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Milewski, G. (2005) Design and evaluation of phase-deviation sensitive DOEs with possible application in SLM characterization. Göteborg : Chalmers University of Technology
BibTeX
@mastersthesis{
Milewski2005,
author={Milewski, Gabriel},
title={Design and evaluation of phase-deviation sensitive DOEs with possible application in SLM characterization},
abstract={The spatial light modulator (SLM) is a component which permits dynamic phase and/or amplitude shaping of the cross section of a light beam. Thanks to a high efficiency, its wide range of applications includes e.g. optical beam steering and applications in signal processing.
This Master thesis presents a method for designing pixelated diffractive optical elements (DOEs) producing spots whose intensities are optimized to heavily depend on a particular phase modulation level. A theoretical expression for the sensitivity is derived and both simulations as well as experiments show that the achieved sensitivities are several times higher than when using conventional, intensity-maximizing, DOE design methods. Eventually, a non-interferometric way of determining the phase modulation characteristics of an 8-bit SLM unit using these DOEs is suggested. The results in one case show an agreement within 20◦ with measurements made by interferometry. As the method is subjected to a different setting of the SLM unit yielding a higher residual amplitude modulation, interferometry and phase retrieval using DOEs agree to a lesser extent.},
publisher={Institutionen för mikroteknologi och nanovetenskap, Fotonik, Chalmers tekniska högskola},
place={Göteborg},
year={2005},
keywords={diffractive optical element, phase measurement, interferometry},
note={44},
}
RefWorks
RT Generic
SR Print
ID 18547
A1 Milewski, Gabriel
T1 Design and evaluation of phase-deviation sensitive DOEs with possible application in SLM characterization
YR 2005
AB The spatial light modulator (SLM) is a component which permits dynamic phase and/or amplitude shaping of the cross section of a light beam. Thanks to a high efficiency, its wide range of applications includes e.g. optical beam steering and applications in signal processing.
This Master thesis presents a method for designing pixelated diffractive optical elements (DOEs) producing spots whose intensities are optimized to heavily depend on a particular phase modulation level. A theoretical expression for the sensitivity is derived and both simulations as well as experiments show that the achieved sensitivities are several times higher than when using conventional, intensity-maximizing, DOE design methods. Eventually, a non-interferometric way of determining the phase modulation characteristics of an 8-bit SLM unit using these DOEs is suggested. The results in one case show an agreement within 20◦ with measurements made by interferometry. As the method is subjected to a different setting of the SLM unit yielding a higher residual amplitude modulation, interferometry and phase retrieval using DOEs agree to a lesser extent.
PB Institutionen för mikroteknologi och nanovetenskap, Fotonik, Chalmers tekniska högskola,
LA eng
OL 30
