发明名称 |
HIGH SENSITIVITY POLARIZED-LIGHT DISCRIMINATOR DEVICE |
摘要 |
The present invention provides for an improved polarized-light detector device. The device comprises a photodiode having a first contact disposed on the backside of a light-sensing medium and a second contact disposed on the frontside of the light-sensing medium. A spin filter medium is disposed between the backside of the light-sensing medium and the first contact. The application of a magnetic field aligns the magnetic moments in the spin-filter medium to cause the device to discriminate between different polarizations of an optical signal. The polarization discrimination is affected by introducing a net magnetization into the spin filter medium, thereby allowing selected spin-polarized electrons to either be transmitted through the spin filter medium to the point of detection or deflected from further transmission. Additionally, the invention is embodied in a polarization-selective-light detector array and methods for discriminating a polarized optical signal and selective optical wavelength detection.
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申请公布号 |
US2003075767(A1) |
申请公布日期 |
2003.04.24 |
申请号 |
US20010045356 |
申请日期 |
2001.10.23 |
申请人 |
MCNC |
发明人 |
LANNON JOHN M.;DAUSCH DAVID E.;TEMPLE DOROTA |
分类号 |
G01J4/00;H01F10/32;H01L31/0216;H01L31/0232;(IPC1-7):H01L27/14;H01L29/84;H01L29/82 |
主分类号 |
G01J4/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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