We present a sensitive laser vibrometer using a photo-electromotive force (photo-EMF) sensor and a pulsed light source. This system demonstrates real-time vibration detection on rough surfaces with displacements as small as 180 pm.
© 2006 Optical Society of America
(090.0090) Holography : Holography
(090.2880) Holography : Holographic interferometry
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
P. Rodriguez, S. Trivedi, F. Jin, J. Lorenzo, C. Wang, Z. Chen, J. Khurgin, B. Libbey, and J. Habersat, "High Sensitivity Pulsed Laser Vibrometer for Surface Vibration Monitoring," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CMII6.