| Zugriffsnummer | 38020 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Self-focusing in photorefractive two-wave mixing |
| Autor(in); Institution |
Vaupel, Mathias; 4.3, Länge und Zeit, PTB-Braunschweig
Seror, C; University Paris Sud, Orsay, FRANCE
Dykstra, R.; University of Queensland, Bisbane, AUSTRALIA
|
| Quelle/Jahr | Optics Letters: 22 (1997), 19, 1470 - 1472 |
| ISSN | 0146-9592 (PRINT) ; 1539-4794 (ONLINE) |
| DOI | |
| Verlag | Washington, DC: OSA |
| Klassifikationscode | PACS: 42.65.Jx ; PACS: 42.65.Hw ; PACS: 78.20.Ci |
| Zusammenfassung | Self-focusing and self-defocusing of light in two-wave mixing are investigated experimentally. Amplification and self-focusing are measured as functions of the frequency shift between signal and pump beams. A frequency dependence is found in Kramers–Kronig form, as is plausible by the analogy of photorefractive amplification and laser amplification. Reversal of the external dc field on the material or a change in the frequency shift between the signal and pump beams is found to change self-focusing to self-defocusing. |
