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Proceedings Paper

Tuned alexandrite laser for dentistry
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Paper Abstract

A tunable solid state laser system has been developed emitting visible light in the region from 710 to 775 nm, which can be used for medical applications. The laser head of this system is composed of alexandrite crystal rod, two dielectric mirrors, and a tuning element. The maximum reached output energy in the free running multimode regime was 400 mJ with the pulse duration of 70 micrometers . The output laser radiation was guided via a multimode quartz fiber or via a special fluorocarbon polymer-coated silver hollow glass waveguide. At first, this radiation with laser fluency of 2.5 J/cm2 was used for the ablation of dental calculus. Next, the laser radiation propagation in the root canal and its effect on bacteria was proved. The dissipated energy measurement was made inside and outside the tooth. Hence, the alexandrite laser could be useful for medical applications in dentistry.

Paper Details

Date Published: 29 December 1999
PDF: 6 pages
Proc. SPIE 4016, Photonics, Devices, and Systems, (29 December 1999);
Show Author Affiliations
Jan Sulc, Czech Technical Univ. (Czech Republic)
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Tatjana Dostalova M.D., Institute of Dental Research (Czech Republic)
Mitsunobu Miyagi, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4016:
Photonics, Devices, and Systems
Miroslav Hrabovsky; Pavel Tomanek; Miroslav Miler, Editor(s)

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