Generation of the Second and Fourth Harmonics with Retaining the Three-Dimensional Quasi-Ellipsoidal Distribution of the Laser Pulse Intensity for a Photoinjector


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We consider the possibility of generating the second and fourth optical harmonics of laser pulses having a central wavelength of 1030 nm with retaining the three-dimensional quasi-ellipsoidal intensity distribution. The presented results of numerical simulation confirm that angular chirping allows one to retain the three-dimensional structure of the intensity distribution and enhance energy conversion. The proposed approach was tested experimentally using non-profiled laser beams. Energy conversion efficiency of 53% and 21% was achieved in the generation of the second and fourth harmonics, respectively.

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S. Mironov

Institute of Applied Physics of the Russian Academy of Sciences

编辑信件的主要联系方式.
Email: sergey.mironov@mail.ru
俄罗斯联邦, Nizhny Novgorod

E. Gacheva

Institute of Applied Physics of the Russian Academy of Sciences

Email: sergey.mironov@mail.ru
俄罗斯联邦, Nizhny Novgorod

A. Potemkin

Institute of Applied Physics of the Russian Academy of Sciences

Email: sergey.mironov@mail.ru
俄罗斯联邦, Nizhny Novgorod

E. Khazanov

Institute of Applied Physics of the Russian Academy of Sciences

Email: sergey.mironov@mail.ru
俄罗斯联邦, Nizhny Novgorod

M. Krasil’nikov

Deutsches Elektronen–Synchrotron (PITZ)

Email: sergey.mironov@mail.ru
德国, Zeuthen

F. Stephan

Deutsches Elektronen–Synchrotron (PITZ)

Email: sergey.mironov@mail.ru
德国, Zeuthen

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