Generation of high-energy, kilohertz-rate narrowband tunable ultraviolet pulses using a burst-mode dye laser system.
Generation of high-energy, kilohertz-rate narrowband tunable ultraviolet pulses using a burst-mode dye laser system.
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DOI：
10.1364/ol.43.001191
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发表时间：
2018-03
期刊：
影响因子：
3.6
通讯作者：
R. Pan;U. Retzer;T. Werblinski;M. Slipchenko;T. Meyer;L. Zigan;S. Will
中科院分区：
文献类型：
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作者：
R. Pan;U. Retzer;T. Werblinski;M. Slipchenko;T. Meyer;L. Zigan;S. Will
典型的商业脉冲染料激光器系统用于产生窄带，可调谐的紫外辐射平面激光诱导荧光（PLIF）成像优化高（105 -10 kHz）重复率在相对较低的紫外脉冲能量（数百微焦耳）或高输出脉冲能量（>10 mJ）在相对较低的重复率（100 Hz）。在这项工作中，我们使用的倍频Nd：YAG脉冲模式激光器泵浦的高脉冲能量和重复频率为7.5，10，和20 kHz的自定义染料激光系统在566 nm。在283 nm处的倍频输出超过2.2 mJ/脉冲，可用于燃烧自由基的PLIF成像，与连续脉冲染料激光系统相比，每脉冲能量高一个数量级，并且在类似波长下，总效率比突发模式光学参量振荡器高1.3倍。讨论了重复频率、泵浦能量和染料浓度对系统的输出转换效率和脉间稳定性的影响。
Typical commercial pulsed dye laser systems used in the generation of narrowband, tunable ultraviolet radiation for planar laser-induced fluorescence (PLIF) imaging are optimized for either high (∼5-10 kHz) repetition rates at comparatively low ultraviolet pulse energies (hundreds of microjoules) or high-output pulse energies (>10 mJ) at comparatively low repetition rates (∼10 Hz). In this work we use a frequency-doubled Nd:YAG burst-mode laser to pump a custom dye laser system for high pulse energies and repetition rates of 7.5, 10, and 20 kHz at 566 nm. The frequency-doubled output of over 2.2 mJ/pulse at 283 nm, which can be used for PLIF imaging of combustion radicals, is an order of magnitude higher per pulse energy as compared with continuously pulsed dye laser systems and is ∼3× higher in overall efficiency than a burst-mode optical parametric oscillator at similar wavelengths. The influence of repetition rate, pump energy, and dye concentration on the output conversion efficiency and pulse-to-pulse stability of the current system is discussed.