.All-optical switching in 3,3'-diethyl-2,2'-thiatricarbocy-anine Iodide dye molecules[J].Optoelectronics Letters,2009,5(4): All-optical switching in 3,3'-diethyl-2,2'-thiatricarbocy-anine Iodide dye molecules Parag Sharma  Sukhdev Roy Department;Physics;Computer;Science;Dayalbagh;Educational;Institute; Abstract:       All-optical switching has been theoretically analyzed in the 3,3'-diethyl-2,2'-thiatricarbocyanine iodide(DTTCI) carbocyanine dye that exhibits large excited-state absorption to achieve high contrast and fast switching.Switching has been analyzed both ns and ps pump pulse widths.It is shown that there is an optimum value of concentration for given peak pump intensity at which maximum modulation can be achieved.We can get 93.84% modulation of transmission of a CW probe laser beam at 532 nm at peak pumping in... Hits: 3780 Download times: 205 View Full Text    Download reader