Optical Lock-in Vibration Detection Using Photorefractive Four-Wave Mixing

  • Tom Chatters
  • Ken Telschow


Many important applications for photorefractive crystals (PRCs) have been found recently by various investigators [1–3]. These applications range from volumetric information storage in optical computing to adaptive, remote detection of ultrasonic vibration in optical nondestructive evaluation [4]. In this paper, we propose the use of PRCs for lock-in detection of continuously vibrating structures.


Reference Beam Signal Beam Photorefractive Crystal Local Refractive Index Vibration Detection 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Tom Chatters
    • 1
  • Ken Telschow
    • 1
  1. 1.Idaho National Engineering LaboratoryLockheed Idaho Technologies Co.Idaho FallsUSA

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