University:
California State University, East Bay
Course:
CS 3590 | Data Communications and Networking
Academic year:

2023
Views:

313

Pages:

2
Author:

Jithin J I

COLLISION DYNAMICS OF SUPER-GAUSSIAN BEAMS IN HIGHLY NONLOCAL MEDIA Introduction  Nonlocal nonlinear media: liquid crystals, Bose-Einstein condensates  Highly nonlocal: Response function width >> beam width  Accessible solitons (AS): Simplified model for highly nonlocal media  Studies on AS have revealed new phenomena not seen in local solitons Super-Gaussian (SG) Beams  SG beams have narrow tails and flat-top peaks  Contain less energy than Gaussian beams of same width  SG parameter n controls edge sharpness and flattening of peak Mathematical Modeling  Used nonlocal nonlinear Schrödinger equation (NNLSE)  Gaussian response function models optical beam propagation Numerical Study of SG Beam Interactions  Collision distance decreases with increasing n due to more oscillations  SG beams recover original shape periodically during propagation  Gaussian beam propagation more stable than SG beams Conclusion  Collision distance between beams decreases with increasing SG n  SG beams convert to Gaussian shape during propagation and recover periodically  For longer interaction lengths, laser beam shape should be close to Gaussian in highly nonlocal media