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Wednesday, September 13, 2017
US Patent-Real-time detection and imaging of terahertz pulse radiation by using photoacoustic conversion
United States Patent 9759689
Inventor:
Guo, Lingjie Jay (Ann Arbor, MI, US)
http://www.freepatentsonline.com/9759689.html
Methods and devices for high speed detection of terahertz radiation are provided. A photoacoustic transducer receives a pulse of terahertz (THz) radiation. The transducer may comprise a solid, liquid, or semi-solid material. For example, the transducer may be a composite material having a polymer and radiation absorbing particles. The photoacoustic transducer produces an acoustic wave (e.g., an ultrasound wave) in response to receiving the pulse of THz radiation. An acoustic sensor receives the acoustic wave produced by the photoacoustic transducer and thus provides detection of the THz wave.
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