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arXiv · 2008.10409

Efficient second-harmonic generation of a high-energy, femtosecond laser pulse in a lithium triborate (LBO) crystal

C. Aparajit·Kamalesh Jana·Amit D. Lad·Yash M. Ved·Arnaud Couairon·G. Ravindra Kumar
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Abstract

We demonstrate the highest efficiency ($\sim$80%) second harmonic generation (SHG) of Joule level, 27 femtosecond, high contrast pulses in a type-I lithium triborate (LBO) crystal. In comparison, potassium dihydrogen phosphate (KDP) gives a maximum efficiency of 26%. LBO thus offers high intensity ($>$10$^{19}$ W/cm$^{2}$), ultra-high contrast femtosecond pulses, which have great potential for high energy density science particularly with nanostructured targets as well as technological applications.

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C. Aparajit, Kamalesh Jana, Amit D. Lad, Yash M. Ved, Arnaud Couairon, G. Ravindra Kumar. 2020-08-24. Efficient second-harmonic generation of a high-energy, femtosecond laser pulse in a lithium triborate (LBO) crystal. https://doi.org/10.1364/ol.423725

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