Origin of photo-induced transmitting oscillations in chalcogenide glasses

Haizheng Tao, Zhiyong Yang, Pierre Lucas

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Light-induced oscillatory behaviors of transmission in chalcogenide glasses are investigated using a continuous wave tunable Ti- sapphire laser. It is shown that phase change, thermal fluctuation, nonlinear index change and periodic self focusing are not at the origin of light-induced oscillatory transmittance in chalcogenide glasses. Instead, results indicate that the interference of transmitting and reflecting light is at the origin of the oscillatory behaviors of transmitted light. Just like the principle of Fabry- Perot interferometer, these interferences result in a periodic change in transmission as the related interferential beams get in and out of phase. However, this transmitting oscillatory behavior can be registered by the detector only when the change of optical path length difference initiated by photo-induced effects is slower enough compared with the corresponding response time of the detector. Several photo-structural effects contribute to that phenomenon including photo-expansion, photo-darkening, and permanent self focusing. It appears that fluctuations of the light source intensity induce a wide distribution of the oscillatory periods.

Original languageEnglish (US)
Pages (from-to)18165-18170
Number of pages6
JournalOptics Express
Volume17
Issue number20
DOIs
StatePublished - Sep 28 2009

Fingerprint

oscillations
glass
self focusing
interference
darkening
detectors
Fabry-Perot interferometers
optical paths
continuous radiation
transmittance
light sources
sapphire
expansion
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Origin of photo-induced transmitting oscillations in chalcogenide glasses. / Tao, Haizheng; Yang, Zhiyong; Lucas, Pierre.

In: Optics Express, Vol. 17, No. 20, 28.09.2009, p. 18165-18170.

Research output: Contribution to journalArticle

Tao, Haizheng ; Yang, Zhiyong ; Lucas, Pierre. / Origin of photo-induced transmitting oscillations in chalcogenide glasses. In: Optics Express. 2009 ; Vol. 17, No. 20. pp. 18165-18170.
@article{dde6a28e07ec4ce18513c7130075d9f2,
title = "Origin of photo-induced transmitting oscillations in chalcogenide glasses",
abstract = "Light-induced oscillatory behaviors of transmission in chalcogenide glasses are investigated using a continuous wave tunable Ti- sapphire laser. It is shown that phase change, thermal fluctuation, nonlinear index change and periodic self focusing are not at the origin of light-induced oscillatory transmittance in chalcogenide glasses. Instead, results indicate that the interference of transmitting and reflecting light is at the origin of the oscillatory behaviors of transmitted light. Just like the principle of Fabry- Perot interferometer, these interferences result in a periodic change in transmission as the related interferential beams get in and out of phase. However, this transmitting oscillatory behavior can be registered by the detector only when the change of optical path length difference initiated by photo-induced effects is slower enough compared with the corresponding response time of the detector. Several photo-structural effects contribute to that phenomenon including photo-expansion, photo-darkening, and permanent self focusing. It appears that fluctuations of the light source intensity induce a wide distribution of the oscillatory periods.",
author = "Haizheng Tao and Zhiyong Yang and Pierre Lucas",
year = "2009",
month = "9",
day = "28",
doi = "10.1364/OE.17.018165",
language = "English (US)",
volume = "17",
pages = "18165--18170",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "20",

}

TY - JOUR

T1 - Origin of photo-induced transmitting oscillations in chalcogenide glasses

AU - Tao, Haizheng

AU - Yang, Zhiyong

AU - Lucas, Pierre

PY - 2009/9/28

Y1 - 2009/9/28

N2 - Light-induced oscillatory behaviors of transmission in chalcogenide glasses are investigated using a continuous wave tunable Ti- sapphire laser. It is shown that phase change, thermal fluctuation, nonlinear index change and periodic self focusing are not at the origin of light-induced oscillatory transmittance in chalcogenide glasses. Instead, results indicate that the interference of transmitting and reflecting light is at the origin of the oscillatory behaviors of transmitted light. Just like the principle of Fabry- Perot interferometer, these interferences result in a periodic change in transmission as the related interferential beams get in and out of phase. However, this transmitting oscillatory behavior can be registered by the detector only when the change of optical path length difference initiated by photo-induced effects is slower enough compared with the corresponding response time of the detector. Several photo-structural effects contribute to that phenomenon including photo-expansion, photo-darkening, and permanent self focusing. It appears that fluctuations of the light source intensity induce a wide distribution of the oscillatory periods.

AB - Light-induced oscillatory behaviors of transmission in chalcogenide glasses are investigated using a continuous wave tunable Ti- sapphire laser. It is shown that phase change, thermal fluctuation, nonlinear index change and periodic self focusing are not at the origin of light-induced oscillatory transmittance in chalcogenide glasses. Instead, results indicate that the interference of transmitting and reflecting light is at the origin of the oscillatory behaviors of transmitted light. Just like the principle of Fabry- Perot interferometer, these interferences result in a periodic change in transmission as the related interferential beams get in and out of phase. However, this transmitting oscillatory behavior can be registered by the detector only when the change of optical path length difference initiated by photo-induced effects is slower enough compared with the corresponding response time of the detector. Several photo-structural effects contribute to that phenomenon including photo-expansion, photo-darkening, and permanent self focusing. It appears that fluctuations of the light source intensity induce a wide distribution of the oscillatory periods.

UR - http://www.scopus.com/inward/record.url?scp=70349660231&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349660231&partnerID=8YFLogxK

U2 - 10.1364/OE.17.018165

DO - 10.1364/OE.17.018165

M3 - Article

C2 - 19907606

AN - SCOPUS:70349660231

VL - 17

SP - 18165

EP - 18170

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 20

ER -