Potential of ytterbium doped silica glass for solid-state optical refrigeration to below 200 K
Abstract
We report on the optical refrigeration of ytterbium doped silica glass by >40 K starting at room temperature, which represents more than a two-fold improvement over the previous state-of-the-art. A spectroscopic investigation of the steady-state and time-dependent fluorescence was carried out over the temperature range 80 K to 400 K. The calculated minimum achievable temperature for our Yb3+ doped silica sample is ≈150 K, implying the potential for utilizing ytterbium doped silica for solid-state optical refrigeration below temperatures commonly achieved by standard Peltier devices.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 11, 2023
- Source ID
- 10.1364/oe.481191
Entities
People
- Alexander Neumann
- Alexander R Albrecht
- Angel S. Flores
- Arash Mafi
- Brian Topper
- Christian Hupel
- Denny Häßner
- Johannes Nold
- Mansoor Sheik‐Bahae
- Nicoletta Haarlammert
- Sigrun Hein
- Stefan Kuhn
- Thomas Schreiber
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Federal Ministry of Research, Technology and Space
- Fraunhofer Institute for Applied Optics and Precision Engineering
- University of New Mexico