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40-meter postfilament evolution in airтезисы доклада
- Авторы: Pushkarev D.V., Mokrousova D.V., Panov N.A., Nikolaeva I.A., Shipilo D.E., Zhidovtsev N.A., Rizaev G.E., Uryupina D.S., Koribut A.V., Savel'ev A.B., Kosareva O.G., Seleznev L.V., Ionin A.A.
- Сборник: 2022 International Conference Laser Optics (ICLO)
- Тезисы
- Год издания: 2022
- Место издания: IEEE
- DOI: 10.1109/iclo54117.2022.9840229
- Аннотация: We performed full characterization of postfilament formed by the radiation of the Ti:Sa laser system on an extended atmospheric path. Single-shot angle-wavelength spectra, beam diameter and self-correlation function measurements have been employed for this purpose. Using angle-wavelength spectra, the evolution of on-axis red-shifted humps has been traced, showing that their divergence does not exceed 0.5 mrad. Two zones in the postfilamentation process have been revealed: the Stockes zone with soliton-like propagation, where the number of the Stockes humps and their shift increases while the pulse duration remains almost constant, and the zone where the temporal and spectral postfilament characteristics changes like in linear propagation mode, while the beam divergence is negligible due to the Kerr nonlinearity.
- Добавил в систему: Пушкарев Дмитрий Владимирович