Multi-photon absorption in the channeling of electrons in an external field

11th International Symposium on Radiation from Relativistic Electrons in Periodic Structures

Yaralov, V.^1

Alikhanyan National Laboratory, Yerevan Physics Institute, Brothers Alikhanyan 2, Yerevan

0036, Armenia^1

关键词: Alternating electric field;    Diamond crystals;    Emission spectrums;    External fields;    External laser fields;    MeV-Electrons;    Multi-photon absorption;    Transition frequencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/732/1/012022/pdf
DOI  :  10.1088/1742-6596/732/1/012022

来源: IOP

【 摘 要 】

Following the methods developed for atom ionization by alternating electric field the probability of multi-photon absorption of photons of the strong external laser field by channeled electron (extraction of electron from the channel) have been calculated for different strengths of the monochromatic external field. The emission spectra of 54 MeV electron channeled in diamond crystal planes (110) are shown for different values of the resonant laser field of a frequency close to the transition frequency in the channel taking into account multi-photon absorption. It is shown that the multi-photon phenomena give some contribution to the total level width.