Inorganic glasses as Kerr-like media

Jha, Animesh; Liu, X.; Kar, A. K.; Bookey, Henry T.

doi:10.1016/s1359-0286(02)00009-8

Cited by 25 publications

(19 citation statements)

References 24 publications

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“…That is, the semiconductor concept seems to be applied as a rough approximation to glasses and amorphous films. 1/E g 3 , with experimental data for non-crystalline solids [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Here, for most of the materials with E g ≳ 2 eV, we see rough agreements.…”

Section: Comparisonsupporting

confidence: 69%

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Nonlinear optics in glasses: How can we analyze?

Tanaka

2007

Journal of Physics and Chemistry of Solids

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Maximal optical nonlinearity obtainable in amorphous materials at telecommunication wavelengths of ~1.5 μm is predicted. Applying a semiconductor concept, we suggest that nonlinear properties become greater in the materials with smaller optical gaps. This trend makes the chalcogenide glass such as As 2 Se 3 promising for fiber devices (~1 m) including optical switches, intensity stabilizers, and stimulated Raman amplifiers. However, for integrated devices with optical path lengths of ~1 cm, greater nonlinearity is needed.

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Section: Comparisonsupporting

confidence: 69%

“…2 compares the theoretical nonlinear spectra, G and F, with reported n 2 and β values [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] for non-crystalline solids. For some materials, data obtained at different ħω are included.…”

Section: Comparisonmentioning

confidence: 99%

Nonlinear optics in glasses: How can we analyze?

Tanaka

2007

Journal of Physics and Chemistry of Solids

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“…Fig. 1 summarizes reported photo-induced phenomena in As 2 S 3 glass (E g ≈ 2.4 eV) as functions of excitation photon-energy and light intensity [2,25]. For comparing pulsed and cw results in a single frame, the (peak) light intensity is plotted on the vertical axis, while the overall tendency does not change if the dose is taken for pulsed exposures.…”

Section: Photo-induced Changes In Inorganic and Organic Systemsmentioning

confidence: 99%

“…Note that temperature rise, which necessarily occurs with illumination, can be neglected here. On the other hand, there are several studies which demonstrate some photo-induced changes upon pulsed (ps -ns) mig-gap ( ω ≈ 1.2 ~ 1.5 eV) exposures [25], which may provide two-photon excitation. When the light intensity is increased to ~10 10 W/cm 2 (~1 J/cm 2 ), laser ablation occurs.…”

Section: Photo-induced Changes In Inorganic and Organic Systemsmentioning

confidence: 99%

Photo-induced phenomena in chalcogenide glass: Comparison with those in oxide glass and polymer

Tanaka

2006

Journal of Non-Crystalline Solids

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Two topics, the both being related with localized states in non-crystalline solids, are studied. One is a comparison of photo-induced phenomena in oxide, chalcogenide, and organic materials. Despite of different inorganic and organic structures, there exist many similarities in photo-induced phenomena, which can be ascribed to excitation of localized electronic states. The other topic concerns photo-induced phenomena induced by linear and non-linear excitation. A result on As 2 S 3 demonstrates that band-gap excitation by one-and two-photon processes provides different changes. It is suggested that the two-photon process occurs resonantly at around localized states in amorphous materials, and the process plays important roles in the structural change.

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“…11 In addition, the study may lead to production of glassy materials having high optical nonlinearities, which will be promising for optical functional devices, such as optical power stabilizers and so forth. 12 In the present work, therefore, we will investigate comparatively one-and two-photon optical absorption spectra of PbO-SiO 2 glasses. This glass system has been selected, since it has a wide glass-forming region 13 suitable for compositional studies.…”

mentioning

confidence: 99%