanet Sodabanlu, Hiromasa Fujii, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gA multi-step superlattice solar cell with enhanced sub-band absorption and open circuit voltage�h, Conference Record, the 38th IEEE Photovoltaic Specialists Conference (PVSC 38), C11, 573, pp. 1940-1943, Austin, Texas, June 6 (2012).
- Akihiro Nakamura, Masakazu Sugiyama, Yoshiaki Nakano, and Katsushi Fujii: �gComparison between semiconductor-electrolyte and semiconductor-metal Schottky junctions using AlGaN/GaN photoelectrochemical electrode�h, Abstracts CD, First International Workshop on Solar-Chemical Energy Storage (SolChES 2012), W-1-3, Sendai, Japan, July 25 (2012).
- Yu Fujimoto, Akio Higo, Jon Oyvind Kjellman, Shota Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gPhotoluminescence of InGaAs islands on Si (111) substrate grown using micro-channel selective-area MOVPE�h, International Conference on Optical MEMS and Nanophotonics (OMN 2012), WP25, pp. 200-201, Banff, Canada, August 8 (2012).
- Sunghan Choi, Akio Higo, Kazutaka Kikuta, Hiroshi Toshiyoshi, and Yoshiaki Nakano: �gA slanted InP waveguide for fiber coupler using skewed dry etching process�h, International Conference on Optical MEMS and Nanophotonics (OMN 2012), WP26, pp. 202-203, Banff, Canada, August 8 (2012).
- Shota Watanabe, Kentaroh Watanabe, Akio Higo, Masakazu Sugiyama, and Yoshiaki Nakano: �gElectrical conduction property at InAs/Si (111) interface by selective-area MOVPE�h, Conference Proceedings, 24th International Conference on Indium Phosphide and Related Materials (IPRM 2012), Tu-2E.4, pp. 1-3, Santa Barbara, California, August 28 (2012).
- Masafumi Yokoyama, Noriyuki Taoka, Rena Suzuki, Osamu Ichikawa, Hisashi Yamada, Noboru Fukuhara, Masahiko Hata, Masakazu Sugiyama, Yoshiaki Nakano, Mitsuru Takenaka, and Shinichi Takagi: �gSulfur cleaning for (100) (111)A and (111)B InGaAs surfaces with In content of 0.70 and their Al2O3/InGaAs MOS interface properties�h, Conference Proceedings, 24th International Conference on Indium Phosphide and Related Materials (IPRM 2012), Tu-3E.5, pp. 1-4, Santa Barbara, California, August 28 (2012).
- Takuo Tanemura: �gMonolithic InP switches based on optical phased array�h, International Conference on Photonics in Switching (PS 2012), Workshop 1 �gProgress in optical routers and buffers�h, no. 3, pp. 1-2, Ajaccio-Corsica, France, Sept. 11 (2012).
- Myung-Joon Kwack, Takuo Tanemura, Akio Higo, and Yoshiaki Nakano: �gMonolithic InP strictly mon-blocking 8�~8 switch for hgh-speed WDM optical interconnection�h, Proceedings (Post-deadline Papers), 38th European Conference on Optical Communications (ECOC 2012), Th.3.B.3, pp. 25-27, Amsterdam, the Netherlands, September 20 (2012).
- Yunpeng Wang, Kentaroh Watanabe, Hiromasa Fujii, Hassanet Sodabanlu, Masakazu Sugiyama, and Yoshiaki Nakano: �gObservation of a strong open-circuit voltage enhancement in a super-lattice solar cell under concentration: a potential scenario for a high efficiency single junction cell�h, 27th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 27), 1AO.7.6, pp. 41-43, Frankfurt, Germany, September 24 (2012).
- Minato Seno, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gMonolithic integrated series-connected GaAs solar cells with bypass diodes for reduced Joule energy loss under concentration�h, 27th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 27), 1AV.3.5, pp. 178-180, Frankfurt, Germany, September 24 (2012).
- Hiromasa Fujii, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEnhanced carrier collection efficiency in InGaAs/GaAsP quantum well solar cells by compensation doping�h, 27th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 27), 1AO.7.2, pp. 27-31, Frankfurt, Germany, September 24 (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gCorrelation between performance of InGaAs/GaAsP multiple quantum well solar cells and average strain evaluated by wafer curvature and X-ray reciprocal space mapping�h, 27th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 27), 1BV.7.26, pp. 325-327, Frankfurt, Germany, September 25 (2012).
- Jon Oyvind Kjellman, Akio Higo, and Yoshiaki Nakano: �gDesign of photonic crystal cavity for hexagonal islands�h, IEEE Photonics Conference (IPC 2012), TuH5, pp. 272-273, San Francisco, California, September 25 (2012).
- Akihiro Nakamura, Masakazu Sugiyama, Yoshiaki Nakano, and Katsushi Fujii: �gComparison between semiconductor-electrolyte and semiconductor-metal Schottky junctions using AlGaN/GaN photoelectrochemical electrode�h, International Workshop on Nitride Semiconductors (IWN 2012), MoP-ED-17, Sapporo, Japan, October 15 (2012).
- Kazehiko Anazawa, Sodabanlu Hassanet, Katsushi Fujii, Yoshiaki Nakano, and Masakazu Sugiyama: �gImpact of accumulated stress on the quality of InGaN/AlN MQWs on GaN grown by MOVPE�h, International Workshop on Nitride Semiconductors (IWN 2012), TuP-GR-30, Sapporo, Japan, October 16 (2012).
- Yunpeng Wang, Shaojun Ma, Hassanet Sodabanlu, Hiromasa Fujii, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gSmart interface management to implement a high quality strain balanced super-lattice solar cell�h, 22nd International Photovoltaic Science and Engineering Conference (PVSEC-22), 4-O-4, pp. 1-4, Hangzhou, China, November 6 (2012).
- Boram Kim, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gDrastic QE enhancement by light-trapping structure in InGaAs/GaAsP multiple quantum-well solar cells�h, 22nd International Photovoltaic Science and Engineering Conference (PVSEC-22), 3-O-27, pp. 1-4, Hangzhou, China, November 7 (2012).
- Hassanet Sodabanlu, Shaojun Ma, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gChirped distributed Bragg reflector for enhancing light absorption in InGaAs/GaAs multiple-quantum-well single-junction solar cells�h, 22nd International Photovoltaic Science and Engineering Conference (PVSEC-22), 4-P-29, pp. 1-3, Hangzhou, China, November8 (2012).
- Kentaroh Watanabe, Kasidit Toprasertpong, Hiromasa Fujii, Hassanet Sodabanlu, Masakazu Sugiyama, and Yoshiaki Nakano: �gTemperature-dependent photoluminescence analysis for InGaAs/GaAsP multiple quantum wells solar cell�h, 22nd International Photovoltaic Science and Engineering Conference (PVSEC-22), 4-O-30, pp. 1-4, Hangzhou, China, November 9 (2012).
- Shaojun Ma, Yunpeng Wang, Hassanet Sodabanlu, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gInGaAs/GaAsP MQWs solar cell with tunneling assisted structure for enhancing carrier transportation�h, 22nd International Photovoltaic Science and Engineering Conference (PVSEC-22), 4-O-32, pp. 1-4, Hangzhou, China, November 9 (2012).
- Katsushi Fujii, Shinichiro Nakamura, Kentaroh Watanabe, Behgol Bagheri, Masakazu Sugiyama, and Yoshiaki Nakano: �gOver 12% light to hydrogen energy conversion eficiency of hydrogen generation from water: new system concept, concentrated photovoltaic electrochemical cell (CPEC)�h, 2012 MRS Fall Meeting and Exhibit, Symposium C �gElectrocatalysis and Interfacial Electrochemistry for Energy Conversion and Storage�h, C11.06, Boston, Massachusetts, U.S.A., November 28 (2012).
- Masakazu Sugiyama, Katsushi Fujii, Shinichiro Nakamura, Kentaroh Watanabe, Behgol Bagheri, and Yoshiaki Nakano: �gMultijunction photovoltaic design for concentrated photovoltaic electrochemical cell (CPEC): toward 30% energy conversion efficiency from sunlight to hydrogen�h, 2012 MRS Fall Meeting and Exhibit, Symposium E �gPhotovoltaic Technologies-Materials, Devices, and Systems�h, E16.02, Boston, Massachusetts, November 29 (2012).
- Masakazu Sugiyama: �gSuperlattice cell under sunlight concentration�h, 4th International Workshop on Quantum Nanostructure Solar Cells/8th Seminar on Quantum Nanostructure Materials, 7, Kobe, Japan, December 4 (2012).
- Yoshiaki Nakano: �g(Panel Discussion) III-V lasers on silicon: direct bonding or heteroepitaxy ?�h, Thematic Workshop, Tuscany-Europe 2020: New Frontier of Silicon Photonics, Brussels, Belgium, February 1 (2013).
- Masakazu Sugiyama, Kentaroh Watanabe, Yunpeng Wang, Hassanet Sodabanlu, Hiromassa Fujii, Boram Kim, Kenjiro Miyano, and Yoshiaki Nakano: �g(Invited Paper) Efficiency gain of quantum-well solar cells by light-trapping structure and sunlight concentration�h, SPIE Conference 8620, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II (Part of SPIE Photonics West/OPTO), Paper 8620-48, San Francisco, California, February 6 (2013).
- Daniel J. Farrell, Hassanet Sodabanlu, Yunpeng Wang, Ryo Tamaki, Masakazu Sugiyama, Yoshitaka Okada, Markus Fu?hrer, Louise C. Hirst, and Nicholas J. Ekins-Daukes: �gThermal up-conversion in nanostructured GaAs solar cells�h, SPIE Conference 8620, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II (Part of SPIE Photonics West/OPTO)�h, Paper 8620-51, San Francisco, California, February 6 (2013).
- Hiromasa Fujii, Yunpeng Wang, Kentaroh Watanabe, Masakazu Sugiyama, Yoshiaki Nakano: �gCarrier collection efficiency in multiple quantum well solar cells�h, SPIE Conference 8620, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II (Part of SPIE Photonics West/OPTO), Paper 8620-52, San Francisco, California, February 6 (2013).
- Masaru Zaitsu, Takuo Tanemura, Akio Higo, and Yoshiaki Nakano: �gSelf-aligned InP/InGaAsP polarization converter for polarization-multiplexed photonic integrated circuits�h, Technical Digest CD, Conference on Optical Fiber Communication (OFC/NFOEC 2013), OTh4I.3, pp. 1-3, Anaheim, California, March 21 (2013).
- Hiromasa Fujii, Kasidit Toprasertpong, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gCarrier collection efficiency in multiple quantum well solar cells�h, Proceedings of SPIE, vol. 8620 (Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II), 86201F-1-8, March 25, 2013.
Review Papers
- Ží‘º‘ñ•v, ’†–ì‹`�º: �g(‰ð�à˜_•¶) InPŒõ�W�ωñ˜H‚É‚æ‚é�ȃGƒlƒ‹ƒM�[ŒõƒXƒCƒbƒ`ƒ“ƒO‹Z�p (Laser Review: InP-based photonic integrated circuits for low-energy optical switching)�h,ƒŒ�[ƒU�[Œ¤‹†, vol. 40, no. 5, pp. 344-350,”N5ŒŽ15“ú (2012).
- Ibrahim Murat Soganci, Tanemura Takuo, and Yoshiaki Nakano: �g(Review Paper) Integrated phased-array switches for large-scale photonic routing on chip�h, Laser & Photonics Reviews, Wiley-VCH, vol. 6, no. 4, pp. 549-563, July (2012).
- ’†–ì‹`�º, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a: �g(‰ð�à) ŽŸ�¢‘ã�‚Œø—¦‘¾—z“d’r‚ÌŒ¤‹†ŠJ”“®Œü -50%’´‚̕ϊ·Œø—¦‚ð–ÚŽw‚µ‚Ä (R&D trends of next generation high-efficiency photovoltaic cells -toward conversion efficiency beyond 50%)�h, “ú–{ƒ}ƒŠƒ“ƒGƒ“ƒWƒjƒAƒŠƒ“ƒOŠw‰ïŽ� (Journal of the Japan Institute of Marine Engineering), vol. 47, no. 4, pp. 77-84, 7ŒŽ1“ú (2012).
- Masakazu Sugiyama: �g(Keynote Talk) Efficiency improvement of III-V solar cells using quantum well superlattice�h, International Conference of Young Researchers on Advanced Materials (ICYRAM 2012), EM1-M-09, A-1353, Singapore, July 2 (2012).
- Yoshiaki Nakano and Takuo Tanemura: �g(Invited Talk) Progress of InP monolithically integrated photonic circuits for switching and digital processing�h, Technical Digest, the 17th OptoElectronics and Communications Conference (OECC 2012), 4D3-1, pp. 230-231, Busan, Korea, July 4 (2012).
- Masakazu Sugiyama: �g(Invited Talk) Enhancement of carrier collection for high-efficiency quantum-well solar cells�h, 21st International Materials Research Congress (IMRC 2012), Symposium 6C �gAdvances in Semiconductor Materials�h, S6C-0020, Cancun, Mexico, August 14 (2012).
- “¡ˆä�G�¹, ‰¤‰]–Q, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �g(�u‰‰�§—ã�ÜŽó�Ü‹L”O�u‰‰) InGaAs/GaAsP—ÊŽqˆäŒË‘¾—z“d’r‚É‚¨‚¯‚éƒoƒbƒNƒOƒ‰ƒEƒ“ƒhƒh�[ƒsƒ“ƒO‚̉e‹¿ (Effects of background doping in InGaAs/GaAsP quantum well solar cells)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 12a-H8-1, p. 14-228, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ12“ú (2012).
- �à’×D, ”ìŒã�º’j, Ží‘º‘ñ•v, ’†–ì‹`�º: �g(�µ‘Ò�u‰‰) InPŒõ�W�ωñ˜H‚É“K�‡‚µ‚½“±”g˜HŒ^•Δg•ÏŠ·Ší (Waveguide polarization converter for InP monolithic photonic integrated circuit)�h, “dŽq�î•ñ’Ê�MŠw‰ïƒGƒŒƒNƒgƒ�ƒjƒNƒXƒ\ƒTƒCƒGƒeƒB‘å‰ï(•xŽR‘åŠw), �u‰‰˜_•¶�W1, CI-1-2, pp. SS-3-4, 9ŒŽ13“ú (2012).
- ’†–ì‹`�º: �g(“Á•Ê�u‰‰) �WŒõŒ^‘¾—zŒõ”“d‚ÉŒü‚¯‚½’´�‚Œø—¦ƒZƒ‹‚ÌŠJ”“®Œü�h, ƒGƒŒƒNƒgƒ�ƒjƒNƒXŽÀ‘•Šw‰ï Œõ‰ñ˜HŽÀ‘•‹Z�pŒöŠJŒ¤‹†‰ï, OPT50-1, �¼‰¬ŒE, 10ŒŽ9“ú (2012).
- ’†–ì‹`�º: �g(Šî’²�u‰‰) �WŒõŒ^‘¾—zŒõ”“d‚ÉŒü‚¯‚½’´�‚Œø—¦ƒZƒ‹‚ÌŠJ”“®Œü�h, ‘æ50‰ñOPTŒöŠJŒ¤‹†‰ï�u“Á�W�F‘¾—z“d’r‚ÆŒõŽÀ‘•‹Z�p�v(ƒGƒŒƒNƒgƒ�ƒjƒNƒXŽÀ‘•Šw‰ï Œõ‰ñ˜HŽÀ‘•‹Z�pŒ¤‹†‰ï), ‰ñ˜H‰ïŠÙ, 10ŒŽ9“ú (2012).
- Yoshiaki Nakano: �g(Invited Talk) Monolithic and hybrid integrated photonic devices and circuits for optical switching and interconnect�h, Frontiers in Optics 2012 (the 96th OSA Annual Meeting) and Laser Science XXVIII (the 28th APS/DLS Annual Meeting), FW4E.4, Rochester, New York, U.S.A. October 17 (2012).
- ’†–ì‹`�º: �g(�µ‘Ò�u‰‰) ’´�‚Œø—¦‘½�Ú�‡Œ^‚¨‚æ‚Ñ’†ŠÔƒoƒ“ƒhŒ^‘¾—z“d’r (Multiple junction and intermediate band solar cells for ultra-high efficiency)�h, ‰ž—p•¨—�Šw‰ï —ÊŽqƒGƒŒƒNƒgƒ�ƒjƒNƒXŒ¤‹†‰ï�u‘¾—z“d’r‚Æ—ÊŽqƒGƒŒƒNƒgƒ�ƒjƒNƒX?”ŒõƒfƒoƒCƒX�EŒõ•¨�«‚ÌŒ¤‹†ŽÀ�Ñ‚ð‚Ç‚¤�¶‚©‚·‚©�v�u‰‰Ž‘—¿, •s’q‘åŠwŒyˆä‘òƒZƒ~ƒi�[ƒnƒEƒX, 12ŒŽ20 (2012).
- Masakazu Sugiyama, Hiromasa Fujii, Yu Wen, Yunpeng Wang, Hassanet Sodabanlu, Kentaroh Watanabe, and Yoshiaki Nakano: �g(Invited Talk) InGaAs/GaAsP quantum-well superlattice solar cell for better carrier collection and higher efficiency�h, Abstract Book, 2012 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 12), 8-1, pp. 125-126, Melbourne, Australia, December 13 (2012).
- Masakazu Sugiyama, Yunpeng Wang, Hiromasa Fujii, Hassanet Sodabanlu, Kentaroh Watanabe, and Yoshiaki Nakano: �g(Invited Paper) A quantum-well superlattice solar cell for enhanced current output and minimized drop in open-circuit voltage under sunlight concentration�h, ournal of Physics D: Applied Physics, vol. 46, no. 2, pp. 024001-1-11, February (2013).
- Šs–½�r, Ží‘º‘ñ•v, ”ìŒã�º’j, ’†–ì‹`�º: �g(ˆË—Š�u‰‰) InPƒtƒF�[ƒX?ƒg?ƒAƒŒƒC‹Z�p‚É‚æ‚é�W�ÏŒõƒ}ƒgƒŠƒNƒXƒXƒCƒbƒ`‚ÌŠJ” (Development of integrated optical matrix switches based on InP phased array technology)�h, “dŽq�î•ñ’Ê�MŠw‰ï‘��‡‘å‰ï(Šò•Œ‘åŠw), ƒGƒŒƒNƒgƒ�ƒjƒNƒX�u‰‰˜_•¶�W1, C-3-53, p. 213, 3ŒŽ22“ú (2013).
Symposium,etc...
- ›Á�¬Š¿, Šs–½�r, �à’×D, ›ÁŸªŠq, ”ìŒã�º’j, Ží‘º‘ñ•v, ’†–ì‹`�º: �gInGaAsP/InPƒtƒF�[ƒYƒhƒAƒŒƒCŒõ•ÎŒü‘fŽq‚Ì�ÝŒv‚¨‚æ‚Ð?“Á�«ŒŸ“¢ (Design and characteristic of InGaAsP/InP semiconductor optical beam steering device using a phased array)�h, ‘æ37‰ñ“ú–{ŒõŠw‰ïŒõŠwƒVƒ“ƒ|ƒWƒEƒ€, �u‰‰”Ô�†18, pp. 49-50, “Œ‹ž‘åŠw, 6ŒŽ15“ú (2012).
- Shota Watanabe, Kentaroh Watanabe, Akio Higo, Masakazu Sugiyama, and Yoshiaki Nakano: �gElectrical conduction property at InAs/Si (111) interface by selective-area MOVPE (Si(111)•s InAs ‚Ì‘I‘ð—L‹@‹à‘®‹C‘Š�¬’·‚É‚æ‚éŠE–Ê“d‹C“`“±“Á�«)�h, Extended Abstracts of the 31st Electronic Materials Symposium (EMS-31), We2-21, Shuzenji, Shizuoka, July 11 (2012).
- Minato Seno, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gMonolithic integrated series-connected GaAs solar cells with bypass diodes for reduced joule energy loss under concentration (�WŒõ‰º‚Ä?ƒV?ƒ…�[ƒ‹”M‘¹Ž¸‚ðŒyŒ¸‚·‚éƒn?ƒCƒn?ƒXƒ^?ƒCƒI�[ƒg?ƒ‚ƒmƒŠƒVƒbƒN�W�Ï’¼—ñ�Ú‘±GaAs‘¾—z“d’r)�h, Extended Abstracts of the 31st Electronic Materials Symposium (EMS-31), Fr1-11, Shuzenji, Shizuoka, July 13 (2012).
- Taketo Aihara, Yosuke Nakano, Atsuhiko Fukuyama, Yunpeng Wang, Masakazu Sugiyama, Yoshiaki Nakano, and Tetsuo Ikari: �gNon-radiative carrier recombination in InGaAs/GaAsP strain-balanced superlattice solar cell (InGaAs/GaAsP˜c•â�ž’´ŠiŽq‘¾—z“d’r‚Ì”ñ”Œõ�ÄŒ‹�‡‘¹Ž¸)�h, Extended Abstracts of the 31st Electronic Materials Symposium (EMS-31), Fr1-14, Shuzenji, Shizuoka, July 13 (2012).
- Hiromasa Fujii, Yunpeng Wang, Yu Wen, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gEfficient light absorption and electron transport with high-aspect-ratio structures in InGaAs/GaAsP multiple quantum well solar cells (�‚ƒAƒXƒw?ƒNƒg”ä—ÊŽqˆäŒË�\‘¢‚ð—p‚¢‚½InGaAs/GaAsP‘½�d—ÊŽqˆäŒË‘¾—z“d’r‚É‚¨‚¯‚éŒõ‹zŽû‚¨‚æ‚Ð?“dŽq‰ñŽû‚ÌŒø—¦‰»)�h, Extended Abstracts of the 31st Electronic Materials Symposium (EMS-31), Fr1-15, Shuzenji, Shizuoka, July 13 (2012).
- –Ζ،¹�l, ŒY•”�^�O, ’†–ì‹`�º, ’©“ú�O: �g(ƒpƒlƒ‹“¢˜_) ‹Z�p‚É‚æ‚éƒGƒlƒ‹ƒM�[‘n�o‚Æ“ú–{‚Ì–ðŠ„�h, JASIS‘æ1‰ñ‹L”OƒVƒ“ƒ|ƒWƒEƒ€�uƒGƒlƒ‹ƒM�[‚Ì–¢—ˆ�CŽ�‘±‰Â”\ŽÐ‰ï‚ðŽx‚¦‚镪�Í�E‰ÈŠw�v, –‹’£ƒ�ƒbƒZ, 9ŒŽ5“ú (2012).
- ƒCƒbƒg ƒt�[ƒ`ƒ‡ƒ“, ‘vŠw—Ç, ’†–ì‹`�º: �g(�µ‘Ò�u‰‰) �V‹Z�p‚É‚æ‚é�VŽs�ê‚Ì‘n‘¢‚ð–ÚŽw‚µ‚Ä ?‘åŠw”ƒxƒ“ƒ`ƒƒ�[‚Ì’§�í (University start-up challenges)�h, “dŽq�î•ñ’Ê�MŠw‰ïƒGƒŒƒNƒgƒ�ƒjƒNƒXƒ\ƒTƒCƒGƒeƒB‘å‰ï(•xŽR‘åŠw), �u‰‰˜_•¶�W1, CI-2-8, pp. SS-29-30, 9ŒŽ11 (2012).
- “nç³ãÄ‘å, “¡–{—I, “n•ÓŒ’‘¾˜Y, ”ìŒã�º’j, �¡ˆä�N•F, –Ø‘ºŽ , �™ŽR�³˜a, ’†–ì‹`�º: �gX�üƒ}ƒCƒNƒ�‰ñ�Ü–@‚É‚æ‚éSi(111)•sInGaAs‚Ì�¬’·ƒ�ƒJƒjƒYƒ€‰ð�Í (Analysis of InGaAs/Si(111) growth-mechanism by using X-ray microdiffraction)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 11p-J-2, p. 15-040, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ11“ú (2012).
- ’†‘º—º—T, �™ŽR�³˜a, ’†–ì‹`�º, “¡ˆä�ŽŽi: �gAlGaN/GaNŒõ“d‹C‰»Šw“d‹É‚É‚¨‚¯‚é—n‰t‚̉e‹¿ (Effect of the electrolyte on AlGaN/GaN photo-electrochemical electrode)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 11p-H7-5, p. 167, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ11“ú (2012).
- ‰¤‰_–Q, ”n��x, ƒnƒbƒTƒlƒbƒgƒ\ƒ_�[ƒoƒ“ƒ‹, “¡ˆä�G�¹, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �gInGaAs/GaAsP˜c‚Ý•â�ž’´ŠiŽqƒZƒ‹‚É‚¨‚¯‚éƒwƒeƒ�ŠE–Ê�ˆ—� (Smart interface management to implement a high quality strain balanced super-lattice solar cell)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 11p-H8-9, p. 95, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ11“ú (2012).
- “n•ÓŒ’‘¾˜Y, ƒLƒ€ ƒ{ƒ‰ƒ€, ƒnƒbƒTƒlƒbƒg ƒ\ƒ_�[ƒoƒ“ƒ‹, ”n��x, �™ŽR�³˜a, ’†–ì‹`�º: �gŒõŠw“I‚É”–‚¢‹zŽû‘w‚ðŽ�‚‘¾—z“d’r‚É‚¨‚¯‚é”––Œ‰»Œõ•‚¶�ž‚ß�\‘¢ (Thin-film light-trapping structure for the solar cells with optically-thin absorber)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 11p-H8-10, p. 96, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 2012”N9ŒŽ11 (2012).
- ‹àƒ{ƒ‰ƒ€, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �gŒõ•‚¶�ž‚ß�\‘¢‚ð—p‚¢‚½�‚Œø—¦—ÊŽqˆäŒË‘¾—z“d’r‚Ì�ì�» (Fabrication of high efficiency quantum-well solar cells using optical confinement structure)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 12a-H8-2, p. 14-229, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ12“ú (2012).
- ƒnƒbƒTƒlƒbƒgƒ\ƒ_�[ƒoƒ“ƒ‹, ”n��x, ‰¤‰_–Q, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �gƒ`ƒƒ�[ƒvDBR‚ð—p‚¢‚½InGaAs/GaAs‘½�d—ÊŽqˆäŒËƒZƒ‹‚É‚¨‚¯‚éŒõ‹zŽû‘�‘å (Chirped dstributed Bragg reflector for enhancing light absorption in InGaAs/GaAs multiple-quantum-well solar cells)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 12a-H8-3, p. 14-230, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ12“ú (2012).
- ”n��x, ƒnƒbƒTƒlƒbƒgƒ\ƒ_�[ƒoƒ“ƒ‹, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �gƒgƒ“ƒlƒ‹‰‡—pInGaAs/GaAsP‘½�d—ÊŽqˆäŒË‚É‚æ‚éƒLƒƒƒŠƒA’E�o‚Ì‘£�i (Novel tunneling assisted structure of InGaAs/GaAsP multiple quantum wells for enhancing carrier escape)�h, ‘æ73‰ñ‰ž—p•¨—�Šw‰ïŠw�p�u‰‰‰ï�u‰‰—\�e�W, 12a-H8-4, p. 14-231, ˆ¤•Q‘åŠw�E�¼ŽR‘åŠw, 9ŒŽ12“ú (2012).
- �£”\–¢“Þ“s, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì ‹`�º: �g�‚�WŒõ”“d—pƒ}ƒCƒNƒ��W�Ï’¼—ñ�Ú‘±GaAs‘¾—z“d’r‚ÌŽŽ�ì�h, ‰»Šw�HŠw‰ï‘æ44‰ñ�H‹G‘å‰ïŒ¤‹†”•\�u‰‰—vŽ|�W(“Œ–k‘åŠw), G215, 9ŒŽ20“ú (2012).
- “¡ˆä�G�¹, ‰¤‰]–Q, “n•ÓŒ’‘¾˜Y, �™ŽR�³˜a, ’†–ì‹`�º: �g•â�žƒh�[ƒsƒ“ƒO‚É‚æ‚éInGaAs/GaAsP—ÊŽqˆäŒË‘¾—z“d’r‚̃LƒƒƒŠƒA‰ñŽûŒø—¦Œü•s�h, ‰»Šw�HŠw‰ï‘æ44‰ñ�H‹G‘å‰ïŒ¤‹†”•\�u‰‰—vŽ|�W(“Œ–k‘åŠw), G217, 9ŒŽ20“ú (2012).
- “nç³ãÄ‘å, “n•ÓŒ’‘¾˜Y, ”ìŒã�º’j, �™ŽR�³˜a, ’†–ì‹`�º: �gSi(111)•sInAs‚Ì‘I‘ðƒwƒeƒ�ƒGƒsƒ^ƒLƒVƒƒƒ‹�¬’·‚É‚¨‚¯‚éŠE–Ê“d‹C“`“±“Á�«�h, ‰»Šw�HŠw‰ï‘æ44‰ñ�H‹G‘å‰ïŒ¤‹†”•\�u‰‰—vŽ|�W(“Œ–k‘åŠw), G219, 9ŒŽ20“ú (2012).
- ›Á�¬Š¿, ”ìŒã�º’j, �à’×D, ”N‹g—m, ’†–ì‹`�º: �gInPŽÎ‚߃Gƒbƒ`ƒ“ƒN?‚ð—p‚¢‚½�‚’¼�oŽËŒ^ŒõƒJƒt?ƒ‰‚ÌŠJ” (Development of an off-chip optical coupler using InP slanted etching technique)�h, “d‹CŠw‰ïƒZƒ“ƒT�E ƒ}ƒCƒNƒ�ƒ}ƒVƒ“•”–å‘å‰ï, ‘æ29‰ñ�uƒZƒ“ƒT�Eƒ}ƒCƒNƒ�ƒ}ƒVƒ“‚Ɖž—pƒVƒXƒeƒ€�vƒVƒ“ƒz?ƒV?ƒEƒ€˜_•¶�W, 3F2-5, pp. 431-434, –k‹ã�B, 10ŒŽ24“ú (2012).
- “¡–{—I, ”ìŒã�º’j, Jon O. Kjellman, “nç³ãÄ‘å, �™ŽR�³˜a, ’†–ì‹`�º: �g”÷�¬—̈æ‘I‘ð�¬’·MOVPE‚É‚æ‚éSiŠî”•sInGaAsƒe?ƒBƒXƒN‚̃tƒHƒgƒ‹ƒ~ƒlƒbƒZƒ“ƒX‘ª’è (Photoluminescence of InGaAs islands on Si (111) substrate grown using micro-channel selective-area MOVPE)�h, “d‹CŠw‰ïƒZƒ“ƒT�E ƒ}ƒCƒNƒ�ƒ}ƒVƒ“•”–å‘å‰ï, ‘æ29‰ñ�uƒZƒ“ƒT�Eƒ}ƒCƒNƒ�ƒ}ƒVƒ“‚Ɖž—pƒVƒXƒeƒ€�vƒVƒ“ƒz?ƒV?ƒEƒ€˜_•¶�W, 3F3-1, pp. 435-438, –k‹ã�B, 10ŒŽ24“ú (2012).
- �à’×D, ”ìŒã�º’j, Ží‘º‘ñ•v, ’†–ì‹`�º: �gƒ‚ƒmƒŠƒVƒbƒN•Δg‘½�d‘—�M‰ñ˜H‚Ì‚½‚ß‚ÌInP•Δg•ÏŠ·Ší‚ÌŽŽ�ì‚Æ•]‰¿ (Fabrication and evaluation of an InP polarization converter for monolithic polarization division multiplexed photonic integrated circuit)�h, “dŽq�î•ñ’Ê�MŠw‰ï‹Z�pŒ¤‹†•ñ��(ŒõƒGƒŒƒNƒgƒ�ƒjƒNƒXŒ¤‹†‰ï, OCS, LQE‹¤�Ã), vol. 112 no. 259, OPE2012-122, pp. 155-160, 10ŒŽ26“ú (2012).
- �™ŽR�³˜a: �gƒCƒ“ƒgƒ�ƒ_ƒNƒgƒŠ�[ƒg�[ƒN�F‘¾—z“d’r‚Ì�‚Œø—¦‰»‚É�vŒ£‚·‚éIII-VƒiƒmƒGƒsƒ^ƒLƒVƒƒƒ‹�¬’·�h, ‘æ42‰ñŒ‹�»�¬’·�‘“à‰ï‹c(NCCG-42), 10aA01, ‹ã�B‘åŠw, 11ŒŽ“ú (2012).
- ’†–ì‹`�º: �g’´�‚Œø—¦‘¾—z“d’r‚Æ�WŒõŒ^‘¾—zŒõ”“d�h, ‘æ4‰ñƒGƒCƒgƒ‰ƒ€ƒ_ƒtƒH�[ƒ‰ƒ€, ‹â�Àƒ‰ƒtƒBƒi�[ƒg, 12ŒŽ6“ú (2012).
- ’†–ì‹`�º: �gŠv�V“I‘¾—zŒõ”“d‹Z�p (Revolutional solar power generation technology)�h, ŒõŽY‹Æ‹Z�p�U‹»‹¦‰ï ‘æ21‰ñƒtƒHƒgƒjƒbƒNƒfƒoƒCƒX�E‰ž—p‹Z�pŒ¤‹†‰ïƒ��[ƒNƒVƒ‡ƒbƒv�uŒõ‚ª�Ø‚è‘ñ‚–¢—ˆ�v�u‰‰Ž‘—¿�W, ŽY‘�Œ¤—ÕŠC•›“s�SƒZƒ“ƒ^�[, 12ŒŽ19“ú (2012).
- Yoshiaki Nakano: �gPost-silicon solar cells for ultra-high efficiency�h, Abstracts, 5th International Symposium on Innovative Solar Cells, pp. L-03, Tsukuba, Japan, January 21 (2013).
- Yunpeng Wang, Kentaroh Watanabe, Hassanet Sodabanlu, Shaojun Ma, Hiromasa Fujii, Kasidit Toprasertpong, Masakazu Sugiyama, and Yoshiaki Nakano: �gSuperlattice cell under sunlight concentration�h, Abstracts, 5th International Symposium on Innovative Solar Cells, pp. PC-4, Tsukuba, Japan, January 21 (2013).
- Kentaroh Watanabe, Boram Kim, Tomoyuki Inoue, Masakazu Sugiyama, Kenjiro Miyano, and Yoshiaki Nakano: �gLight-trapping structure for enhanced photon absorption by nanostructures�h, Abstracts, 5th International Symposium on Innovative Solar Cells, pp. PC-16, Tsukuba, Japan, January 21 (2013).
- Masanao Goto, Shinya Hayashi, Keisuke Nakayama, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano: �gLight management of quantum structured solar cells using rear-side plasmonic scatterer�h, Abstracts, 5th International Symposium on Innovative Solar Cells, pp. PC-17, Tsukuba, Japan, January 21 (2013).
- Šs–½�r, Ží‘º‘ñ•v, ”ìŒã�º’j, ’†–ì‹`�º: �gInPƒtƒF�[ƒYƒhƒAƒŒƒC8�~8�‚‘¬ŒõƒXƒCƒbƒ`ƒ}ƒgƒŠƒNƒX‚ÌŽÀ�Ø (Demonstration of InP phased-array 8�~8 high-speed optical switch matrix)�h, “dŽq�î•ñ’Ê�MŠw‰ï‹Z�pŒ¤‹†•ñ��(ŒõƒGƒŒƒNƒgƒ�ƒjƒNƒXŒ¤‹†‰ï, PN, EMT, LQE, MWP, EST‹¤�Ã), vol. 112 no. 399, OPE2012-165, pp. 193-196, 1ŒŽ25“ú (2013).
- ’Â’´, ”ìŒã�º’j, Šs–½�r, Ží‘º‘ñ•v, ’†–ì‹`�º: �g1�~8ƒtƒF�[ƒYƒAƒŒƒCŒ^ƒVƒŠƒRƒ“ŒõƒXƒCƒbƒ`‚ÌŽŽ�ì‚Æ•]‰¿ (1�~8 silicon photonics switch based on thermal-optic phased-array)�h, “dŽq�î•ñ’Ê�MŠw‰ï‘��‡‘å‰ï(Šò•Œ‘åŠw), ƒGƒŒƒNƒgƒ�ƒjƒNƒX�u‰‰˜_•¶�W1, C-3-54, p. 214, 3ŒŽ22“ú (2013).
Books
- ’†–ì‹`�º(ŠÄ�C): �g“dŽq‹Z�p�h, •¶•”‰ÈŠw�ÈŒŸ’苳‰È�‘ �‚“™Šw�Z�H‹Æ‰È, ƒI�[ƒ€ŽÐ (154ƒI�[ƒ€, �H‹Æ355), 3ŒŽ1“úŒŸ’è�Ï (2013).
Others
- �g“Œ‘å�æ’[‹Z�pŒ¤‹†ƒZƒ“ƒ^�[�C‹à‘òŽs“à‚ɘAŒg‹’“_�C�Ä�¶‰Â”\ƒGƒl‚ðŒ¤‹†�h, “ú–{Œo�Ï�V•·(’©Š§)39–Ê, 6ŒŽ29“ú (2012).
- �g�Ä�¶‰Â”\ƒGƒl‚ŘAŒg‚Ö�C“Œ‘å�æ’[Œ¤�CŒ§“àŠé‹Æ‚Æ�h, ’©“ú�V•·(’©Š§)35–Ê, 6ŒŽ29“ú (2012).
- �Ä�¶‰Â”\ƒGƒlŠJ”�C‹à‘ò‚É�V‹’“_�h, “Œ‘å‚ÌŒ¤‹†ƒZƒ“ƒ^�[�uƒTƒeƒ‰ƒCƒg�vŠJ�Ý","–k—¤’†“ú�V•·(’©Š§)16–Ê,”N6ŒŽ29“ú (2012).
- �g�Ä�¶ƒGƒl‚ÌŒ¤‹†�ŠŠJ�Ý�CŒ§�H‹ÆŽŽŒ±�ê�E“Œ‘å�æ’[Œ¤�C‘¾—z“d’r‚ÌŽÀŒ±Œv‰æ�h, –kš �V•·(’©Š§)3–Ê 6ŒŽ29“ú (2012).
- �g‰»�‡•¨Œ^‘¾—z“d’r‚Ì”“dŒø—¦Œü•s�C•��L‚¢”g’·‚ÌŒõ‹zŽû�C‰½“x‚à”½ŽË�C—Ê‘�‚â‚·�C“Œ‘傪‹Z�p�CŽÀ—p‰»‚ß‚´‚·�h, “úŒoŽY‹Æ�V•·(’©Š§), 8ŒŽ8“ú (2012).
- �g�Å‘¬‹‰ŒõƒP�[ƒuƒ‹—ÊŽY�C�æ’[ƒtƒHƒgƒjƒNƒX�CƒrƒbƒOƒf�[ƒ^‰ð�Í�h, “ú–{Œo�Ï�V•·(—[Ч) 1–Ê, 3ŒŽ30“ú (2013).
