@inproceedings{af54456a57d546baabd64267ad48cf46,
title = "Focusing of ultrashort sub-TW laser pulses in air - Supercontinuum emission",
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.",
keywords = "Intensity clamping, Propagation, Sub-TW fs laser pulses, Super continnum emission, Tight focusing",
author = "Kiran, \{P. Prem\} and S. Bagchi and Arnold, \{C. L.\} and Krishnan, \{S. Rama\} and Kumar, \{G. Ravindra\} and A. Couairon",
year = "2011",
month = sep,
day = "14",
doi = "10.1117/12.898485",
language = "English",
isbn = "9780819488008",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Photonics 2010",
note = "Photonics 2010: 10th International Conference on Fiber Optics and Photonics ; Conference date: 11-12-2010 Through 15-12-2010",
}