Dynamic behavior of postfilamentation Raman pulses

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Authors
  1. Daigle, J-F.
  2. Wang, T-J.
  3. Hosseini, S.
  4. Yuan, S.
  5. Roy, G.
  6. Chin, S.L.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
Abstract
We report on the postfilamentation behavior of a Stokes pulse created from intense and collimated ultrashort pulses propagating in air. A systematic analysis of the pulse propagation revealed that the redshifted Raman pulse produced during filamentation had a larger divergence than the postfilamentation intense pump pulse. Also, the analysis of the far-field Stokes transverse ring revealed that the intensity in this ionization-free light channel is still sufficiently high to induce stimulated Raman scattering after ionization had ended. This behavior further extends the potential of filamentation to remotely induce third-order nonlinearities.
Report Number
DRDC-VALCARTIER-SL-2011-552 — Scientific Literature
Date of publication
01 Nov 2011
Number of Pages
5
Reprinted from
Applied Optics, vol 50, no 33, 2011, p 6234-6238
DSTKIM No
CA037297
CANDIS No
537047
Format(s):
Electronic Document(PDF)

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