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Optics Letters

Optics Letters


  • Vol. 36, Iss. 5 — Mar. 1, 2011
  • pp: 642–644

Carrier fringes in the two-aperture common-path interferometer

Cruz Meneses-Fabian and Gustavo Rodriguez-Zurita  »View Author Affiliations

Optics Letters, Vol. 36, Issue 5, pp. 642-644 (2011)

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We present a method to introduce a linear phase into an interference pattern. This phase is introduced when a grating is placed outside of the Fourier plane of a two-aperture common-path interferometer, which is built using a 4 f optical imaging system. Based on an analysis of near-field diffraction, the introduction of the carrier fringes is mathematically justified. It is important to note that no tilt between the two beams is requested to produce this effect, and it turns out to be simpler, easier, and more versatile than other existing methods. The main attributes and advantages of the setup will be discussed and illustrated in detail with experimental fringe patterns.

© 2011 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(260.1960) Physical optics : Diffraction theory
(260.3160) Physical optics : Interference
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: November 17, 2010
Revised Manuscript: January 12, 2011
Manuscript Accepted: January 13, 2011
Published: February 22, 2011

Cruz Meneses-Fabian and Gustavo Rodriguez-Zurita, "Carrier fringes in the two-aperture common-path interferometer," Opt. Lett. 36, 642-644 (2011)

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