308nm Laser Ablation Via Fiberoptics: The Influence Of Pressure And Repetition Rate.

Thanassis Papaioannou; Weiqiang Shi; Ko Arakawa; Theodore Papazoglou; Frank Litvack; Warren Grundfest

doi:10.1117/12.952132

15 June 1989 308nm Laser Ablation Via Fiberoptics: The Influence Of Pressure And Repetition Rate.

Thanassis Papaioannou, Weiqiang Shi, Ko Arakawa, Theodore Papazoglou, Frank Litvack, Warren Grundfest

Proceedings Volume 1067, Optical Fibers in Medicine IV; (1989) https://doi.org/10.1117/12.952132
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Excimer laser ablation (308nm) of canine aortic samples was performed via an UV grade fused silica fiber. The influence of the repetition rate (2-20 Hz) and of the applied pressure (1-6 Atm) on the ablation rate was studied. Operative fluences between 30mJ/mm² to 40mJ/mm² were used. Results show a linear dependence of the ablation rate on the repetition rate for all fluences. The linearity was also preserved at various applied pressures and at low repetition rates for the same range of fluences. A saturation effect was observed at increased values of repetition rate. No dependence of the ablation rate on the repetition rate was observed when the experiment was performed using direct irradiation with a mask instead of a fiberoptic.

Citation Download Citation

Thanassis Papaioannou, Weiqiang Shi, Ko Arakawa, Theodore Papazoglou, Frank Litvack, and Warren Grundfest "308nm Laser Ablation Via Fiberoptics: The Influence Of Pressure And Repetition Rate.", Proc. SPIE 1067, Optical Fibers in Medicine IV, (15 June 1989); https://doi.org/10.1117/12.952132

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