Scaling Law of High Harmonic Generation in the Framework of Photon Channels

Liang Li, Pengfei Lan, Lixin He, Xiaosong Zhu, Jing Chen, and Peixiang Lu

Phys. Rev. Lett. 120, 223203 – Published 1 June 2018

Abstract

A photon channel perspective on high harmonic generation (HHG) is proposed by quantizing both the driving laser and high harmonics. It is shown that the HHG yield can be expressed as a sum of the contribution of all the photon channels. From this perspective, the contribution of a specific photon channel follows a simple scaling law and the competition between the channels is well interpreted. Our prediction is shown to be in good agreement with the simulations by solving the time-dependent Schrödinger equation. It also can explain well the experimental results of the HHG in the noncollinear two-color field and bicicular laser field.

Received 13 November 2017

DOI:https://doi.org/10.1103/PhysRevLett.120.223203

Physics Subject Headings (PhySH)

Atomic & molecular processes in external fields

Atomic, Molecular & Optical

Authors & Affiliations

Liang Li¹, Pengfei Lan^1,*, Lixin He¹, Xiaosong Zhu^1,†, Jing Chen^2,3,5,‡, and Peixiang Lu^1,4,§

¹Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
²HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100084, China
³Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China
⁴Laboratory of Optical Information Technology, Wuhan Institute of Technology, Wuhan 430205, China
⁵Collaborative Innovation Center for IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China

^*pengfeilan@hust.edu.cn
^†zhuxiaosong@hust.edu.cn
^‡chen_jing@iapcm.ac.cn
^§lupeixiang@hust.edu.cn

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Issue

Vol. 120, Iss. 22 — 1 June 2018

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