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Proceedings Paper

Agile wavefront splitting interferometry and imaging using a digital micromirror device
Author(s): Juan Pablo La Torre; M. Junaid Amin; Nabeel A. Riza
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Paper Abstract

Since 1997, we have proposed and demonstrated the use of the Texas Instrument (TI) Digital Micromirror Device (DMD) for various non-display applications including optical switching and imaging. In 2009, we proposed the use of the DMD to realize wavefront splitting interferometers as well as a variety of imagers. Specifically, proposed were agile electronically programmable wavefront splitting interferometer designs using a Spatial Light Modulator (SLM) such as (a) a transmissive SLM, (b) a DMD SLM and (c) a Beamsplitter with a DMD SLM. The SLMs operates with on/off or digital state pixels, much like a black and white state optical window to control passage/reflection of incident light. SLM pixel locations can be spatially and temporally modulated to create custom wavefronts for near-common path optical interference at the optical detectors such as a CCD/CMOS sensor, a Focal Plane Array (FPA) sensor or a point-photodetector. This paper describes the proposed DMD-based wavefront splitting interferometer and imager designs and their relevant experimental results.

Paper Details

Date Published: 29 April 2016
PDF: 12 pages
Proc. SPIE 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV, 98960B (29 April 2016); doi: 10.1117/12.2228373
Show Author Affiliations
Juan Pablo La Torre, Univ. College Cork (Ireland)
M. Junaid Amin, Univ. College Cork (Ireland)
Nabeel A. Riza, Univ. College Cork (Ireland)

Published in SPIE Proceedings Vol. 9896:
Optics, Photonics and Digital Technologies for Imaging Applications IV
Peter Schelkens; Touradj Ebrahimi; Gabriel Cristóbal; Frédéric Truchetet; Pasi Saarikko, Editor(s)

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