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27 February 2018 Large angle nonmechanical laser beam steering at 4.6  μm using a digital micromirror device
James R. Lindle, Abbie T. Watnik
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Optical Engineering, Vol. 57, Issue 2, 027108 (February 2018). https://doi.org/10.1117/1.OE.57.2.027108
Abstract
Large angle, nonmechanical beam steering is demonstrated at 4.62  μm using the digital light processing technology. A 42-deg steering range is demonstrated, limited by the field-of-view of the recollimating lens. The measured diffraction efficiency is 8.1% on-axis and falls-off with a sin2 dependence with the steering angle. However, within the 42-deg steering range, the power varied less than 25%. The profile of the steered laser beam is Gaussian with a divergence of 5.2 mrad. Multibeam, randomly addressable beam steering, is also demonstrated.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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James R. Lindle and Abbie T. Watnik "Large angle nonmechanical laser beam steering at 4.6  μm using a digital micromirror device," Optical Engineering 57(2), 027108 (27 February 2018). https://doi.org/10.1117/1.OE.57.2.027108
Received: 26 October 2017; Accepted: 30 January 2018; Published: 27 February 2018
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Cited by 5 scholarly publications.
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KEYWORDS
Digital Light Processing
Binary data
Mirrors
Beam steering
Spatial light modulators
Mid-IR
Reflectivity
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