Optical spectroscopy of cobalt-doped cadmium telluride

Eric J. Turner; Jonathan Evans; Thomas Harris

doi:10.1117/12.2288502

15 February 2018 Optical spectroscopy of cobalt-doped cadmium telluride

Eric J. Turner, Jonathan Evans, Thomas Harris

Proceedings Volume 10511, Solid State Lasers XXVII: Technology and Devices; 105111O (2018) https://doi.org/10.1117/12.2288502
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Spectroscopic investigation of Co²⁺:CdTe was performed to evaluate it’s potential as a lasing medium. The sample had a targeted doping concentration of 2% and measurements were performed from 10 - 120K. Cross-sections for Co:CdTe were calculated using Füchtbauer-Ladenburg and reciprocity methods. Calculations suggest the potential for efficient lasing at ~3.7μm when pumped by a 3μm laser source on the ⁴A₂ ↔ ⁴T₂ transition. The fluorescence lifetime was measured to quantify the temperature dependence of the non-radiative relaxation rate. This work aims to characterize Co:CdTe as a novel gain medium for compact, tunable mid-infrared lasers operating within the atmospheric transmission window.

Citation Download Citation

Eric J. Turner, Jonathan Evans, and Thomas Harris "Optical spectroscopy of cobalt-doped cadmium telluride", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105111O (15 February 2018); https://doi.org/10.1117/12.2288502

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