نتایج جستجو برای: spatial light modulator

تعداد نتایج: 757510  

Journal: :Optics express 2012
C Stockbridge Y Lu J Moore S Hoffman R Paxman K Toussaint T Bifano

We demonstrate steady-state focusing of coherent light through dynamic scattering media. The phase of an incident beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator, using a coordinate descent optimization technique. We achieve focal intensity enhancement of between 5 and 400 for dynamic media with speckle decorrelation time constants ...

2014
XIAOLONG ZHANG Peter Kner Xiaolong Zhang Peter A. Kner Mark A. Haidekker William S. Kisaalita Julie Coffield

SCATTERING MEDIA by XIAOLONG ZHANG (Under the Direction of Peter Kner) ABSTRACT Random light scattering in inhomogeneous media causes strong wavefront aberrations and makes it impossible to focus light. Many wavefront correction techniques have been recently demonstrated to control light propagation in these media. Phase modulation with a spatial light modulator (SLM) and digital light modulato...

1995
A. Efimov D. H. Reitze

We have used a commercially available liquid-crystal spatial light modulator within a reflective optics pulse-shaping apparatus to shape ultrashort pulses with temporal resolution approaching 10 fs. Using the spatial light modulator as a phase modulator, we produce a variety of complex ultrafast waveforms, including odd pulses, high repetition rate (.23 THz) pulse trains, and asymmetric pulse t...

2004
Robert W. Cohn

A new 512 512 pixel phase-only spatial light modulator SLM has been found to deviate from being flat by several wavelengths. Also, the retardation of the SLM relative to voltage varies across the device by as much as 0.25 wavelength. The birefringence of each pixel as a function of address voltage is measured from the intensity of the SLM between crossed polarizers. To these responses are added...

2007
Michael Simon

Faraday rotators that employ the magneto-optic effect are ubiquitous across several optical device categories: including optical isolators, polarization controllers, and spatial light modulators. However, Faraday rotators are notoriously difficult to fabricate at small scales due to the high magnetic field strengths required to generate significant light polarization vector rotations. In this p...

Journal: :International journal of optics and photonics 2022

Evaluation of Diffraction Orders Efficiency Laguerre-Gaussian Beam Generated by the Phase and Amplitude Fork Grating Applied on Spatial Light Modulator

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