| Project/Area Number |
20560036
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Osaka University |
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Principal Investigator |
YOKOYAMA Shuko Osaka University, 大学院・基礎工学研究科, 特任研究員 (30437363)
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| Co-Investigator(Kenkyū-buntansha) |
YASUI Takeshi 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (70314408)
ARAKI Tsutomu 大阪大学, 大学院・基礎工学研究科, 教授 (50136214)
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| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 光計測 / テラヘルツ / 光周波数コム / 周波数標準 / ファイバーレーザー / テラヘルツ電磁波 / 周波標準 / 周波数標準コム / 周波数カウンター / フェムト秒レーザー / 光伝導ミキシング / 光伝導アンテナ / フイバーレーザー |
|---|
| Research Abstract |
We have developed a high-accuracy and high-resolution teraheltz(THz) electromagnetic wave frequency counter based on THz standard frequency comb, which consists of many accurate frequency lines extending from microwave region to THz region, utilizing our previously developed "multifrequency heterodyning photoconductive detection". The system adopted a fiber laser as a light source to be small-size, stable and robust instrument for a practical use. Measurement precision of 2.4*10^<-1>, bandwidth of 1THz and minimum power limitation of a few hundreds of nanowatt have been achieved.
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