NDLI: Metaadaptive optics

Content Provider	IEEE Xplore Digital Library
Author	Martinez-Cuenca, R. Duran, V. Tajahuerce, E. Lancis, J. Climent, V. Arines, J. Prado, P. Bara, S. Ares, J. Jaroszewicz, Z.
Copyright Year	2011
Description	Author affiliation: Departamento de Física Aplicada, Universidade de Santiago, Santiago de Compostela, Galiza, Spain (Prado, P.; Bara, S.; Ares, J.) \|\| Departamento de Física Aplicada (área de Óptica), Universidad de Zaragoza, Zaragoza, Spain (Arines, J.) \|\| Institute of Applied Optics, Kamionkowska 18, 03-805 Warsaw, Poland, and National Institute of Telecommunications, Szachowa 1, 04-894 Warsaw, Poland (Jaroszewicz, Z.) \|\| Inistitute of New Imaging Technologies (INIT), University Jaume I, Castelló, Spain (Martinez-Cuenca, R.; Duran, V.; Tajahuerce, E.; Lancis, J.; Climent, V.)
Abstract	The evolution of the adaptive optical systems (AOS) based on the use of spatial light modulators (SLMs) is outlined as well as their possible lines of future development. A conventional scheme of AOS consists of two basic units, the wavefront sensor and the wavefront compensator. Recently there appeared AOS relying on the use of only one SLM, which is then programmed as to combine these both functions. Further development of AOS implemented on SLMs would involve a preceding or real-time adaptation of their characteristics for correct dealing with different kind of wavefronts. One of such solutions is to introduce the varifocal lenslets into the Hartmann-Shack sensor, what allows to measure wavefronts of significantly different curvature. Another option is to apply defocus resistant elements, e.g., axicons. This proposal can be improved by including the cancellation of local astigmatism by applying elliptical axicons or elliptical zone plates of adequate ellipticity. In general the whole aberration can be divided in a constant part for which the system acts in the open loop mode and closed loop mode for the remaining variable part.
Starting Page	1
Ending Page	3
File Size	227278
Page Count	3
File Format	PDF
ISBN	9781457712272
e-ISBN	9781457712265
e-ISBN	9781457712258
DOI	10.1109/WIO.2011.5981452
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-19
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimized production technology Modulation Liquid crystal display Optical variables measurement Extraterrestrial measurements Adaptive optics Arrays Optical sensors Optical sensing
Content Type	Text
Resource Type	Article

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