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Proceedings Paper

Thermal lensing from near-infrared laser radiation in an artificial eye
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Paper Abstract

A confocal imaging system mounted to a micrometer stage was used to image the thermal lens induced into a water filled Cain-cell artificial eye. A dual-beam pump-probe geometry was used to quantify the 633-nm visible wavelength probe beam's transient response when exposed to the near-infrared pump-beam source. The infrared laser radiation wavelengths tested were 1110, 1130, 1150 and 1318 nm for 1-s exposures to 450-mW of power. Analysis of video data revealed the amount of refractive shift, induced by the thermal lens, as a function of time. Data demonstrate how the formation and dissipation of the thermal lens follow a logarithmic excitation and exponential decay in time respectively. Confocal imaging showed that thermal lensing was strongest for the 1150-nm wavelength followed by 1130, 1318 and 1110-nm.

Paper Details

Date Published: 25 February 2009
PDF: 9 pages
Proc. SPIE 7175, Optical Interactions with Tissue and Cells XX, 71750I (25 February 2009); doi: 10.1117/12.807971
Show Author Affiliations
Rebecca Vincelette, The Univ. of Texas at Austin (United States)
Jeff Oliver, Air Force Research Lab. (United States)
Benjamin Rockwell, Air Force Research Lab. (United States)
Robert Thomas, Air Force Research Lab. (United States)
Ashley J. Welch, The Univ. of Texas at Austin (United States)

Published in SPIE Proceedings Vol. 7175:
Optical Interactions with Tissue and Cells XX
Steven L. Jacques; E. Duco Jansen; William P. Roach, Editor(s)

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