发明名称 |
ELECTRO-OPTICAL AND MAGNETO-OPTICAL SENSING APPARATUS AND METHOD FOR CHARACTERIZING FREE-SPACE ELECTROMAGNETIC RADIATION |
摘要 |
Apparatus and methods for characterizing free-space electromagnetic energy, and in particular, apparatus/method suitable for real-time two-dimensional far-infrared imaging applications are presented. The sensing technique is based on a non-linear coupling between a low-frequency electric (or magnetic) field and a laser beam in an electro-optic (or magnetic-optic) crystal. In addition to a practical counter-propagating sensing technique, a co-linear approach is described which provides longer radiated field-optical beam interaction length, thereby making imaging applications practical. |
申请公布号 |
EP0902896(A1) |
申请公布日期 |
1999.03.24 |
申请号 |
EP19970926803 |
申请日期 |
1997.05.30 |
申请人 |
RENSSELAER POLYTECHNIC INSTITUTE |
发明人 |
ZHANG, XI-CHENG;LIBELO, LOUIS, FRANCIS;WU, QI;RIORDAN, JENIFER, ANN;SUN, FENG-GUO |
分类号 |
G01R33/032;G01J4/00;G01N21/21;G01N21/35;G01R29/08;G01R31/302 |
主分类号 |
G01R33/032 |
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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