Advances in Laser Cooling of Thulium-Doped Glass

Abstract

Recent developments in cooling thulium-doped heavy-metal fluoride glass are presented. Thulium-doped fluorozirconate (ZBLANP) is cooled to 19 K below ambient with a multiple-pass pump scheme. This represents over an order of magnitude increase from the previously reported single-pass geometry. The results agree with a simple model for anti-Stokes fluorescence cooling that includes considerations of quantum efficiency and parasitic heating mechanisms. Issues relating to a practical optical refrigerator are examined, including a general model for the effects of multiple pump passes.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2003
Accession Number
ADA597320

Entities

People

  • C. W. Hoyt
  • J. Distel
  • J. Thiede
  • J. Valencia
  • M. P. Hasselbeck
  • M. Sheik-bahae
  • R. I. Epstein
  • S. Greenfield

Organizations

  • Los Alamos National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Acousto-Optic Modulators
  • Air Force
  • Climate Change
  • Cooling
  • Detectors
  • Energy Gaps
  • Energy Transfer
  • Equations
  • Fluoride Glass
  • Geometry
  • Glass
  • Laser Cooling
  • Lasers
  • Measurement
  • Quantum Efficiency
  • Scattering

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • AI & ML
  • AI & ML - Machine Learning Algorithms
  • Directed Energy
  • Quantum Computing