We study experimentally and theoretically the nonlocal response of a medium with thermal nonlinearity and show that despite its inherently infinite range it can be accurately characterized by a well-defined nonlocal response function. We retrieve the shape of this function and analyze its transformation with the change of boundaries.
© 2007 Optical Society of America
Original Manuscript: December 15, 2006
Revised Manuscript: March 11, 2007
Manuscript Accepted: April 1, 2007
Published: June 5, 2007
Alexander Minovich, Dragomir N. Neshev, Alexander Dreischuh, Wieslaw Krolikowski, and Yuri S. Kivshar, "Experimental reconstruction of nonlocal response of thermal nonlinear optical media," Opt. Lett. 32, 1599-1601 (2007)