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Study of Cobalt-doped Cadmium Telluride for Solid-State Laser Applications

Turner, Eric James
http://orcid.org/0000-0001-7944-7216
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1531220110591212

Abstract Details

2018, Master of Science (M.S.), University of Dayton, Electro-Optics.
Cobalt-doped cadmium telluride (Co:CdTe) has been studied to identify its spectroscopic features and potential as a solid-state laser gain medium. Within the class of transition-metal-doped chalcogenide solid-state gain media, iron-doped zinc selenide (Fe:ZnSe) and chromium-doped zinc selenide (Cr:ZnSe) have emerged as practical sources of tunable mid-infrared radiation. Meanwhile, cobalt remains comparatively unexplored. Co:CdTe has an emission band within the 3 – 5 µm atmospheric transmission window and potential to fill the 3 – 3.8 µm spectral gap between Cr:ZnSe and Fe:ZnSe. A spectroscopic investigation of Co:CdTe was performed, and the temperature dependent emission and absorption properties were collected from 10 – 120 K. Cross-sections were calculated using the Fuchtbauer-Ladenburg and reciprocity methods. The optical amplification of a 3.8 µm Intraband Cascade Laser (ICL) was demonstrated by pumping Co:CdTe with a 2.8 µm continuous-wave Er-fiber laser. This is believed to be the first successful gain demonstration of a cobalt-doped chalcogenide material. A laser rate equation model was implemented to predict the optical gain and a thermal model was developed to analyze the temperature rise of Co:CdTe under continuous-wave pumping conditions. The primary aim of this work is to study the optical transitions between the ground state and first energy level of the crystal field, as well as evaluate the potential of Co:CdTe as a mid-infrared gain medium.
Jonathan Evans, PhD (Advisor)
Gary Cook, PhD (Committee Chair)
Andrew Sarangan, PhD (Committee Member)
50 p.
Engineering; Optics
Cobalt; Transistion-Metal-Doped Chalcogenide; Mid-Infrared Laser Amplifier; Solid-State Laser Amplifier; Laser Materials; Optical Spectroscopy

Recommended Citations

Citations

  • Turner, E. J. (2018). Study of Cobalt-doped Cadmium Telluride for Solid-State Laser Applications [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1531220110591212

    APA Style (7th edition)

  • Turner, Eric. Study of Cobalt-doped Cadmium Telluride for Solid-State Laser Applications. 2018. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1531220110591212.

    MLA Style (8th edition)

  • Turner, Eric. "Study of Cobalt-doped Cadmium Telluride for Solid-State Laser Applications." Master's thesis, University of Dayton, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1531220110591212

    Chicago Manual of Style (17th edition)

dayton1531220110591212
329
© 2018, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.