| Project/Area Number |
26610126
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Aoyama Gakuin University |
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Principal Investigator |
Maeda Haruka 青山学院大学, 理工学部, 教授 (80260199)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | Rydberg 原子 / 単一低周波光子 / ダイポールブロケード / Rydberg原子 / 単一光子 / 低周波電磁波検出 / ダイポールブロケイド / 超放射 |
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| Outline of Final Research Achievements |
The purpose of the present research is to develop a quasi-frequency-tunable,low-frequency single-photon source. In an effort to realize such a novel photon source, we aim to prepare a single cold Rb Rydberg atom inside a Fabry-Perot cavity in the magneto-optical trap (MOT). It is well known that dipole blockade effect allows us to excite a single cold Rydberg atom in the MOT, and intense, single mode 480-nm tunable laser system is required to do so for cold Rb atoms in the MOT. In the present experiment we have constructed 480-nm laser system. Furthermore, we have designed a Fabry-Perot cavity for driving transitions between Rydberg states to produce a low-frequency single photon.
At the same time, we have observed low-fequency superradiance which is emitted from the the Rb Rydberg atoms in a gas cell. In addition, a new method of exciting Rydberg has been developed.
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