Superradiance from cold Rydberg atoms as a new THz wave source
| Project/Area Number |
26800215
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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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 | Institute of Physical and Chemical Research (2015)
Aoyama Gakuin University (2014) |
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Principal Investigator |
Takamine Aiko 国立研究開発法人理化学研究所, 仁科加速器研究センター, 研究員 (10462699)
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| Research Collaborator |
MAEDA Haruka 青山学院大学, 理工学部, 教授 (80260199)
SHIOZUKA Riki
TAKANO Masayuki
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | リュードベリ原子 / 超放射 / テラヘルツ波 / 冷却原子 / 磁気光学トラップ / テラヘルツ |
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| Outline of Final Research Achievements |
Due to the high transition probabilities to the neighboring states, highly excited Rydberg atoms emit a superradiacne radiation including a THz wave which has recently attracted much attention. Superradiance has been hard to observe in a cold Rydberg atoms, due to the mode-matching within a nonuniformly distributed atomic sample and strong atomic interactions. However, in the preceding study, the researchers observed the evidence of superradiance in a cold Rydberg Rb gas under the conditions which did not satisfy the Dicke condition. In order to systematically study a wide range of the mode-matching conditions, the improved optical system for laser trapping made larger cold Rb atoms than the previous ones and the optical system for the Rydberg excitation laser of a much higher power was designed.
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Report
(3 results)
Research Products
(3 results)
