2013 Fiscal Year Final Research Report
Development of electric field sensor with optically modulated scatterer
| Project/Area Number |
23560430
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Akita Research and Development Center |
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Principal Investigator |
KUROSAWA Takahiro 秋田県産業技術センター, その他部局等, 主任研究員 (60370243)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 電界計測 / 変調散乱 / 光変調 / 誘電体 / 高周波 / 電磁環境両立性 |
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| Research Abstract |
Electric field measurement sensor based on the modulated scattering technique with optically modulated scatterer had developed. A semiconductor is used as the scatterer, and illumination of the semiconductor with photons of energy larger than the band-gap energy of the scatterer, the scattering cross section can modulate. Undoped germanium
is used as the optically modulated scatterer, time response of the detection is ten times faster than the previously developed dielectric scatterer system. This sensor obtained almost the same sensitivity of optical electric field sensor with metallic dipole elements in microwave region. This sensor can measure the direction, amplitude, and phase of electric field and can change the spatial resolution with varying the diameter of illuminated light.
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