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| Content Provider | EDP Sciences |
|---|---|
| Author | J. Mares B. Jacquier C. Pédrini G. Boulon |
| Abstract | The energy transfer mechanisms between Ce3+ and Nd3+ are studied at low temperature (T = 4.4 K) in Ce codoped YAG : Nd crystals using selective pulsed dye laser excitation to pump into the first Ce3+ absorption band. Both radiative and nonradiative energy transfers are observed. Ce3+ fluorescence decay curves are measured for various Ce3+ concentrations ranging from 0.003 to 0.02 at. % and typical Nd3+ concentrations used in YAG: Nd laser rods (~ 0.73 and 0.88 at. %). Since no diffusion occurs among Ce3+ ions, the Ce3+ decay curves are fitted according to Inokuti-Hirayama's theory. The best agreement is obtained for a average critical distance R 0 ~ 1.1 nm for dipole-dipole as well as quadrupole-dipole couplings. This means that both couplings contribute to nonradiative Ce3+ → Nd3+ energy transfer in YAG : Nd, Ce crystals for the used concentrations. |
| Ending Page | 152 |
| Starting Page | 145 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 00351687 |
| Alternate Webpage(s) | http://dx.doi.org/10.1051/rphysap:01987002202014500 |
| Issue Number | 2 |
| Journal | Revue de Physique Appliquée |
| Volume Number | 22 |
| DOI | 10.1051/rphysap:01987002202014500 |
| Language | English |
| Publisher | Société Française de Physique |
| Publisher Date | 1987-02-01 |
| Access Restriction | Subscribed |
| Subject Keyword | cerium fluorescence garnets impurities neodymium nonradiative transitions yttrium compounds low temperature energy transfer mechanisms Ce sup 3+ Nd sup 3+ pulsed dye laser excitation fluorescence decay curves YAG:Nd, Ce YAl5O12:Nd,Ce |
| Content Type | Text |
| Resource Type | Article |
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