Share Email Print
cover

Proceedings Paper

Ablation processing of biomedical materials with femtosecond double-pulse lasers through hollow fibers
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have demonstrated the ablation processing of dry-collagen with double pulsed femtosecond lasers through a bent hollow fiber. Using a 320 μm core-diameter hollow fiber, we have delivered an ultrashort pulse with a pulse width of 200 fs (straight condition), 320 fs (bent condition), and a near Gaussian beam profile. Furthermore, a precise biomedical material processing is obtainable with a transmitted femtosecond laser beam through a bent hollow fiber. The material processing speed is increased using femtosecond double pulses and by optimizing the delay time. The optimal delay time between the double pulses is from 1 ps to 3 ps, because the ablation rate decreased due to a plasma shielding effect beyond a 5 ps delay time. Our results will open up new medical endoscopic applications.

Paper Details

Date Published: 21 March 2005
PDF: 7 pages
Proc. SPIE 5714, Commercial and Biomedical Applications of Ultrafast Lasers V, (21 March 2005); doi: 10.1117/12.589972
Show Author Affiliations
Yoshihiro Hagiwara, Keio Univ. (Japan)
Akihito Hongo, Hitachi Cable, Ltd. (Japan)
Minoru Obara, Keio Univ. (Japan)


Published in SPIE Proceedings Vol. 5714:
Commercial and Biomedical Applications of Ultrafast Lasers V
Joseph Neev; Christopher B. Schaffer; Andreas Ostendorf; Stefan Nolte, Editor(s)

© SPIE. Terms of Use
Back to Top