Synthesis of Two-Color Laser Pulses for the Harmonic Cutoff Extension |
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Authors: | Guo-Li Wang Li-Hua Zhou Song-Feng Zhao Xiao-Xin Zhou |
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Institution: | Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China |
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Abstract: | Increasing simultaneously both the cutoff energy and efficiency is a big challenge to all applications of high-order harmonic generation(HHG).For this purpose,the shaping of the waveform of driving pulse is an alternative approach.Here,we show that the harmonic cutoff can be extended by about two times without reducing harmonic yield after considering macroscopic propagation effects,by adopting a practical way to synthesize two-color fields with fixed energy.Our results,combined with the experimental techniques,show the great potential of HHG as a tabletop light source. |
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Keywords: | harmonic cutoff extension synthesized two-color laser field propagation effects |
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