RT Journal Article
T1 Phase-shifting interferometry based on induced vibrations
A1 Quiroga Mellado, Juan Antonio
A1 Vargas Balbuena, Javier
A1 Álvarez Herrero, Alberto
A1 Belenguer Dávila, Tomás
AB The presence of uncontrolled mechanical vibrations is typically the main precision-limiting factor of a phase-shifting interferometer. We present a method that instead of trying to insolate vibrations; it takes advantage of their presence to produce the different phase-steps. The method is based on spatial and time domain processing techniques to compute first the different unknown phase-steps and then reconstruct the phase from these tilt-shifted interferograms. In order to compensate the camera movement, it is needed to perform an affine registration process between the different interferograms. Simulated and experimental results demonstrate the effectiveness of the proposed technique without the use of any phase-shifter device
PB The Optical Society Of America
SN 1094-4087
YR 2011
FD 2011-01-17
LK https://hdl.handle.net/20.500.14352/43932
UL https://hdl.handle.net/20.500.14352/43932
LA eng
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NO ©2011 Optical Society of America
DS Docta Complutense
RD 26 ago 2024