Characterization of diffraction grating in photorefractive sol-gel glass

H. K. Lee; U. J. Hwang; C. H. Oh; G. J. Lee; Y. P. Lee; W. G. Jun; D. H. Choi

doi:10.1080/15421400490506630

Characterization of diffraction grating in photorefractive sol-gel glass

H. K. Lee, U. J. Hwang, C. H. Oh, G. J. Lee, Y. P. Lee, W. G. Jun, D. H. Choi

Research output: Contribution to journal › Article › peer-review

Abstract

The photorefractivity of a sol-gel glass was investigated using two-beam-coupling (TBC), degenerate-four-wave-mixing (DFWM), and phase shifting methods. The sol-gel glass was prepared by introducing the following photorefractive elements in the polyethyleneglycol matrix: TNF, SG-Cz, and SG-MN were used as charge generator, charge transporter, and electrooptic material, respectively. TBC gain of 90 cm^-1 and diffraction efficiency of 46% were obtained at 107 V/μm field. Also we measured the grating build-up and relaxation characteristics. The holographic phase shift was measured to be 51° at 107 V/μm field. In order to compare this photorefractive sol-gel glass with inorganic photorefractive crystal, we measured the photorefractive properties of Fe:LiNbO₃. As a result, we obtained the TBC gain of 50 cm^-1, the diffraction efficiency of 47%, and the phase shift of 90° for Fe:LiNbO₃ sample.

Original language	English
Pages (from-to)	129-135
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	425
DOIs	https://doi.org/10.1080/15421400490506630
Publication status	Published - 2004
Externally published	Yes

Keywords

Degenerate four wave mixing
Holographic phase shift
Photorefractivity
Sol-gel glass
Two beam coupling

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/15421400490506630

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title = "Characterization of diffraction grating in photorefractive sol-gel glass",

abstract = "The photorefractivity of a sol-gel glass was investigated using two-beam-coupling (TBC), degenerate-four-wave-mixing (DFWM), and phase shifting methods. The sol-gel glass was prepared by introducing the following photorefractive elements in the polyethyleneglycol matrix: TNF, SG-Cz, and SG-MN were used as charge generator, charge transporter, and electrooptic material, respectively. TBC gain of 90 cm-1 and diffraction efficiency of 46% were obtained at 107 V/μm field. Also we measured the grating build-up and relaxation characteristics. The holographic phase shift was measured to be 51° at 107 V/μm field. In order to compare this photorefractive sol-gel glass with inorganic photorefractive crystal, we measured the photorefractive properties of Fe:LiNbO3. As a result, we obtained the TBC gain of 50 cm-1, the diffraction efficiency of 47%, and the phase shift of 90° for Fe:LiNbO3 sample.",

keywords = "Degenerate four wave mixing, Holographic phase shift, Photorefractivity, Sol-gel glass, Two beam coupling",

author = "Lee, {H. K.} and Hwang, {U. J.} and Oh, {C. H.} and Lee, {G. J.} and Lee, {Y. P.} and Jun, {W. G.} and Choi, {D. H.}",

year = "2004",

doi = "10.1080/15421400490506630",

language = "English",

volume = "425",

pages = "129--135",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor and Francis Ltd.",

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TY - JOUR

T1 - Characterization of diffraction grating in photorefractive sol-gel glass

AU - Lee, H. K.

AU - Hwang, U. J.

AU - Oh, C. H.

AU - Lee, G. J.

AU - Lee, Y. P.

AU - Jun, W. G.

AU - Choi, D. H.

PY - 2004

Y1 - 2004

N2 - The photorefractivity of a sol-gel glass was investigated using two-beam-coupling (TBC), degenerate-four-wave-mixing (DFWM), and phase shifting methods. The sol-gel glass was prepared by introducing the following photorefractive elements in the polyethyleneglycol matrix: TNF, SG-Cz, and SG-MN were used as charge generator, charge transporter, and electrooptic material, respectively. TBC gain of 90 cm-1 and diffraction efficiency of 46% were obtained at 107 V/μm field. Also we measured the grating build-up and relaxation characteristics. The holographic phase shift was measured to be 51° at 107 V/μm field. In order to compare this photorefractive sol-gel glass with inorganic photorefractive crystal, we measured the photorefractive properties of Fe:LiNbO3. As a result, we obtained the TBC gain of 50 cm-1, the diffraction efficiency of 47%, and the phase shift of 90° for Fe:LiNbO3 sample.

AB - The photorefractivity of a sol-gel glass was investigated using two-beam-coupling (TBC), degenerate-four-wave-mixing (DFWM), and phase shifting methods. The sol-gel glass was prepared by introducing the following photorefractive elements in the polyethyleneglycol matrix: TNF, SG-Cz, and SG-MN were used as charge generator, charge transporter, and electrooptic material, respectively. TBC gain of 90 cm-1 and diffraction efficiency of 46% were obtained at 107 V/μm field. Also we measured the grating build-up and relaxation characteristics. The holographic phase shift was measured to be 51° at 107 V/μm field. In order to compare this photorefractive sol-gel glass with inorganic photorefractive crystal, we measured the photorefractive properties of Fe:LiNbO3. As a result, we obtained the TBC gain of 50 cm-1, the diffraction efficiency of 47%, and the phase shift of 90° for Fe:LiNbO3 sample.

KW - Degenerate four wave mixing

KW - Holographic phase shift

KW - Photorefractivity

KW - Sol-gel glass

KW - Two beam coupling

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DO - 10.1080/15421400490506630

M3 - Article

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SN - 1542-1406

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SP - 129

EP - 135

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

ER -

Characterization of diffraction grating in photorefractive sol-gel glass

Abstract

Keywords

ASJC Scopus subject areas

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