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.
Descriptors:
Subject Categories:
- Lasers and Masers
- Optics