The dispersions of the fifth- and seventh-order nonlinear optical susceptibilities, χ(5)113333 and χ(7)11333333 , respectively, of a polydiacetylene film, poly(4-BCMU), are determined through electroabsorption spectroscopy. To our knowledge this is the first time that a spectrum of seventh-order nonlinear optical susceptibility has been obtained by means of electro-optic measurements.
© 2000 Optical Society of America
Ke Yang, Jayant Kumar, Dong-Chan Lee, Daniel J. Sandman, and Sukant Tripathy, "Determining the dispersions of the fifth- and seventh-order nonlinear optical susceptibilities of a poly(4-BCMU) film through electroabsorption spectroscopy," Opt. Lett. 25, 1186-1188 (2000)