학술논문
Optical Properties of Yb:Lu3Al5O12 Crystal Irradiated by 4.5-MeV Si Ions.
Document Type
Article
Author
Source
Subject
*CRYSTAL optics
*RUTHERFORD backscattering spectrometry
*WAVEGUIDE lasers
*REFRACTIVE index
*IONS
*WAVELENGTH measurement
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Language
ISSN
1063-7834
Abstract
Compact waveguide laser sources emitting at wavelength around 1.0 μm are interesting in a multiple of application. In present work, we demonstrate a crystalline waveguide in Yb:Lu3Al5O12 (Yb:LuAG) crystal irradiated by 4.5-MeV Si ions at fluences of 1.0 × 10–15 cm–2. A typical "barrier-confined" waveguide geometry is confirmed by performing the prism-coupling measurement at a wavelength of 632.8 nm with transverse electric (TE) polarization, and the refractive index profile is proposed based on the dark-mode plots. Under excitation at 930 nm, the peak emission at 1030 nm is generated with a bandwidth of 14.4 nm. The fluorescence decay actions are investigated on a Jobin Yvon spectrometer. The radiative constants and peak emission cross-section values are obtained. [ABSTRACT FROM AUTHOR]