Optical Properties of Yttrium Gallium Garnet
Jacob H Davidson, Dorian Oser, Wolfgang Tittel
TL;DR
This study measures the optical reflection and transmission spectra of Tm:Yttrium Gallium Garnet across a broad wavelength range, providing essential data for photonics applications.
Contribution
It presents the first detailed frequency-dependent complex refractive index of Tm:YGG, crucial for optical device design.
Findings
Identified and separated Tm resonances from the data.
Calculated the complex refractive index of Tm:YGG.
Provided a comprehensive database of optical parameters.
Abstract
We report measurements of the reflection and transmission spectra of 2% doped Thulium Yttrium Gallium Garnet (Tm:YGG) using variable-angle spectroscopic ellipsometry(VASE) over a wavelength range from 210 to 1680 nm (0.73-5.9 eV). The well-known Tm resonances are identified and separated from the aggregate data, allowing us to calculate the previously unknown frequency dependence of the complex refractive index of the host material. This information is important for many applications of YGG in classical and quantum photonics, including constructing optical cavities, laser-based applications, and quantum information devices. A complete database of the obtained parameters is included in the supplementary information.
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Taxonomy
TopicsAdvanced Fiber Laser Technologies · Photorefractive and Nonlinear Optics · Solid State Laser Technologies