Two photon absorption and photoconductivity in photosensitive glasses

Two photon absorption and photoconductivity in photosensitive glasses

In this paper we present experimental evidence for the creation of defects in Ge doped silica by exposure to intense visible or UV light. The presence of the defects is detected by an increase in two photon absorption at 1053 nm and an increase in photoconductivity at 488 nm. This provides evidence...

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Hauptverfasser: Weitzman, P.S., Osterberg, U.
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Sprache:eng
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Area measurement
Electromagnetic wave absorption
Equations
Fiber lasers
Glass
Interference
Photoconductivity
Power measurement
Silicon compounds
Wavelength measurement
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description In this paper we present experimental evidence for the creation of defects in Ge doped silica by exposure to intense visible or UV light. The presence of the defects is detected by an increase in two photon absorption at 1053 nm and an increase in photoconductivity at 488 nm. This provides evidence to support models for photoinduced second harmonic generation based on interference between single photon absorption of visible light and two photon absorption of IR light. In as much as photoinduced SHG has been observed in many other glass systems, results from this paper can be generalized to provide a picture of photoinduced SHG in solid, centrosymmetric systems.
doi_str_mv 10.1109/LEOS.1994.586360
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subjects Area measurement
Electromagnetic wave absorption
Equations
Fiber lasers
Glass
Interference
Photoconductivity
Power measurement
Silicon compounds
Wavelength measurement
title Two photon absorption and photoconductivity in photosensitive glasses
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