Focusing of ultrashort sub-TW laser pulses in air - Supercontinuum emission

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dc.contributor.author Kiran, P. Prem
dc.contributor.author Bagchi, S.
dc.contributor.author Arnold, C. L.
dc.contributor.author Krishnan, S. Rama
dc.contributor.author Kumar, G. Ravindra
dc.contributor.author Couairon, A.
dc.date.accessioned 2022-03-27T11:52:15Z
dc.date.available 2022-03-27T11:52:15Z
dc.date.issued 2011-09-14
dc.description.abstract Our recent work [Phys. Rev. A, 82, 013805 (2010)] clearly establishes a new regime of filamentation beyond the conventional "intensity clamping" by high-resolution spatial imaging of filaments. We present the corresponding measurements of the super continuum emission (SCE) from filaments in this regime produced by ultra short (45 fs) sub- TW (up to 0.2 TW) Ti:Sapphire laser pulses focused air under tight (f/6) focusing geometry. The intimate connection between the spatial and spectral domains in the new regime is established by investigating the spectral broadening of SCE at peak intensities exceeding 1014 W/cm2 pulses at the focus thus giving a more complete picture of this new regime in filamentary propagation of intense fs pulses. © 2011 SPIE.
dc.identifier.citation Proceedings of SPIE - The International Society for Optical Engineering. v.8173
dc.identifier.issn 0277786X
dc.identifier.uri 10.1117/12.898485
dc.identifier.uri http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.898485
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/14898
dc.subject Intensity clamping
dc.subject Propagation
dc.subject Sub-TW fs laser pulses
dc.subject Super continnum emission
dc.subject Tight focusing
dc.title Focusing of ultrashort sub-TW laser pulses in air - Supercontinuum emission
dc.type Conference Proceeding. Conference Paper
dspace.entity.type
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