Er:YAG Laser Radiation Applications In Different Medical Branches

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F06%3A00123139" target="_blank" >RIV/68407700:21340/06:00123139 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.675852" target="_blank" >http://dx.doi.org/10.1117/12.675852</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.675852" target="_blank" >10.1117/12.675852</a>

Result language

angličtina

Original language name

Er:YAG Laser Radiation Applications In Different Medical Branches

Original language description

For the purpose of biophotonics, free running and Q-switched Er:YAG lasers were constructed. As Q-switches the rotating mirror and Pockels cell were used. In the case of rotating mirror placed inside the resonator the maximum of generated laser energy was 210 mJ in a free-running mode regime when pulses up to 110 us long (FWHM) were generated. The resulted parameters of the giant pulses were 30 mJ energy, and 250 ns pulse length. For the Pockels cell Q-switching, the laser was generating 325 mJ of energy in a 250 us pulse, and 60 mJ of energy in a 60 ns pulse in the case of free running and Q-switched regime, respectively. This output properties together with the generating wavelength (2.94 um), coinciding exactly with the absorption peak of water, giving us the possibility of using this radiation to the efficient interaction with biological tissue. The transport of the radiation to the interaction place was solved by the special cyclic olefin polymer coated silver hollow glass waveguides with the inner diameter of 700 um and the length of 10 – 50 cm. For the contact treatment the sealed caps were used for preventing delivery system damage. The aim of this work was except of special laser systems development, the investigation of the effect differences between long (free running) and short (nanosecond) laser pulses on ophthalmic (cornea, sclera), urologic (ureter wall), or dental (enamel, dentine) tissue.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Photonics, Devices, and Systems III

ISBN

0-8194-6236-5

ISSN

0277-786X

e-ISSN

—

Number of pages

9

Pages from-to

448-456

Publisher name

SPIE

Place of publication

Bellingham

Event location

Prague

Event date

Jun 8, 2005

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000236543600075