An amorphous silicon photodiode with 2 THz gain-bandwidth product based on cycling excitation process
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.5001170
Abstract: Since impact ionization was observed in semiconductors over half a century ago, avalanche photodiodes (APDs) using impact ionization in a fashion of chain reaction have been the most sensitive semiconductor photodetectors. However, APDs have relatively… read more here.
Keywords: cycling excitation; bandwidth product; excitation; excitation process ... See more keywords
Enhanced mid-infrared emission of Pr3+ ions in solids through a "3-for-1" excitation process - quantified.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.441516
Abstract: Evidence is presented that a "three-for-one" process based on two cross-relaxations between Pr3+ ions efficiently populates the mid-infrared-emitting 3H5 manifold in a Pr3+-doped low-maximum-phonon-energy host. The concentration dependence of infrared fluorescence spectra and lifetimes of… read more here.
Keywords: pr3 ions; process; mid infrared; excitation ... See more keywords