Model-based compensation of pixel crosstalk in liquid crystal spatial light modulators.

Spatial light modulators (SLMs) based on liquid crystals are widely used for wavefront shaping. Their large number of pixels allows one to create complex wavefronts. The crosstalk between neighboring pixels, also known as fringing field effect, however, can lead to strong deviations. The realized wavefront may deviate significantly from the prediction based on the idealized assumption that the response across a pixel is uniform and independent of its neighbors. Detailed numerical simulations of the SLM response based on a full 3D physical model accurately match the measured response and properly model the pixel crosstalk. The full model is then used to validate a simplified model that enables much faster crosstalk evaluation and pattern optimization beyond standard performance. General conclusions on how to minimize crosstalk in liquid crystal on silicon (LCoS) SLM systems are derived, as well as a readily accessible estimation of the amount of fringing in a given SLM.

[1]  J R Fienup,et al.  Phase retrieval algorithms: a comparison. , 1982, Applied optics.

[2]  M. Goksör,et al.  Reducing the effect of pixel crosstalk in phase only spatial light modulators. , 2012, Optics express.

[3]  Monika Ritsch-Marte,et al.  Speeding up liquid crystal SLMs using overdrive with phase change reduction. , 2013, Optics express.

[4]  Lars Sjöqvist,et al.  Fringing fields in a liquid crystal spatial light modulator for beam steering , 2004 .

[5]  Valentina Emiliani,et al.  Recent advances in patterned photostimulation for optogenetics , 2017 .

[6]  Wolfgang Osten,et al.  Optimizing the diffraction efficiency of SLM-based holography with respect to the fringing field effect. , 2013, Applied optics.

[7]  T. Hashimoto,et al.  Analysis and suppression of high-order diffractions in liquid-crystal-based spatial light modulator for photonic switch application , 2017 .

[8]  Valentina Emiliani,et al.  LCoS nematic SLM characterization and modeling for diffraction efficiency optimization, zero and ghost orders suppression. , 2012, Optics express.

[9]  Boris N. Chichkov,et al.  Parallel direct laser writing of micro-optical and photonic structures using spatial light modulator , 2015 .

[10]  S. Bernet,et al.  What spatial light modulators can do for optical microscopy , 2011 .

[11]  Bin Wang,et al.  Finite-difference time-domain simulation of a liquid-crystal optical phased array. , 2005, Journal of the Optical Society of America. A, Optics, image science, and vision.

[12]  Clemens Roider,et al.  Tilt-effect of holograms and images displayed on a spatial light modulator. , 2015, Optics express.

[13]  Alexander Jesacher,et al.  Colour hologram projection with an SLM by exploiting its full phase modulation range. , 2014, Optics express.

[14]  M. Padgett,et al.  Optical tweezers: a light touch , 2012, Journal of microscopy.

[15]  Andrew Forbes,et al.  Beyond the display: phase-only liquid crystal on Silicon devices and their applications in photonics [Invited]. , 2019, Optics express.

[16]  Alexander Jesacher,et al.  How to use a phase-only spatial light modulator as a color display. , 2015, Optics letters.

[17]  Antoine Browaeys,et al.  Synthetic three-dimensional atomic structures assembled atom by atom , 2017, Nature.

[18]  Alexander Jesacher,et al.  Adaptive optics for direct laser writing with plasma emission aberration sensing. , 2010, Optics express.

[19]  A. Jesacher,et al.  Synthetic holography in microscopy: opportunities arising from advanced wavefront shaping , 2016 .

[20]  Fringing fields in a liquid crystal spatial light modulator for beam steering , 2004 .

[21]  Eldad Bahat Treidel,et al.  Fringing-field effect in liquid-crystal beam-steering devices: an approximate analytical model. , 2004, Journal of the Optical Society of America. A, Optics, image science, and vision.

[22]  Brian Robertson,et al.  Pixel-level fringing-effect model to describe the phase profile and diffraction efficiency of a liquid crystal on silicon device. , 2015, Applied optics.

[23]  Eldad Bahat Treidel,et al.  On the fringing-field effect in liquid-crystal beam-steering devices. , 2004, Applied optics.

[24]  James R Fienup,et al.  Applications of algorithmic differentiation to phase retrieval algorithms. , 2014, Journal of the Optical Society of America. A, Optics, image science, and vision.