Liquid-Phase Epitaxial Growth and Characterization of Nd:YAl3(BO3)4 Optical Waveguides

Yi Lu; Peter Dekker; Judith Dawes

doi:10.20944/preprints201901.0280.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 25 January 2019 / Approved: 28 January 2019 / Online: 28 January 2019 (12:20:05 CET)

We investigated 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 by differential interference contrast microscopy. In addition, characterization by X-ray powder diffraction, optical absorption and luminescence spectra demonstrated the crystal quality and uniformity and optical guiding of the resulting thin films.

thin film crystal growth; epitaxial layer growth; multifunctional borate crystals; planar optical waveguides

Physical Sciences, Optics and Photonics

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Liquid-Phase Epitaxial Growth and Characterization of Nd:YAl₃(BO₃)₄ Optical Waveguides

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