We present a theory for a new type of optical spatial soliton that is based on the angle hole burning mechanism of photoisomerization in some polymers. We predict that the photoisomerization nonlinearity can support steady-state dark and bright spatial solitons in the polymer. We also discuss the dependence of the <b>FWHM</b> of the spatial soliton on wavelengths of the background beams and on the ratio of the intensity of the background beam to that of the signal beam.
© 2004 Optical Society of America
Xiao-sheng Wang, Wei-long She, and Wing-kee Lee, "Optical spatial solitons supported by photoisomerization nonlinearity in a polymer," Opt. Lett. 29, 277-279 (2004)