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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 5 — May. 5, 2009

First-order model of thermal lensing in a virtual eye

Rebecca L. Vincelette, Robert J. Thomas, Benjamin A. Rockwell, Clifton D. Clark, III, and Ashley J. Welch  »View Author Affiliations


JOSA A, Vol. 26, Issue 3, pp. 548-558 (2009)
http://dx.doi.org/10.1364/JOSAA.26.000548


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Abstract

An A B C D beam-propagation method was used to build a first-order mathematical model of a thermal lens effect from a near-infrared laser beam in water and ocular media. The model was found to fit experimental z-scan data best when the thermo-optic coefficient d n d T of liquid water at 292 K was 4.46 × 10 5 K 1 . The physiological parameters of the human eye were simulated in a simple eye model using this fitted d n d T value. Conservative model simulations for 1150 and 1318 nm laser radiation include parameter sets used in experimental ocular exposures performed by Zuclich et al. [Health Phys. 92, 15 (2007)] to illustrate the transient response of the thermal lens approaching the limits of the retinal damage thresholds for equivalent laser radiation sources.

© 2009 Optical Society of America

OCIS Codes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(170.1020) Medical optics and biotechnology : Ablation of tissue
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(330.3350) Vision, color, and visual optics : Vision - laser damage

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: July 29, 2008
Revised Manuscript: December 9, 2008
Manuscript Accepted: December 10, 2008
Published: February 18, 2009

Virtual Issues
Vol. 4, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Rebecca L. Vincelette, Robert J. Thomas, Benjamin A. Rockwell, Clifton D. Clark III, and Ashley J. Welch, "First-order model of thermal lensing in a virtual eye," J. Opt. Soc. Am. A 26, 548-558 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-26-3-548

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