2016 Fiscal Year Final Research Report
Development of a frequency-domain modulation spectroscopy system
| Project/Area Number |
25709028
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
|
| Keywords | テラヘルツ波 / ミリ波 / 計測 |
|---|
| Outline of Final Research Achievements |
We developed a frequency-domain modulation spectroscopy system in the terahertz (THz) range based on the self-heterodyne technique to enhance the sensitivity of the small spectral change measurement. To evaluate the effectiveness of our system, we measured absorption of the THz wave caused by photo-induced free carriers generated in a high-resistive Si substrate. we confirmed that the sensitivity of the amplitude absorption measurement was enhanced at least 14 dB. Our new system will pave the way for the sensitive measurement of THz spectral changes induced by photoexcitation in chemical, material, and biomedical sciences.
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| Free Research Field |
ミリ波フォトニクス, テラヘルツ波フォトニクス
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