| Autor: |
Amimoto, S. T., Gross, R. W. F., Garman-DuVall, L., Good, T. W., Piranian, J. D. |
| Zdroj: |
Optics Letters; September 1991, Vol. 16 Issue: 18 p1382-1384, 3p |
| Abstrakt: |
Common liquid Brillouin media have poor optical and physical stability when they are pumped at high average powers. We demonstrate that tin tetrachloride, SnCl_4, is stable and shows no thermal defocusing at 1064 nm for 20-ns pulses at fluences of 3 J/cm^2 and a pulse-repetition frequency of 10 Hz. To characterize this new stimulated-Brillouin-scattering medium we measured the following stimulated Brillouin parameters: Brillouin shift at 35°C, νB = (2.21 ± 0.02) GHz or ωB = 7.37 × 10^−2 cm^−1; temperature dependence of the Brillouin shift, dνB/dT = −8.95 MHz/°C; small-signal gain coefficient at line center, g_0 = (11.2 ± 0.5) cm/GW; Brillouin-gain linewidth, ΔνB = (182 ± 12) MHz, which corresponds to a phonon relaxation time τB = 1.75 ns; and refractive index n = 1.36 at 1.064 μm and 25°C. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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