Abstract
Polymer dispersed liquid crystals are successfully used in display technique because they are of high film-forming capability and photoconductivity inherent in a polymer matrix and of electro-optical and aligning effect in a liquid crystal mesophase. The laser modulation and the holographic recording in the polymer dispersed liquid crystal composites based on some (pi) -conjugate organic compounds doped with fullerenes C<SUB>60</SUB> and C<SUB>70</SUB> have been investigated with a use of cw He-Ne and picosecond pulsed Nd lasers. Both the 80% modulation of laser beams at repetition frequency of 0.2 - 3 Hz and 20% one at 35 Hz have been obtained. The laser induced refractive index in the picosecond range was 0.75 X 10<SUP>-3</SUP> at laser power density of 33 mJ(DOT)cm<SUP>-2</SUP>, that was larger than the one for polymer dispersed liquid crystal doped by dyes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
