Development of an organic dye solution for laser cooling by anti-Stokes fluorescence

Jarett L. Bartholomew, Peter A. DeBarber, Bauke Heeg, Garry Rumbles

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Several independent groups have observed optical cooling by means of anti-Stokes luminescence in condensed media. The most promising materials are grouped into two categories: ion-doped glasses and organic dye solutions. It is this latter group that we focus our efforts on. Recent studies by our group show that irradiating a solution of rhodamine 101 in the long wavelength wing of the absorption spectrum results in the observation of optical cooling. To improve upon the initial observation of a few degree drop in temperature requires a better understanding of the conditions and phenomena leading to anti-Stokes luminescence in dye solutions. We develop a thermal lensing experiment to obtain fluorescence quantum yields of various dye solutions. The importance of concentration, choice of solvent, deuteration, and acidification are discussed.

Original languageEnglish
Pages (from-to)G171-G176
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - Jan 1 2001
Externally publishedYes
EventLuminescent and Lumiescent Materials - San Francisco, CA, United States
Duration: Apr 17 2001Apr 19 2001

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Development of an organic dye solution for laser cooling by anti-Stokes fluorescence'. Together they form a unique fingerprint.

Cite this