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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 32 — Nov. 10, 2006
  • pp: 8244–8252

Chromatic confocal spectral interferometry

Evangelos Papastathopoulos, Klaus Körner, and Wolfgang Osten  »View Author Affiliations


Applied Optics, Vol. 45, Issue 32, pp. 8244-8252 (2006)
http://dx.doi.org/10.1364/AO.45.008244


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Abstract

Chromatic confocal spectral interferomertry (CCSI) is a novel scheme for topography measurements that combines the techniques of spectral interferometry and chromatic confocal microscopy. This hybrid method allows for white-light interferometric detection with a high NA in a single-shot manner. To the best of our knowledge, CCSI is the first interferometric method that utilizes a confocally filtered and chromatically dispersed focus for detection and simultaneously allows for retrieval of the depth position of reflecting or scattering objects utilizing the phase (modulation frequency) of the interferometric signals acquired. With the chromatically dispersed focus, the depth range of the sensor is decoupled from the NA of the microscope objective.

© 2006 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(180.1790) Microscopy : Confocal microscopy
(180.3170) Microscopy : Interference microscopy
(180.6900) Microscopy : Three-dimensional microscopy

ToC Category:
Interferometry

History
Original Manuscript: May 16, 2006
Revised Manuscript: July 17, 2006
Manuscript Accepted: July 18, 2006

Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Evangelos Papastathopoulos, Klaus Körner, and Wolfgang Osten, "Chromatic confocal spectral interferometry," Appl. Opt. 45, 8244-8252 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-32-8244


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