Phase-object detection by use of double-exposure fringe-modulated speckle patterns
Fecha
2003-01
Autores
Tebaldi, Myrian
Trivi, Marcelo
Bolognini, Néstor
Angel-Toro, Luciano
Tebaldi, Myrian
Trivi, Marcelo
Bolognini, Néstor
Angel-Toro, Luciano
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OSA
Resumen
We study the properties of a double-exposure image specklegram of a diffuse object obtained by use of a doubleaperture pupil. A phase object is placed in front of one aperture during the first or the second exposure. Also, it is assumed that a uniform displacement of the diffuser between exposures is produced. The recorded specklegram is coherently illuminated and analyzed by Fourier transform operations. The average intensity distribution and the interference fringe visibility in the Fourier plane are investigated. On this basis, an alternative interference technique to detect phase objects is proposed.
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Myrian Tebaldi, Luciano Ángel, Marcelo Trivi, and Néstor Bolognini, "Phase-object detection by use of double-exposure fringe-modulated speckle patterns," J. Opt. Soc. Am. A 20, 116-129 (2003).http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-1-116