Heterodyne detection of ultrasound from rough surfaces using a double phase conjugate mirror | Zendy

Philippe Delaye | Zendy; Alain Blouin | Zendy; Denis Drolet | Zendy; JeanPierre Monchalin | Zendy

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Heterodyne detection of ultrasound from rough surfaces using a double phase conjugate mirror

Author(s) -

Philippe Delaye,

Alain Blouin,

Denis Drolet,

JeanPierre Monchalin

Publication year - 1995

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.114888

Subject(s) - optics , wavefront , phase conjugation , heterodyne (poetry) , interferometry , phase (matter) , heterodyne detection , physics , laser , adaptive optics , transmission (telecommunications) , beam (structure) , ultrasound , deformable mirror , materials science , acoustics , computer science , telecommunications , quantum mechanics

International audienceWe present an improved version of the classical heterodyne interferometer for ultrasound detection, which includes a double phase conjugate mirror (DPCM) in the detection arm. The DPCM performs wave front adaptation to plane wave of the speckled beam scattered by the rough surface of the sample. The performances of the system are analyzed regarding the transmission (~30%) and fidelity (~70%) of the phase conjugation and the response time and etendue of the device. An example of application to the detection of laser generated ultrasound is also presented

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