发明名称 |
Detecting infrared radiation |
摘要 |
According to one embodiment, detecting radiation includes receiving a first laser drive field at a cell comprising a medium having a number of states. The first laser drive field has a frequency approximately equivalent to a transition frequency between a first state and a second state. A second laser drive field having a frequency approximately equivalent to a transition frequency between the first state and a third state, and an infrared field having a frequency approximately equivalent to a transition frequency between the third state and a fourth state are received. The medium has a transition between the second state and the third state substantially forbidden to support optimal coherence on the transition between the second state and the third state. The infrared field is upconverted to generate a detectable field having a frequency approximately equivalent to a transition frequency between the second state and the fourth state.
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申请公布号 |
US6730910(B1) |
申请公布日期 |
2004.05.04 |
申请号 |
US20010003655 |
申请日期 |
2001.10.31 |
申请人 |
THE TEXAS A&M UNIVERSITY SYSTEM |
发明人 |
BOYD ROBERT W.;HADEN CLOVIS R.;SCULLY MARLAN O.;KOCHAROVSKY VITALY;BELYANIN ALEXEY |
分类号 |
G01J1/00;G01J5/10;(IPC1-7):G01J5/00 |
主分类号 |
G01J1/00 |
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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