Hollow-core photonic-crystal fibres for laser dentistry

Hollow-core photonic-crystal fibres (PCFs) for the delivery of high-fluence laser radiation capable of ablating tooth enamel are developed. Sequences of picosecond pulses of 1.06 microm Nd:YAG-laser radiation with a total energy of about 2 mJ are transmitted through a hollow-core photonic-crystal fi...

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Bibliographic Details
Published in:Physics in medicine & biology 2004-04, Vol.49 (7), p.1359-1368
Main Authors: Konorov, Stanislav O, Mitrokhin, Vladimir P, Fedotov, Andrei B, Sidorov-Biryukov, Dmitrii A, Beloglazov, Valentin I, Skibina, Nina B, Wintner, Ernst, Scalora, Michael, Zheltikov, Aleksei M
Format: Article
Language:English
Subjects:
Crystallization - methods
Dental Enamel - pathology
Dental Enamel - radiation effects
Dental Enamel - surgery
Dose-Response Relationship, Radiation
Equipment Failure Analysis
Fiber Optic Technology - instrumentation
Fiber Optic Technology - methods
Humans
In Vitro Techniques
Laser Therapy - instrumentation
Laser Therapy - methods
Lasers
Oral Surgical Procedures - instrumentation
Oral Surgical Procedures - methods
Porosity
Scattering, Radiation
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Summary:Hollow-core photonic-crystal fibres (PCFs) for the delivery of high-fluence laser radiation capable of ablating tooth enamel are developed. Sequences of picosecond pulses of 1.06 microm Nd:YAG-laser radiation with a total energy of about 2 mJ are transmitted through a hollow-core photonic-crystal fibre with a core diameter of approximately 14 microm and are focused on a tooth surface in vitro to ablate dental tissue. The hollow-core PCF is shown to support the single-fundamental-mode regime for 1.06 microm laser radiation, serving as a spatial filter and allowing the laser beam quality to be substantially improved. The same fibre is used to transmit emission from plasmas produced by laser pulses on the tooth surface in the backward direction for detection and optical diagnostics.
ISSN:0031-9155
1361-6560
DOI:10.1088/0031-9155/49/7/021