Home
For authors
Submission status

Current
Archive
Archive (English)
   Volumes 21-40
   Volumes 1-20
   Volumes 41-62
      Volume 62
      Volume 61
      Volume 60
      Volume 59
      Volume 58
      Volume 57
      Volume 56
      Volume 55
      Volume 54
      Volume 53
      Volume 52
      Volume 51
      Volume 50
      Volume 49
      Volume 48
      Volume 47
      Volume 46
      Volume 45
      Volume 44
      Volume 43
      Volume 42
      Volume 41
Search
VOLUME 55 (1992) | ISSUE 4 | PAGE 223
Dynamics of an intense femtosecond pulse in a Raman-active medium
The dynamics of an intense ultrashort light pulse in a Raman-active medium is analyzed in the case in which the pulse length is short in comparison with the time ii ~1, where fiil = E2 — Ex is the energy difference between the levels participating in the Raman scattering. Some new nonlinear effects can arise: the existence οϊίπη pulses of a self-induced transparency of the Raman-active medium and the generation, from a high-frequency signal, of video pulses of an electromagnetic field without a carrier frequency. The physics of the processes is new in a qualitative sense when the dynamics of the field is governed by a change in the energy of the photons rather than by a change in their number.