UDC 530.182
UDC 535-15
UDC 504.3
CSCSTI 29.31
Russian Classification of Professions by Education 03.03.02
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 6135
BISAC TEC019000 Lasers & Photonics
The generation of terahertz radiation from an array of the incoherent optical filaments formed after a powerful laser pulse passes through an atmospheric turbulent layer is numerically studied. A theoretical model is proposed that allows to reduce the solution of the problem to the study of a reduced stationary version of the nonlinear Schrödinger equation with phenomenological consideration of the effects of radiation reabsorption in plasma.
terahertz radiation, filament
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2. Zhao J., Zhang X., Li S., Liu C., Chen Y., Peng Y., Zhu Y. Detecting the propagation effect of terahertz wave inside the two-color femtosecond laser filament in the air // Appl. Phys. B. 2018. V. 124, N 45. P. 1–7.
3. Bai K., Gou Y., Peng X.-Y. Terahertz beam array generated by focusing two-color-laser pulses into air with a microlens array // AIPAdvances. 2022. V. 12, N 9. P. 095113.
4. Geints Y., Bulygin A., Babushkin P., Kabanov A., Petrov A., Oshlakov V., Khoroshaeva E. Turbulence-enhanced THz generation by multiple chaotically-distributed femtosecond filaments in air // Opt. Laser Technol. 2024. V. 179. P. 11322.
5. Bulygin A.D. Optimizaciya generacii TGc-izlucheniya metodom profilirovaniya lazernogo izlucheniya v vozduhe s ispol'zovaniem geneticheskogo algoritma // Optika atmosfery i okeana. 2024. T. 37, № 12. S. 1023–1027.
6. Berge L., Skupin S., Lederer F., Méjean G., Kasparian Yu., Salmon E., Wolf J., Rodriguez M., Wöste L., Bourayou R., Sauerbrey R. Multiplefilamentation of terawatt laser pulsed in air // Phys. Rev. Lett. 2004. V. 92, N 22.
7. Bulygin A.D. and Geints Yu.E. Toward high-speed effective numerical simulation of multiple filamentation of high-power femtosecond laser radiation in a transparent medium // J. Opt. Soc. Am. B. 2023. V. 40. P. 2339 2348.
