Acceleration of carrier-relaxation time in QDs embedded in a photonic crystal waveguide due to the Purcell effect

• Project/Area Number: 21760034
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: Wakayama University
• Principal Investigator: OZAKI Nobuhiko Wakayama University, システム工学部, 准教授 (30344873)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: フォトニック結晶 / 量子ドット / 超高速パルス分光 / 光非線形象 / 光非線形現象

Research Abstract

We have proposed to control a carrier relaxation time in self-assembled quantum dots (QDs) embedded in a photonic crystal waveguide (PC-WG) by using the Purcell effect. Resonance of a high photon density-of-states region in the PC-WG mode with the electron transition energy in the QD will increase the spontaneous emission rate and the carrier relaxation time can be shortened. To verify the resonance effect, QDs embedded in PC-WGs with various lattice constants were fabricated and pump-probe measurements were performed. As a result, we found that the relaxation time was shortened when the high photon DOS region resonated with the ES emission wavelength of the QD.

Research Products

• [Journal Article] Wideband Operation of 2D Photonic Crystal Directional Coupler with Topology Optimized Waveguide Bends (2010)
  • Author(s): Yoshinori Watanabe, Naoki Ikeda, Yoshiaki Takata, Yoshinori Kitagawa, Nobuhiko Ozaki, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: Journal of Nonlinear Optical Physics & Materials vol.19 Pages: 543-550
  • Peer Reviewed
• [Journal Article] Wideband Operation of 2D Photonic Crystal Directional Coupler with Topology Optimized Waveguide Bends (2010)
  • Author(s): Yoshinori Watanabe, Naoki Ikeda, Yoshiaki Takata, Yoshinori Kitagawa, Nobuhiko Ozaki, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: Journal of Nonlinear Optical Physics & Materials Volume: 19 Pages: 543-550
  • Peer Reviewed
• [Journal Article] Nanophotonics technology for advanced quantum dot/photonic crystal device and metal/semiconductor plasmonic device (2010)
  • Author(s): Y.Sugimoto, N.Ikeda, D.Tsuya, N.Ozaki, H.Oda, A.Yamanaka, A.Miura, T.Nomura, D.Inoue, H.Fujikawa, S.Ohkouchi, Y.Watanabe, Y.Koide, K.Satoh, K.Asakawa
  • Journal Title: Proc.of Photonics Global Conference (PGC) 2010 Pages: 1-5
• [Journal Article] Sequential Operations of Quantum Dot/Photonic Crystal All-optical Switch with High Repetitive Frequency Pumping (2009)
  • Author(s): Yoshinori Kitagawa, Nobuhiko Ozaki, Yoshiaki Takata, Naoki Ikeda, Yoshinori Watanabe, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: J.Lightwave Technol. vol.27 Pages: 1241-1247
  • Peer Reviewed
• [Journal Article] Monolithic Fabrication of Two-Color InAs QDs for Integrated Optical Devices by Using a Rotational Metal Mask (2009)
  • Author(s): Nobuhiko Ozaki, Shunsuke Ohkouchi, Yoshiaki Takata, Naoki Ikeda, Yoshinori Watanabe, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: Jpn.J.Appl.Phys.(065502) vol.48 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Advanced quantum dot and photonic crystal technologies for integrated nanophotonic circuits (2009)
  • Author(s): Y.Sugimoto, N.Ikeda, N.Ozaki, Y.Watanabe, S.Ohkouchi, T.Kuroda, T.Mano, T.Ochiai, K.Kuroda, N.Koguchi, K.Sakoda, K.Asakawa
  • Journal Title: Microelectronics Journal vol.40 Pages: 736-740
  • Peer Reviewed
• [Journal Article] Monolithic Fabrication of Two-Color InAs QDs for Integrated Optical Devices by Using a Rotational Metal Mask (2009)
  • Author(s): Nobuhiko Ozaki, Shunsuke Ohkouchi, Yoshiaki Takata, Naoki Ikeda, Yoshinori Watanabe, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: Jpn.J.Appl.Phys. 48 Pages: 0655021-0655024
  • Peer Reviewed
• [Journal Article] Sequential Operations of Quantum Dot/Photonic Crystal All-optical Switch with High Repetitive Frequency Pumping (2009)
  • Author(s): Yoshinori Kitagawa, Nobuhiko Ozaki, Yoshiaki Takata, Naoki Ikeda, Yoshinori Watanabe, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Journal Title: J.Lightwave Technol. 27 Pages: 1241-1247
  • Peer Reviewed
• [Journal Article] Nanophotonic technologies for innovative all-optical signal processor using photonic crystals and quantum dots (2009)
  • Author(s): Y.Sugimoto, N.Ikeda, N.Ozaki, Y.Watanabe, S.Ohkouchi, S.Nakamura, K.Asakawa
  • Journal Title: AIP Conf.Proc. 1147 Pages: 179-186
  • Peer Reviewed
• [Journal Article] Advanced quantum dot and photonic crystal technologies for integrated nanophotonic circuits (2009)
  • Author(s): Y.Sugimoto, N.Ikeda, N.Ozaki, Y.Watanabe, S.Ohkouchi, T.Kuroda, T.Mano, T.Ochiai, K.Kuroda, N.Koguchi, K.Sakoda, K.Asakawa
  • Journal Title: Microelectronics Journal 40 Pages: 736-740
  • Peer Reviewed
• [Presentation] 2次元フォトニック結晶スラブ線欠陥導波路を用いたInAs量子ドットレーザーに関する研究 (2011)
  • Author(s): 浜田直樹, 小田久哉, 山中明生, 尾崎信彦, 池田直樹, 杉本喜正
  • Organizer: 第46回応用物理学会北海道支部学術講演会
  • Place of Presentation: 室蘭工業大学
  • Year and Date: 2011-01-08
• [Presentation] フォトニック結晶導波路に埋込んだ量子ドットにおける光励起とキャリア緩和過程制御 (2010)
  • Author(s): 尾崎信彦, 宗石達矢, 北川嘉則, 池田直樹, 杉本喜正, 浅川潔
  • Organizer: 応用物理学会励起ナノプロセス研究会第六回研究会
  • Place of Presentation: ビッグ・アイ国際障害者交流センター(堺市)
  • Year and Date: 2010-11-02
• [Presentation] Evolution of Nanophotonics from Semiconductor Photonic Crystal Device to Metal/Semiconductor Plasmonic Device (2010)
  • Author(s): K.Asakawa, Y.Sugimoto, Y.Watanabe, N.Ikeda, N.Ozaki, D.Kumar V, T.Nomura, D.Inoue, A.Miura, H.Fujikawa, K.Sato
  • Organizer: 5^<th> Int.Conf.Advanced Optoelectronics and Lasers (CAOL 2010)
  • Place of Presentation: Sevastopol, Crimea, Ukraine.
  • Year and Date: 2010-09-11
• [Presentation] Evolution of Nanophotonics from Semiconductor Photonic Crystal Device to Metal/Semiconductor Plasmonic Device (2010)
  • Author(s): K.Asakawa, Y.Sugimoto, Y.Watanabe, N.Ikeda, N.Ozaki, D.Kumar V, T.Nomura, D.Inoue, A.Miura, H.Fujikawa, K.Sato
  • Organizer: 5^<th> Int.Conf.Advanced Optoelectronics and Lasers (CAOL 2010)
  • Place of Presentation: Sevastopol, Crimea, Ukraine
  • Year and Date: 2010-09-11
• [Presentation] Fabrication and characterization of an all-optical flip-flop based on photonic crystal waveguides and two-color quantum dots (2010)
  • Author(s): N.Ozaki, Y.Takata, Y.Kitagawa, N.Ikeda, S.Nakamura, S.Ohkouchi, A.Watanabe, Y.Watanabe, Y.Sugimoto, K.Asakawa
  • Organizer: OSA Int.Conf.Nanophotonics 2010
  • Place of Presentation: Tsukuba, Japan.
  • Year and Date: 2010-06-01
• [Presentation] Fabrication and characterization of an all-optical flip-flop based on photonic crystal waveguides and two-color quantum dots (2010)
  • Author(s): N.Ozaki, Y.Takata, Y.Kitagawa, N.Ikeda, S.Nakamura, S.Ohkouchi, A.Watanabe, Y.Watanabe, Y.Sugimoto, K.Asakawa
  • Organizer: OSA Int.Conf.Nanophotonics 2010
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2010-06-01
• [Presentation] Wideband operation of 2D photonic crystal directional coupler with topology optimized waveguide bends (2010)
  • Author(s): Y.Watanabe, N.Ikeda, Y.Takata, Y.Kitagawa, N.Ozaki, Y.Sugimoto, K.Asakawa
  • Organizer: OSA Int.Conf.Nanophotonics 2010
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2010-06-01
• [Presentation] Monolithic Selective-area Growth of Two-Color InAs QDs with a Rotational Metal Mask for Integrated Optical Devices (2009)
  • Author(s): Nobuhiko Ozaki, Shunsuke Ohkouchi, Naoki Ikeda, Yoshimasa Sugimoto, Kiyoshi Asakawa
  • Organizer: 2^<nd> Int.Workshop on Epitaxial Growth and Fundamental Properties of Semiconductor Nanostructures (SemiconNano 2009)
  • Place of Presentation: 阿南工業高等専門学校、阿南市、徳島県
  • Year and Date: 2009-08-11
• [Book] "Ch.9 Photonic crystal all-optical switches" of "Optical switches -Materials and design-" (2010)
  • Author(s): K.Asakawa, Y.Sugimoto, N.Ikeda, Y.Watanabe, N.Ozaki, Y.Takata, Y.Kitagawa, S.Ohkouchi, S.Nakamura, A.Watanabe, X.Wang
  • Publisher: Woodhead Publishing Limited
• [Book] Ch.9 Photonic crystal all-optical switches (Optical switches-Materials and design-) (2010)
  • Author(s): K.Asakawa, Y.Sugimoto, N.Ikeda, Y.Watanabe, N.Ozaki, Y.Takata, Y.Kitagawa, S.Ohkouchi, S.Nakamura, A.Watanabe, X.Wang
  • Publisher: Woodhead Publishing Limited