TY - JOUR
T1 - Self-similar evolution in nonlocal nonlinear media
AU - Horikis, T. P.
AU - Frantzeskakis, D. J.
AU - Antar, N.
AU - Bakirtaş, I.
AU - Smyth, N. F.
N1 - Publisher Copyright:
© 2019 Optical Society of America.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - The self-similar propagation of optical beams in a broad class of nonlocal, nonlinear optical media is studied utilizing a generic system of coupled equations with linear gain. This system describes, for instance, beam propagation in nematic liquid crystals and optical thermal media. It is found, both numerically and analytically, that the nonlocal response has a focusing effect on the beam, concentrating its power around its center during propagation. In particular, the beam narrows in width and grows in amplitude faster than in local media, with the resulting beam shape being parabolic. Finally, a general initial localized beam evolves to a common shape.
AB - The self-similar propagation of optical beams in a broad class of nonlocal, nonlinear optical media is studied utilizing a generic system of coupled equations with linear gain. This system describes, for instance, beam propagation in nematic liquid crystals and optical thermal media. It is found, both numerically and analytically, that the nonlocal response has a focusing effect on the beam, concentrating its power around its center during propagation. In particular, the beam narrows in width and grows in amplitude faster than in local media, with the resulting beam shape being parabolic. Finally, a general initial localized beam evolves to a common shape.
UR - http://www.scopus.com/inward/record.url?scp=85070877569&partnerID=8YFLogxK
U2 - 10.1364/OL.44.003701
DO - 10.1364/OL.44.003701
M3 - Article
C2 - 31368947
AN - SCOPUS:85070877569
SN - 0146-9592
VL - 44
SP - 3701
EP - 3704
JO - Optics Letters
JF - Optics Letters
IS - 15
ER -