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Synchronized off-harmonic probe laser with highly variable pulse duration for laser-plasma interaction experiments
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作者 J.Hornung Y.Zobus +3 位作者 H.Lorenté C.Brabetz B.Zielbauer V.Bagnoud 《High Power Laser Science and Engineering》 SCIE CAS CSCD 2024年第1期99-107,共9页
This paper presents the development and experimental utilization of a synchronized off-harmonic laser system designed as a probe for ultra-intense laser±plasma interaction experiments. The system exhibits a novel... This paper presents the development and experimental utilization of a synchronized off-harmonic laser system designed as a probe for ultra-intense laser±plasma interaction experiments. The system exhibits a novel seed-generation design,allowing for a variable pulse duration spanning over more than three orders of magnitude, from 3.45 picoseconds to 10 nanoseconds. This makes it suitable for various plasma diagnostics and visualization techniques. In a side-view configuration, the laser was employed for interferometry and streaked shadowgraphy of a laser-induced plasma while successfully suppressing the self-emission background of the laser±plasma interaction, resulting in a signal-to-self-emission ratio of 110 for this setup. These properties enable the probe to yield valuable insights into the plasma dynamics and interactions at the PHELIX facility and to be deployed at various laser facilities due to its easy-to-implement design. 展开更多
关键词 INTERFEROMETRY laser-plasma interaction off-harmonic probe laser streaked shadowgraphy
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Parametric amplification as a single-shot time-resolved off-harmonic probe for laser–matter interactions 被引量:1
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作者 Filip Grepl Maksym Tryus +1 位作者 Timofej Chagovets Daniele Margarone 《High Power Laser Science and Engineering》 SCIE EI CAS CSCD 2023年第4期9-16,共8页
An optical probing of laser–plasma interactions can provide time-resolved measurements of plasma density;however,single-shot and multi-frame probing capabilities generally rely on complex setups with limited flexibil... An optical probing of laser–plasma interactions can provide time-resolved measurements of plasma density;however,single-shot and multi-frame probing capabilities generally rely on complex setups with limited flexibility.We have demonstrated a new method for temporal resolution of the rapid dynamics(∼170 fs)of plasma evolution within a single laser shot based on the generation of several consecutive probe pulses from a single beta barium borate-based optical parametric amplifier using a fraction of the driver pulse with the possibility to adjust the central wavelengths and delays of particular pulses by optical delay lines.The flexibility and scalability of the proposed experimental technique are presented and discussed. 展开更多
关键词 off-harmonic optical probing plasma diagnostics ultrafast imaging
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