Accession Number:

ADA574897

Title:

New Materials for Optical Cooling

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC PHOTONICS TECHNOLOGY BRANCH

Personal Author(s):

Report Date:

2000-12-01

Pagination or Media Count:

6.0

Abstract:

Well-characterized solid-state laser materials are evaluated for performance in optical refrigeration as well as radiation-balanced laser systems. New figures-of-merit are developed and applied to ytterbium-doped materials. Superior performance is predicted for high-cross-section tungstate materials. Photothermal deflection experiments on samples of Yb3-doped KGdWO42 confirm anti-Stokes fluorescence cooling. This is the first observation of optical cooling in a crystal.

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE