Coherent control of cavity polaritons based on the organic molecular crystal

• Project/Area Number: 26287093
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: Katsuki Hiroyuki 奈良先端科学技術大学院大学, 物質創成科学研究科, 准教授 (10390642)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000); Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2015: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2014: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: 励起子ポラリトン / 強結合状態 / コヒーレント制御 / 有機半導体 / フェムト秒分光 / 非線形分光 / 二次元位相変調 / 固体パラ水素

Outline of Final Research Achievements

We have investigated the preparation of a cavity polariton system based on the thin layer of organic semiconductor as the active material. We created the cavity mechanically by putting organic thin layer between two high reflective mirrors. The formation of the cavity polaritons was checked by monitoring the angle dependent reflectivity and fluorescence measurements. The vacuum Rabi splitting was estimated to be 300meV at the maximum.
The demonstration of the coherent control of two dimensional distribution of the excited state is performed using solid para-hydrogen as a sample. The two-dimensional distribution of the excited states is designed by modulating the wave front of the pump laser pulses by the spatial light modulator. We have successfully retrieved the 2x2 spot patterns of the excited states and also checked the relative phase factor between the neighboring spots are also maintained in each spot.

Research Products

• [Journal Article] Manipulation and visualization of two-dimensional phase distribution of vibrational wavefunctions in solid para-hydrogen crystal (2015)
  • Author(s): H. Katsuki, K. Ohmori, T. Horie, H. Yanagi, and K. Ohmori
  • Journal Title: Physical review B Volume: 92 Issue: 9 Pages: 94511-94511
  • DOI: 10.1103/physrevb.92.094511
  • Peer Reviewed
• [Presentation] 有機半導体マイクロキャビティにおける緩和・凝縮過程の観測 (2016)
  • Author(s): 水野 英之, 香月 浩之, 柳 久雄
  • Organizer: 第10回分子科学討論会
  • Place of Presentation: 神戸ファッションマート（兵庫県神戸市）
  • Year and Date: 2016-09-15
• [Presentation] Manipulation and visualization of two-dimensional phase distribution of wave functions in solid parahydrogen (2016)
  • Author(s): Hiroyuki Katsuki
  • Organizer: 1st International symposium on advanced photonics
  • Place of Presentation: ホテル九重（静岡県浜松市）
  • Year and Date: 2016-04-13
  • Int'l Joint Research
• [Presentation] Spatial manipulation of amplitude and phase distribution of vibrational excitations in solid parahydrogen (2015)
  • Author(s): Hiroyuki Katsuki
  • Organizer: Pacifichem2015
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2015-12-17
  • Int'l Joint Research / Invited
• [Presentation] Manipulating vibrational wave function of solid parahydrogen using 2D spatial light modulator (2015)
  • Author(s): 香月 浩之
  • Organizer: 第16回光量子科学研究シンポジウム
  • Place of Presentation: 関西光科学研究所（京都府木津川市）
  • Year and Date: 2015-10-16
• [Presentation] 二次元位相変調器を用いた固体パラ水素の振動波動関数の位相制御 (2015)
  • Author(s): 香月 浩之, 大森 健三, 堀江 徹, 柳 久雄, 大森 賢治
  • Organizer: 分子科学討論会
  • Place of Presentation: 東工大（東京都目黒区）
  • Year and Date: 2015-09-19
• [Presentation] 有機半導体キャビティポラリトンのコヒーレント制御に向けて (2015)
  • Author(s): 水野 英之, 香月 浩之, 柳 久雄
  • Organizer: 分子科学討論会
  • Place of Presentation: 東工大（東京都目黒区）
  • Year and Date: 2015-09-18
• [Presentation] ultrafast manipulation of coherent states ~from gas phase to condensed phase (2015)
  • Author(s): Hiroyuki Katsuki
  • Organizer: Workshop on Hierarchy of Quantum Mechanics
  • Place of Presentation: 分子科学研究所（愛知県岡崎市）
  • Year and Date: 2015-02-21 – 2015-02-23
  • Invited
• [Presentation] 光位相変調技術を用いた量子干渉イメージの制御 (2014)
  • Author(s): 大森健三, 堀江徹, 柳久雄, 香月浩之
  • Organizer: 第25回光物性研究会
  • Place of Presentation: 神戸大学（兵庫県神戸市）
  • Year and Date: 2014-12-12 – 2014-12-13
• [Presentation] ultrafast manipulation of coherent states in gas and condensed phases (2014)
  • Author(s): Hiroyuki Katsuki
  • Organizer: 11th Asian International Seminar on Atomic and Molecular Physics
  • Place of Presentation: 東北大学（宮城県仙台市）
  • Year and Date: 2014-10-06 – 2014-10-10
  • Invited
• [Presentation] 位相変調技術を用いた量子干渉イメージの観測 (2014)
  • Author(s): 大森健三, 堀江徹, 柳久雄, 香月浩之
  • Organizer: 第８回分子科学討論会
  • Place of Presentation: 広島大学（広島県東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24