Lohner, A. and Huber, M. and Ganichev, Sergey D. and Prettl, Wilhelm and Niederdellmann, H. (2000) Visible light emission due to resonant CO2 laser excitation of dental hard tissue. INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 21 (3). pp. 407-419. ISSN 0195-9271
Full text not available from this repository.Abstract
Visible light emission of dental hard substances excited by high-power infrared pulses of a tunable TEA CO2 laser has been investigated. A clear correlation between observed visible light emission, plasma formation as well as ablation of dental hard tissue has been demonstrated, Both, the highly nonlinear infrared to visible upconversion process and the ablation efficiency show a sharp spectral resonance close to a vibrational mode of PO4 at 1090 cm(-1) in dental enamel and dentin. The influence of strong infrared light impulses on dental hard tissue is examined by performing upconversion studies of visible light emission of human dental enamel and dentin. Our experimental setup allows one to determine the plasma formation threshold being: important in dental surgery.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ABLATION MECHANISM; PULSE DURATION; ENAMEL; CO2 laser; hydroxyapatite; infrared absorption; laser ablation; plasma threshold; PO4 mode; upconversion |
| Subjects: | 500 Science > 530 Physics 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Mund-, Kiefer- und Gesichtschirurgie Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 31 May 2022 10:41 |
| Last Modified: | 31 May 2022 10:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42785 |
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