We investigate properties of dark solitons in nonlocal materials with an arbitrary degree of nonlocality. We employ the variational technique and describe dark solitons, for the first time to our knowledge, in the whole range of degree of nonlocality.
© 2010 Optical Society of America
Original Manuscript: March 19, 2010
Revised Manuscript: May 10, 2010
Manuscript Accepted: May 11, 2010
Published: June 18, 2010
Qian Kong, Qi Wang, Ole Bang, and Wiesław Krolikowski, "Analytical theory of dark nonlocal solitons," Opt. Lett. 35, 2152-2154 (2010)