发明名称 |
ROOM-TEMPERATURE QUANTUM NOISE LIMITED SPECTROMETRY AND METHODS OF THE SAME |
摘要 |
In one embodiment, a heterodyne detection system for detecting light includes a first input aperture configured to receive first light from a scene input, a second input aperture configured to receive second light from a local oscillator input, a broadband local oscillator configured to provide the second light to the second input aperture, a dispersive element configured to disperse the first light and the second light, and a final condensing lens coupled to an infrared detector. The final condensing lens is configured to concentrate incident light from a primary condensing lens onto the infrared detector, and the infrared detector is a square-law detector capable of sensing the frequency difference between the first light and the second light. More systems and methods for detecting light are described according to other embodiments. |
申请公布号 |
US2014326884(A1) |
申请公布日期 |
2014.11.06 |
申请号 |
US201414331193 |
申请日期 |
2014.07.14 |
申请人 |
Lawrence Livermore National Security, LLC |
发明人 |
Stevens Charles G.;Tringe Joseph W.;Cunningham Christopher T. |
分类号 |
G01N21/35 |
主分类号 |
G01N21/35 |
代理机构 |
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代理人 |
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主权项 |
1. A heterodyne detection system for detecting light, comprising:
a first input aperture configured to receive first light from a scene input; a second input aperture configured to receive second light from a local oscillator input; a broadband local oscillator configured to provide the second light to the second input aperture; a dispersive element configured to disperse the first light and the second light; and a final condensing lens coupled to an infrared detector, wherein the final condensing lens is configured to concentrate incident light from a primary condensing lens onto the infrared detector, and wherein the infrared detector is a square-law detector configured to sense the frequency difference between the first light and the second light. |
地址 |
Livermore CA US |