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Proceedings Paper

Investigation of the morphology of the features generated via femtosecond lasers in the interior of a bovine cornea sections
Author(s): Sinisa Vukelic; Panjawat Kongsuwan; Y. Lawrence Yao
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Paper Abstract

Nonlinear absorption of femtosecond laser pulses enables the induction of bubble cavities in the interior of eye cornea without affecting other parts of an eye, a phenomena utilized for flap formation in laser assisted corneal surgery. In the present study laser pulses were focused in the interior of the sections of bovine cornea. Tight focus of the laser pulses results in the plasma formation followed by its explosive expansion, which drives cavity formation. The morphology of the generated features as well as the nature of the physical mechanisms of the phenomenon as a function of process parameters is discussed. Numerical model is proposed to develop predictive capabilities for the feature size and shape and the results are compared against the experimental findings.

Paper Details

Date Published: 15 February 2013
PDF: 10 pages
Proc. SPIE 8579, Optical Interactions with Tissue and Cells XXIV, 857904 (15 February 2013); doi: 10.1117/12.2003349
Show Author Affiliations
Sinisa Vukelic, Bucknell Univ. (United States)
Panjawat Kongsuwan, Columbia Univ. (United States)
Y. Lawrence Yao, Columbia Univ. (United States)

Published in SPIE Proceedings Vol. 8579:
Optical Interactions with Tissue and Cells XXIV
E. Duco Jansen; Robert J. Thomas, Editor(s)

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