2010 Fiscal Year Final Research Report
Real-time visualization of mi I I imeter wave based on ultra-parallel optical heterodyne method
| Project/Area Number |
20686027
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Measurement engineering
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| Research Institution | Nara Institute of Science and Technology |
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Principal Investigator |
SASAGAWA Kiyotaka Nara Institute of Science and Technology, 物質創成科学研究科, 助教 (50392725)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 電界計測 / ミリ波 / 電気光学効果 / 光ヘテロダイン / イメージセンサ |
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| Research Abstract |
To realize real-time imaging of millimeter wave electric field distribution by using a live electro-optic imaging camera, generation method of modulated light at a wavelength of 775nm with a modulation frequency of 100 GHz is successfully developed. The modulated light is applied to the live electro-optic imaging camera and imaging of a millimeter wave electric field at 100GHz is realized. In order to improve the sensitivity of electro-optic imaging, pixels for image sensor with polarizers is designed. The extinction ratio of 42 was achieved. For efficient amplification of detected signal, a differential detection circuit is designed. Through these researches, basic technologies for highly sensitive real-time millimeter imaging have been developed.
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