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68‐2: Smart Liquid Crystal Beam Deflector With Laser Ablated Polymer Micro Grating Structure
Author(s) -
Shang Xiaobing,
Desmet Andres,
Joshi Pankaj,
De Smet Jelle,
Cuypers Dieter,
De Smet Herbert
Publication year - 2016
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.10866
Subject(s) - materials science , optics , monochromatic color , grating , deflection (physics) , beam steering , laser , lithography , laser ablation , laser beams , beam (structure) , optoelectronics , liquid crystal , ablation , polymer , composite material , physics , engineering , aerospace engineering
LC beam steering devices are realized using the combination of liquid crystal and polymer micro grating structures. The micro gratings are fabricated by combining two major techniques: laser ablation for a master mold and soft lithography for replicas with the desired optical materials. The LC components demonstrate effective beam deflections with a steering angle of 2.6° for both polarized monochromatic light (deflection efficiency >40%) and unpolarized white light beam (deflection efficiency >30%).