Real-time detection and imaging of terahertz pulse radiation by using photoacoustic conversion
AssigneeThe Regents of the University of Michigan
InventorLingjie Jay Guo
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Abstract
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.
Claims21
A terahertz radiation detection device comprising:
- a photoacoustic transducer configured to receive a pulse of terahertz (THz) radiation, wherein the photoacoustic transducer comprises a THz absorbing material and the photoacoustic transducer produces an acoustic wave in response to receiving the pulse of THz radiation;
- and
- an acoustic sensor configured to receive the acoustic wave produced by the photoacoustic transducer.
A method for detecting terahertz radiation comprising:
- generating an acoustic wave within a photoacoustic transducer by receiving a pulse of terahertz (THz) radiation, wherein the photoacoustic transducer comprises a THz absorbing material;
- and
- detecting the acoustic wave with an acoustic sensor.
Dependencies are inferred from the claim text.