Growth and optical properties of different compositions of LiNbO3 single crystal fibers

Chi Yung Chen; Jyh Chen Chen; Chih Ta Chia

doi:10.1016/j.optmat.2006.11.063

Growth and optical properties of different compositions of LiNbO₃ single crystal fibers

Chi Yung Chen, Jyh Chen Chen^*, Chih Ta Chia

^*Corresponding author for this work

Department of Physics

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

15 Citations (Scopus)

Abstract

In this study the laser-heated pedestal growth (LHPG) method was used to grow lithium niobate (LiNbO₃) single crystal fibers. The composition ratio were: [Li₂CO₃]/[Nb₂O₅] = 44:56, 45:55, 46:54, 47:53, 48:52, 48.6:51.4, 49:51 and 50:50 and were achieved by using different seed rods. The lattice parameters and crystalline structure of the crystals were determined by X-ray Single-Crystal Diffractometer (X-ray/CCD). The UV absorption spectra, Fourier-transform infrared spectrometer and Raman scattering spectroscopy results were used to find the optical properties and standard characterization of the different LiNbO₃ single crystals. We note that the wavelength of the UV absorption edge was less when the Li₂O composition was large. The plotted results, with the exception of the stoichiometric lithium niobate results, tended to fit a 2nd order polynomial curve. Transformation of the O-H absorption bands was observed. The Full-Width Half-Maximum (FWHM) of the Raman peak was found at 152 cm^-1 in the E(TO) mode and decreased linearly as the amount of the Li₂O composition increased. The Raman scattering results confirmed that the structure of the LiNbO₃ crystals became more rigid when the amount of the Li₂O composition increased.

Original language	English
Pages (from-to)	393-398
Number of pages	6
Journal	Optical Materials
Volume	30
Issue number	3
DOIs	https://doi.org/10.1016/j.optmat.2006.11.063
Publication status	Published - 2007 Nov

Keywords

Infrared and Raman spectroscopy
Laser heated pedestal growth method
Lithium niobate
UV absorption spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Computer Science
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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10.1016/j.optmat.2006.11.063

Cite this

@article{d7a6aed910d54b9eb018d7ad03f460f9,

title = "Growth and optical properties of different compositions of LiNbO3 single crystal fibers",

abstract = "In this study the laser-heated pedestal growth (LHPG) method was used to grow lithium niobate (LiNbO3) single crystal fibers. The composition ratio were: [Li2CO3]/[Nb2O5] = 44:56, 45:55, 46:54, 47:53, 48:52, 48.6:51.4, 49:51 and 50:50 and were achieved by using different seed rods. The lattice parameters and crystalline structure of the crystals were determined by X-ray Single-Crystal Diffractometer (X-ray/CCD). The UV absorption spectra, Fourier-transform infrared spectrometer and Raman scattering spectroscopy results were used to find the optical properties and standard characterization of the different LiNbO3 single crystals. We note that the wavelength of the UV absorption edge was less when the Li2O composition was large. The plotted results, with the exception of the stoichiometric lithium niobate results, tended to fit a 2nd order polynomial curve. Transformation of the O-H absorption bands was observed. The Full-Width Half-Maximum (FWHM) of the Raman peak was found at 152 cm-1 in the E(TO) mode and decreased linearly as the amount of the Li2O composition increased. The Raman scattering results confirmed that the structure of the LiNbO3 crystals became more rigid when the amount of the Li2O composition increased.",

keywords = "Infrared and Raman spectroscopy, Laser heated pedestal growth method, Lithium niobate, UV absorption spectroscopy",

author = "Chen, {Chi Yung} and Chen, {Jyh Chen} and Chia, {Chih Ta}",

note = "Funding Information: The authors gratefully acknowledge the support of the National Science Council of Taiwan, ROC for their support of this work through Grant No. NSC 93-2212-E-008-011. We also would like to thank Dr. Hsiang-Lin Liu from the Department of Physics, National Taiwan Normal University, for the loan of the UV absorption spectrum equipment.",

year = "2007",

month = nov,

doi = "10.1016/j.optmat.2006.11.063",

language = "English",

volume = "30",

pages = "393--398",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier BV",

number = "3",

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T1 - Growth and optical properties of different compositions of LiNbO3 single crystal fibers

AU - Chen, Chi Yung

AU - Chen, Jyh Chen

AU - Chia, Chih Ta

N1 - Funding Information: The authors gratefully acknowledge the support of the National Science Council of Taiwan, ROC for their support of this work through Grant No. NSC 93-2212-E-008-011. We also would like to thank Dr. Hsiang-Lin Liu from the Department of Physics, National Taiwan Normal University, for the loan of the UV absorption spectrum equipment.

PY - 2007/11

Y1 - 2007/11

N2 - In this study the laser-heated pedestal growth (LHPG) method was used to grow lithium niobate (LiNbO3) single crystal fibers. The composition ratio were: [Li2CO3]/[Nb2O5] = 44:56, 45:55, 46:54, 47:53, 48:52, 48.6:51.4, 49:51 and 50:50 and were achieved by using different seed rods. The lattice parameters and crystalline structure of the crystals were determined by X-ray Single-Crystal Diffractometer (X-ray/CCD). The UV absorption spectra, Fourier-transform infrared spectrometer and Raman scattering spectroscopy results were used to find the optical properties and standard characterization of the different LiNbO3 single crystals. We note that the wavelength of the UV absorption edge was less when the Li2O composition was large. The plotted results, with the exception of the stoichiometric lithium niobate results, tended to fit a 2nd order polynomial curve. Transformation of the O-H absorption bands was observed. The Full-Width Half-Maximum (FWHM) of the Raman peak was found at 152 cm-1 in the E(TO) mode and decreased linearly as the amount of the Li2O composition increased. The Raman scattering results confirmed that the structure of the LiNbO3 crystals became more rigid when the amount of the Li2O composition increased.

AB - In this study the laser-heated pedestal growth (LHPG) method was used to grow lithium niobate (LiNbO3) single crystal fibers. The composition ratio were: [Li2CO3]/[Nb2O5] = 44:56, 45:55, 46:54, 47:53, 48:52, 48.6:51.4, 49:51 and 50:50 and were achieved by using different seed rods. The lattice parameters and crystalline structure of the crystals were determined by X-ray Single-Crystal Diffractometer (X-ray/CCD). The UV absorption spectra, Fourier-transform infrared spectrometer and Raman scattering spectroscopy results were used to find the optical properties and standard characterization of the different LiNbO3 single crystals. We note that the wavelength of the UV absorption edge was less when the Li2O composition was large. The plotted results, with the exception of the stoichiometric lithium niobate results, tended to fit a 2nd order polynomial curve. Transformation of the O-H absorption bands was observed. The Full-Width Half-Maximum (FWHM) of the Raman peak was found at 152 cm-1 in the E(TO) mode and decreased linearly as the amount of the Li2O composition increased. The Raman scattering results confirmed that the structure of the LiNbO3 crystals became more rigid when the amount of the Li2O composition increased.

KW - Infrared and Raman spectroscopy

KW - Laser heated pedestal growth method

KW - Lithium niobate

KW - UV absorption spectroscopy

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