Direct characterization of self-guided femtosecond laser filaments in air

Direct characterization of self-guided femtosecond laser filaments in air

High-power femtosecond laser pulses propagating in air form self-guided filaments that can persist for many meters. Characterizing these filaments has always been challenging owing to their high intensity. An apparently novel diagnostic is used to directly measure the fluence distribution of femtose...

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Veröffentlicht in:Applied Optics 2005-03, Vol.44 (8), p.1474-1479
Hauptverfasser: Ting, Antonio, Gordon, Daniel F, Briscoe, Eldridge, Peñano, Joseph R, Sprangle, Phillip
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container_end_page 1479
container_issue 8
container_start_page 1474
container_title Applied Optics
container_volume 44
creator Ting, Antonio
Gordon, Daniel F
Briscoe, Eldridge
Peñano, Joseph R
Sprangle, Phillip
description High-power femtosecond laser pulses propagating in air form self-guided filaments that can persist for many meters. Characterizing these filaments has always been challenging owing to their high intensity. An apparently novel diagnostic is used to directly measure the fluence distribution of femtosecond laser pulses after they have formed self-guided optical filaments in air. The diagnostic is unique in that the information contained in the filaments is not lost owing to the interaction with the apparatus. This allows filament characteristics such as energy and size to be unambiguously determined for the first time.
doi_str_mv 10.1364/AO.44.001474
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title Direct characterization of self-guided femtosecond laser filaments in air
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