| Project/Area Number |
06245102
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas (A)
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| Allocation Type | Single-year Grants |
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HANAMURA Eiichi Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (70013472)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMIZU Fujio Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (00011156)
YAMANISHI masamichi Hiroshima University, Faculty of Engineering, Professor, 工学部, 教授 (30081441)
TAKUMA Hiroshi Japan Atomic Energy Research Institute, Researcher, 光量子科学センター, 特別研究員
GONOKAMI Makoto Graduate School of Engineering, Associate Professor, 大学院・工学系研究科, 教授 (70161809)
CHO Kikuo Osaka University, Graduate School of Engineering Science, Professor, 大学院・基礎工学研究科, 教授 (60013489)
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| Project Period (FY) |
1994 – 1997
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| Keywords | laser cooling / atom wave optics / non classical light / optical micro cavity / exciton / cavity polariton / near-field spectroscopy / photonic band |
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| Research Abstract |
This project was supported for four years starting from April, 1994 to realize the quantum-mechanical and mutual control of well-confined or well-focused radiation-field and the well-manipulated material system, and to develop our understanding of these strong couplings. This project consists of three groups. The first group covers (1) production of a new material system of atomic gas by laser cooling, (2) near-field spectroscopy of crystal surfaces, and (3) realization of the photonic bandgap systems. This group has opened a new field of "coherent atom beam physics" and succeeded in demonstrating atomic hologram. The second group worked on mainly (4) GaAs-GaAl semiconductor quantum well system and succeeded in producing the photon-number squeezed radiation field over wide frequency"region by making use of the Stark effect and its feed-back effect on the electron-hole system. The third group tried to deduce (5) the stronger quantum-mechanical control from the condensed materials with larger oscillator strength. The laser action of Whisper-Gallery modes was observed from dyes embedded in polystyrene spheres and also coupling effects of these modes from 1D train of several spheres. Strong photon-number squeezing has been also predicted from the exciton-biexciton systems embedded in microcavity.
Several researches which were born and grown in this project are now being continued by new several big projects, e.g., Special Research Projects by Monbusho on "Near-Field Spectroscopy" and "Photonic Bandgap Systems".
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