Laser-assisted ablation of corneal-like material using focused femtosecond laser pulses

Vikram Kohli; Deli Yu; Abulhakem Y. Elezzabi

doi:10.1117/12.699247

13 March 2007 Laser-assisted ablation of corneal-like material using focused femtosecond laser pulses

Vikram Kohli, Deli Yu, Abulhakem Y. Elezzabi

Proceedings Volume 6460, Commercial and Biomedical Applications of Ultrafast Lasers VII; 64600D (2007) https://doi.org/10.1117/12.699247
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

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.

Citation Download Citation

Vikram Kohli, Deli Yu, and Abulhakem Y. Elezzabi "Laser-assisted ablation of corneal-like material using focused femtosecond laser pulses", Proc. SPIE 6460, Commercial and Biomedical Applications of Ultrafast Lasers VII, 64600D (13 March 2007); https://doi.org/10.1117/12.699247

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