Spectroscopic properties of Ho3+ optical centers in CaF2 crystals at the two-micron laser transition
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117584
Abstract: Abstract The spectroscopic properties and lifetimes of various Ho3+ optical centers at the two-micron 5I7→5I8 laser transition were studied in CaF2 crystals at cryogenic temperatures (15 K, 77 K) using resonant selective excitation of holmium ions. For… read more here.
Keywords: laser transition; optical centers; spectroscopic properties; caf2 crystals ... See more keywords
Two-micron-wavelength germanium-tin photodiodes with low dark current and gigahertz bandwidth.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.015818
Abstract: We report the demonstration of a germanium-tin (Ge0.9Sn0.1) multiple-quantum-well p-i-n photodiode on silicon (Si) substrate for 2 μm-wavelength light detection. Characterization of the photodetector in both direct current (DC) and radio frequency (RF) regimes was… read more here.
Keywords: two micron; germanium tin; dark current; wavelength ... See more keywords