Quadrature frequency resolved spectroscopy of upconversion photoluminescence in GeGaS:Er3+: I. Determination of energy transfer upconversion parameter
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-016-6306-3
Abstract: The article presents the formulas of quadrature frequency resolved spectroscopy (QFRS) on the upconversion photoluminescence (UCPL) of rare-earth (RE) doped materials on the general M-level model. The formulas are derived in matrix-equation form with the… read more here.
Keywords: quadrature frequency; frequency resolved; resolved spectroscopy; energy ... See more keywords
Quadrature frequency resolved spectroscopy of upconversion photoluminescence in GeGaS:Er3+; II. elucidating excitation mechanisms of red emission besides green emission
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-017-6363-2
Abstract: The paper addresses the quadrature frequency resolved spectroscopy (QFRS) on the red (4F9/2 → 4I15/2) upconverted photoluminescence (UCPL) as well as the green (4S3/2 → 4I15/2) UCPL of Er3+ in GeGaS chalcogenide glasses at the… read more here.
Keywords: quadrature frequency; er3; frequency resolved; resolved spectroscopy ... See more keywords
77 GHz Quadrature Frequency Multiplier-by-nine with Superior Suppression for Radar Sensors
Sign Up to like & getrecommendations! Published in 2020 at "Sensors and Materials"
DOI: 10.18494/sam.2020.2725
Abstract: A 77 GHz quadrature frequency multiplier-by-nine is demonstrated using the 90 nm CMOS process. The implemented multiplier-by-nine is composed of a high conversion gain quadrature frequency tripler with coupled lines as the buffer stage to… read more here.
Keywords: ghz quadrature; quadrature frequency; radar sensors; frequency ... See more keywords