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Nonlinear Optical Properties and Laser Applications of Copper Chalcogenide Quantum Dots in Glass
Author(s) -
Yumashev K.V.,
Gurin V.S.,
Prokoshin P.V.,
Prokopenko V.B.,
Alexeenko A.A.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(200104)224:3<815::aid-pssb815>3.0.co;2-h
Subject(s) - selenide , copper , materials science , chalcogenide , picosecond , zinc selenide , saturable absorption , laser , saturation (graph theory) , optoelectronics , quantum dot , doping , chalcogenide glass , optics , selenium , fiber laser , metallurgy , wavelength , physics , mathematics , combinatorics
Absorption saturation and picosecond pump–probe measurements on oxidized copper selenide quantum dots in sol–gel glasses were carried out. The bleaching relaxation time was found to be ∼300 ps. The saturation intensities were estimated to be 2.2 MW/cm 2 at 1.06 μm and 7 MW/cm 2 at 1.54 μm for Cu 2 Se and Cu 2+ x Se‐doped glasses, respectively. Passive Q‐switching of 1.06, 1.34, and 1.54 μm solid state lasers with copper selenide‐doped glasses as saturable absorbers were demonstrated.