Title :
Quadratically enhanced second harmonic generation from interleaved Langmuir-Blodgett multilayers
Author :
Shihong Ma ; Kui Han ; Xingze Lu ; Gongming Wang ; Wencheng Wang ; Zhiming Zhang
Author_Institution :
Lab. of Laser Phys. & Opt., Fudan Univ., Shanghai, China
Abstract :
In this paper we report a new type of two-legged amphiphilic molecule spacers 1,10 bistearyl-4,6,13,15-Ictraene-18-nitrogencrown-6(NC), the principle being that the single leg of the optical nonlinear hemicyanine derivative (HD) (DAEP) dye might insert in the spacer molecules thus fastening the interleaved Langmuir Blodgett (LB) multilayers, and improve the degree of order and structural stability. Quadratic second harmonic intensity enhancement has been achieved up to 114 layer (57 bilayers) in the above mentioned LB multilayers
Keywords :
Langmuir-Blodgett films; optical films; optical harmonic generation; organic compounds; stability; 1,10 bistearyl-4,6,13,15-Ictraene-18-nitrogencrown-6(NC); DAEP dye; LB multilayers; bilayers; interleaved Langmuir Blodgett multilayers; interleaved Langmuir-Blodgett multilayers; optical nonlinear hemicyanine derivative; quadratic second harmonic intensity enhancement; quadratically enhanced second harmonic generation; spacer molecules; structural stability; two-legged amphiphilic molecule spacers; Frequency conversion; Glass; High definition video; Leg; Nonhomogeneous media; Nonlinear optics; Optical films; Optical harmonic generation; Optical polymers; Physics;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 1994. NLO '94 IEEE
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1473-5
DOI :
10.1109/NLO.1994.470871
