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Opt Lett. 2010 Jul 15;35(14):2406-8. doi: 10.1364/OL.35.002406.

Reconfigurable all-diffractive optical filters using phase-only spatial light modulators.

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  • 1Grup De Recerca d'Optica de Castelló, Departament de Física, Universitat Jaume I, 12080 Castelló, Spain. gminguez@uji.es

Abstract

We demonstrate a reconfigurable optical filter implemented using a phase-only two-dimensional liquid-crystal-on-silicon spatial light modulator. To achieve this we utilize two different approaches leading to two different configurations in the modulator. The first one, based on a spatially patterned diffractive lens, permits us to obtain the desired spectrum along the optical axis and, in the second one, which is based on a generalized spectrometer, the desired spectrum is found outside of the optical axis. Experimental results show good agreement with the theory and indicate the validity of this technique.

PMID:
20634845
[PubMed]
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