Minovich, AliaksandrNeshev, DragomirDreischuh, AlexanderKrolikowski, WieslawKivshar, Yuri2015-12-080146-9592http://hdl.handle.net/1885/37741We 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.Keywords: Image reconstruction; Image retrieval; Nonlinear analysis; Nonlocal response functions; Thermal nonlinearity; Nonlinear optics20072015-12-08