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Proceedings Paper

Laser-assisted ablation of corneal-like material using focused femtosecond laser pulses
Author(s): Vikram Kohli; Deli Yu; Abulhakem Y. Elezzabi
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Paper Abstract

In this article we investigate laser-assisted ablation of Hydroxy Ethyl Methacrylate (Hydro-gel) material using 30 femtosecond laser pulses delivered from a Ti:Sapphire multipass amplifier with a repetition rate of 1 kHz. Measurements of the crater depth, width and removed volume as a function of laser pulse energy and pulse number were made for stationary and translated ablation. Based on laser fluence, crater profile, collateral damage and translation speed, optimal laser parameters for efficient micromachining were defined. The results presented in this paper will be important for future developments in laser ophthalmology, where insight into the optimal laser parameters for corneallike surgery will decrease both processing time and collateral tissue damage.

Paper Details

Date Published: 13 March 2007
PDF: 9 pages
Proc. SPIE 6460, Commercial and Biomedical Applications of Ultrafast Lasers VII, 64600D (13 March 2007); doi: 10.1117/12.699247
Show Author Affiliations
Vikram Kohli, Univ. of Alberta (Canada)
Deli Yu, Univ. of Alberta (Canada)
Abulhakem Y. Elezzabi, Univ. of Alberta (Canada)


Published in SPIE Proceedings Vol. 6460:
Commercial and Biomedical Applications of Ultrafast Lasers VII
Joseph Neev; Stefan Nolte; Alexander Heisterkamp; Christopher B. Schaffer, Editor(s)

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