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Proceedings Paper

High resolution 2D image upconversion of incoherent light
Author(s): Jeppe Seidelin Dam; Christian Pedersen; Peter Tidemand-Lichtenberg
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Paper Abstract

An optimized method for continuous wave 2-dimensional (2-D) upconversion of incoherent or thermal light is demonstrated and quantified. Using standard resolution targets a resolution of 200x1000 pixels is obtained. The suggested method is viewed in scope of modern CCD cameras operating in the near infrared (NIR) portion of the electromagnetic spectrum. The key is optimization of the upconversion process. This include Quasi-Phase-Matching leading to higher effective nonlinearities and elimination of walk-off, an intra-cavity design enhancing the upconversion process, and finally the use of modern NIR CCD detectors. Furthermore, we discuss the exceptionally good depth of field possible for imaging systems based on the proposed method.

Paper Details

Date Published: 21 February 2011
PDF: 6 pages
Proc. SPIE 7917, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, 791713 (21 February 2011); doi: 10.1117/12.873790
Show Author Affiliations
Jeppe Seidelin Dam, Technical Univ. of Denmark (Denmark)
Christian Pedersen, Technical Univ. of Denmark (Denmark)
Peter Tidemand-Lichtenberg, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 7917:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X
Konstantin L. Vodopyanov, Editor(s)

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