Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases

K. Schuh; M. Kolesik; E. M. Wright; J. V. Moloney; S. W. Koch

doi:10.1103/PhysRevLett.118.063901

Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases

K. Schuh, M. Kolesik, E. M. Wright, J. V. Moloney, S. W. Koch

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

We simulate and elucidate the self-channeling of high-power 10 μm infrared pulses in atomic gases. The major new result is that the peak intensity can remain remarkably stable over many Rayleigh ranges. This arises from the balance between the self-focusing, diffraction, and defocusing caused by the excitation induced dephasing due to many-body Coulomb effects that enhance the low-intensity plasma densities. This new paradigm removes the Rayleigh range limit for sources in the 8-12 μm atmospheric transmission window and enables transport of individual multi-TW pulses over multiple kilometer ranges.

Original language	English (US)
Article number	063901
Journal	Physical review letters
Volume	118
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.118.063901
State	Published - Feb 10 2017

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General Physics and Astronomy

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title = "Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases",

abstract = "We simulate and elucidate the self-channeling of high-power 10 μm infrared pulses in atomic gases. The major new result is that the peak intensity can remain remarkably stable over many Rayleigh ranges. This arises from the balance between the self-focusing, diffraction, and defocusing caused by the excitation induced dephasing due to many-body Coulomb effects that enhance the low-intensity plasma densities. This new paradigm removes the Rayleigh range limit for sources in the 8-12 μm atmospheric transmission window and enables transport of individual multi-TW pulses over multiple kilometer ranges.",

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AU - Moloney, J. V.

AU - Koch, S. W.

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N2 - We simulate and elucidate the self-channeling of high-power 10 μm infrared pulses in atomic gases. The major new result is that the peak intensity can remain remarkably stable over many Rayleigh ranges. This arises from the balance between the self-focusing, diffraction, and defocusing caused by the excitation induced dephasing due to many-body Coulomb effects that enhance the low-intensity plasma densities. This new paradigm removes the Rayleigh range limit for sources in the 8-12 μm atmospheric transmission window and enables transport of individual multi-TW pulses over multiple kilometer ranges.

AB - We simulate and elucidate the self-channeling of high-power 10 μm infrared pulses in atomic gases. The major new result is that the peak intensity can remain remarkably stable over many Rayleigh ranges. This arises from the balance between the self-focusing, diffraction, and defocusing caused by the excitation induced dephasing due to many-body Coulomb effects that enhance the low-intensity plasma densities. This new paradigm removes the Rayleigh range limit for sources in the 8-12 μm atmospheric transmission window and enables transport of individual multi-TW pulses over multiple kilometer ranges.

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Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases

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