Optical Materials

Gallium arsenide whispering gallery mode resonators for terahertz photonics
As the field of terahertz (THz) photonics advances, we present a monolithic gallium arsenide (GaAs) disk-shaped whispering gallery mode …
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Broadband NIR photoluminescence from Bi-doped Ba$_2$P$_2$O$_7$ crystals: Insights into the nature of NIR-emitting Bismuth centers
We report on a novel type of Bi-doped crystal that exhibits ultrabroadband photoluminescence in the near infrared (NIR). Emission …
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Microwave whispering-gallery resonator for efficient optical up-conversion
Conversion of microwave radiation into the optical range has been predicted to reach unity quantum efficiency in whispering-gallery …
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