On the possibility of laser cooling of Cr3+ ions doped crystals
| Autor: | A.B. Kulinkin, S.P. Feofilov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Absorption spectroscopy Analytical chemistry Physics::Optics 02 engineering and technology 01 natural sciences Ion Inorganic Chemistry Condensed Matter::Superconductivity Laser cooling 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry 010306 general physics Spectroscopy Organic Chemistry Doping Refrigeration 021001 nanoscience & nanotechnology Fluorescence Fluorescence spectra Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Atomic physics 0210 nano-technology Excitation |
| Zdroj: | Optical Materials. 75:554-560 |
| ISSN: | 0925-3467 |
| Popis: | The fluorescence of Cr3+ ions doped insulating crystals was studied under the excitation in the long-wavelength tail of the absorption spectrum (“laser cooling regime”). The 4T2 - 4A2 and 2E - 4A2 fluorescence spectra with a dominant anti-Stokes component were observed. Though no optical refrigeration was detected in the presented experiments, the spectroscopic results suggest that electron-phonon bands of Cr3+ ions are of interest for further investigations from the point of view of achieving optical refrigeration. |
| Databáze: | OpenAIRE |
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