Liquid-phase epitaxial growth and characterization of Nd:YAl3(BO3)4                                                  optical waveguides

Yi Lu; Peter Dekker; Judith M. Dawes

doi:10.3390/cryst9020079

Liquid-phase epitaxial growth and characterization of Nd:YAl₃(BO₃₎₄ optical waveguides

Yi Lu, Peter Dekker, Judith M. Dawes^*

^*Corresponding author for this work

MQ Photonics Research Centre

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

4 Citations (Scopus)

68 Downloads (Pure)

Abstract

We investigated the fabrication of neodymium doped thin film optical waveguide-based devices as potential active sources for planar integrated optics. Liquid-phase epitaxial growth was used to fabricate neodymium-doped yttrium aluminum borate films on compatible lattice-matched, un-doped yttrium aluminum borate substrates. We observed the refractive index contrast of the doped and un-doped crystal layers via differential interference contrast microscopy. In addition, characterization by X-ray powder diffraction, optical absorption and luminescence spectra demonstrated the crystal quality, uniformity and optical guiding of the resulting thin films.

Original language	English
Article number	79
Pages (from-to)	1-9
Number of pages	9
Journal	Crystals
Volume	9
Issue number	2
DOIs	https://doi.org/10.3390/cryst9020079
Publication status	Published - 1 Feb 2019

Keywords

Epitaxial layer growth
Multifunctional borate crystals
Planar optical waveguides
Thin film crystal growth

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10.3390/cryst9020079Licence: CC BY

Publisher version (open access)Final published version, 3.15 MBLicence: CC BY

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AU - Lu, Yi

AU - Dekker, Peter

AU - Dawes, Judith M.

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Y1 - 2019/2/1

N2 - We investigated the fabrication of neodymium doped thin film optical waveguide-based devices as potential active sources for planar integrated optics. Liquid-phase epitaxial growth was used to fabricate neodymium-doped yttrium aluminum borate films on compatible lattice-matched, un-doped yttrium aluminum borate substrates. We observed the refractive index contrast of the doped and un-doped crystal layers via differential interference contrast microscopy. In addition, characterization by X-ray powder diffraction, optical absorption and luminescence spectra demonstrated the crystal quality, uniformity and optical guiding of the resulting thin films.

AB - We investigated the fabrication of neodymium doped thin film optical waveguide-based devices as potential active sources for planar integrated optics. Liquid-phase epitaxial growth was used to fabricate neodymium-doped yttrium aluminum borate films on compatible lattice-matched, un-doped yttrium aluminum borate substrates. We observed the refractive index contrast of the doped and un-doped crystal layers via differential interference contrast microscopy. In addition, characterization by X-ray powder diffraction, optical absorption and luminescence spectra demonstrated the crystal quality, uniformity and optical guiding of the resulting thin films.

KW - Epitaxial layer growth

KW - Multifunctional borate crystals

KW - Planar optical waveguides

KW - Thin film crystal growth

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Liquid-phase epitaxial growth and characterization of Nd:YAl₃(BO₃₎₄ optical waveguides

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