Abstract
Using a direct variational technique involving elliptic Gaussian laser beam trial function, the combined effect of non-linearity and diffraction on wave propagation of optical beam in a homogeneous bulk Kerr-medium is presented. Particular emphasis is put on the variation of beam width and longitudinal phase delay with the distance of propagation. It is observed that no stationary self-trapping is possible. The regularized phase is also seen to be always negative.
Original language | English |
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Pages (from-to) | 423-431 |
Number of pages | 9 |
Journal | Pramana - Journal of Physics |
Volume | 55 |
Issue number | 3 |
DOIs | |
State | Published - Sep 2000 |
Externally published | Yes |
Funding
This research work was partially supported by the University Grants Commission of India.