Rasmussen, Per DalgaardBennet, Francis H.Sukhorukov, AndreyRosberg, Christian R.Bang, OleKrolikowski, WieslawKivshar, YuriNeshev, Dragomir2016-04-112016-04-110146-9592http://hdl.handle.net/1885/100995We demonstrate, both theoretically and experimentally, the existence of nonlocal gap solitons in two-dimensional periodic photonic structures with defocusing thermal nonlinearity. We employ liquid-infiltrated photonic crystal fibers and show how the system geometry can modify the effective response of a nonlocal medium and the properties of two-dimensional gap solitons.The work was supported by the Australian Research Council through Center of Excellence program.3 pages© 2009 Optical Society of America. https://www.osapublishing.org/submit/review/copyright_permissions.cfm#posting One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. http://www.sherpa.ac.uk/romeo/issn/0146-9592/Author can archive post-print (ie final draft post-refereeing).On institutional repository or funder's designated repository 12 months embargo (Sherpa/Romeo 12/9/2017).nonlocalgapsolitonstwo-dimensionalphotonicdefocusingthermalnonlinearitycrystalfibers2009-02-0110.1364/OL.34.0002952016-06-14