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Applied Optics

Applied Optics


  • Vol. 40, Iss. 7 — Mar. 1, 2001
  • pp: 1044–1048

Fast one-dimensional profilometer with a compact disc pickup

Alessandro Bartoli, Pasquale Poggi, Franco Quercioli, and Bruno Tiribilli  »View Author Affiliations

Applied Optics, Vol. 40, Issue 7, pp. 1044-1048 (2001)

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The use of compact disc (CD) pickups in optical profilometry is a well-established practice. The instruments currently available on the market are, however, expensive both to purchase and to maintain. This expense is mainly due to the high cost of the scanning system, and it makes the use of low-cost pickups fruitless. Moreover, translation stages are bulky, slow, and in most applications neither necessary nor desirable. We present a one-dimensional profilometer, which uses a CD pickup as both the sensor and the actuator. Beam scanning of the sample is in fact performed by the objective lens tracking motor. The device is cheap, fast, compact, light, and a valuable solution for fluid and hard-to-access surface profiling.

© 2001 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.6660) Instrumentation, measurement, and metrology : Surface measurements, roughness

Original Manuscript: May 16, 2000
Revised Manuscript: August 29, 2000
Published: March 1, 2001

Alessandro Bartoli, Pasquale Poggi, Franco Quercioli, and Bruno Tiribilli, "Fast one-dimensional profilometer with a compact disc pickup," Appl. Opt. 40, 1044-1048 (2001)

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