Self-pumped phase conjugation with nanosecond pulses in strontium barium niobate
| Autor: | Gregory J. Salamo, Ratnakar R. Neurgaonkar, Brian D. Monson, Mary J. Miller, Gary L. Wood, Andrew G. Mott, Edward J. Sharp, William W. Clark |
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| Rok vydání: | 1990 |
| Předmět: |
Total internal reflection
Argon Materials science business.industry chemistry.chemical_element Nonlinear optics Photorefractive effect Strontium barium niobate Nanosecond Laser Atomic and Molecular Physics and Optics law.invention chemistry.chemical_compound Optics chemistry law business Phase conjugation |
| Zdroj: | Optics Letters. 15:12 |
| ISSN: | 1539-4794 0146-9592 |
| Popis: | We report the observation of self-pumped phase conjugation by means of internal reflection in a photorefractive medium produced by a series of intense nanosecond pulses. Nanosecond pulses from a YAG laser ranging in intensity from 9 x 10(4) to 9 x 10(5) W/cm(2) were used. The crystal was rhodium-doped strontium barium niobate. The conjugate signal began with the first pulse, and the time to reach 63% of its equilibrium value scaled as I(-2). The equilibrium reflectivity was 29%. A similar cw experiment with the 514-nm line of an argon laser produced a response time that scaled as I(-1.1). |
| Databáze: | OpenAIRE |
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