Time-resolved microscopy of femtosecond laser filaments in fused quartz

Date

2022-02-01

Author

Kadan, Viktor
Blonskyi, Ivan
Pavlov, Ihor

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Detailed picture of continuous shape evolution of femtosecond laser pulse has been recorded directly in the process of filament formation in fused silica using time-resolved polarization microscopy with similar to 70 fs temporal resolution. The main stages of the pulse transformation (temporal self-compression and splitting, formation of conical wave) have been studied. The maximum temporal compression has been found to be achieved by the leading subpulse after the time splitting event. It was found that the Bessel zone of conical wave formation is shifted backwards from the pulse front. Sub-and superluminal propagation velocities of the pulse maxima after the time splitting have been measured.

Subject Keywords

Femtosecond laser pulses, Filamentation, Time-resolved microscopy, X-WAVE FORMATION, PULSE FILAMENTATION, AIR

URI

https://hdl.handle.net/11511/95147

Journal

OPTICS COMMUNICATIONS

DOI

https://doi.org/10.1016/j.optcom.2021.127497

Collections

Department of Physics, Article

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Citation Formats

V. Kadan, I. Blonskyi, and I. Pavlov, “Time-resolved microscopy of femtosecond laser filaments in fused quartz,” OPTICS COMMUNICATIONS, vol. 505, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/95147.