Generation of high-brightness coherent radiation in the vacuum ultraviolet by four-wave parametric oscillation in mercury vapor.
Generation of high-brightness coherent radiation in the vacuum ultraviolet by four-wave parametric oscillation in mercury vapor.
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通过汞蒸气中的四波参量振荡在真空紫外中产生高亮度相干辐射。
DOI：
10.1364/ol.6.000182
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发表时间：
1981
期刊：
影响因子：
3.6
通讯作者：
J. White
中科院分区：
文献类型：
--
作者：
J. Bokor;R. Freeman;R. Panock;J. White
利用汞蒸气中的四波参量振荡产生了真空紫外（VUV）中多个波长的相干辐射。当频率为ω（p）的强大紫外泵浦激光器被调谐到双光子共振时，产生频率为ω（s）的VUV信号光子以及频率为ω（i）的闲频光子，使得ω（s）+ ω（i）= 2 ω（p）。利用6s6d（1）D（2）能级在280.3nm附近的双光子共振，获得了184.9和143.5nm的倍频染料激光输出。一个可调谐的氟化氪准分子激光器被调谐到248.7 nm附近的6s10s（1）S（0）能级的双光子共振，产生140.1，130.7，130.1，125.9和125.0 nm的输出。在143.5和125.9 nm处观察到约1微焦耳，200 W的脉冲。
Coherent radiation at several wavelengths in the vacuum ultraviolet (VUV) has been generated by four-wave parametric oscillation in mercury vapor. When a powerful ultraviolet pump laser of frequency omega(p) is tuned to a two-photon resonance, VUV signal photons at frequency omega(s), as well as idler photons at frequency omega(i), are generated such that omega(s) + omega(i) = 2omega(p). A frequency-doubled dye laser tuned to two-photon resonance with the 6s6d(1)D(2) level near 280.3 nm produced output at 184.9 and 143.5 nm. A tunable krypton fluoride excimer laser tuned to two-photon resonance with the 6s10s (1)S(0) level near 248.7 nm produced output at 140.1, 130.7, 130.1, 125.9, and 125.0 nm. Approximately 1-microJ, 200-W pulses were observed at 143.5 and 125.9 nm.