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

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

2010-04-16

arxiv.org/abs/1004.2875v2

Gladys M\'inguez-Vega, V. R. Supradeepa, Omel Mendoza-Yero, and Andrew M. Weiner, Opt. Lett. 35, 2406-2408 (2010)

Physics

Optics

14 pages, 3 figures, replaced the older version with a newer published version

Scientific paper

10.1364/OL.35.002406

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 to obtain the desired spectrum along the optical axis and, in the second one, based on a generalized spectrometer, it is found outside of the optical axis. Experimental results show good agreement with the theory and indicate the validity of this technique.

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