Optical phase conjugation in azo-dye doped chiral liquid crystal
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland)
We report on optical phase conjugation phenomenon observed in chiral nematic liquid crystal showing band gap type Bragg reflection. The phase conjugate to the signal beam is observable only in the small temperature interval when the Bragg condition is fulfilled and only for circularly polarized light. The optical phase conjugation signals were observed at low cw laser light intensities (<100 mW/cm{sup 2}, {lambda} = 532 nm). Estimated value of third order optical susceptibility {chi}{sup (3)} = 2.8 Multiplication-Sign 10{sup -17} m{sup 2}/V{sup 2} is attributed to enhancement due to photoisomerisation of azo-dye (disperse red 1) inducing molecular reorientation process of liquid crystal molecules.
- OSTI ID:
- 22080491
- Journal Information:
- Applied Physics Letters, Vol. 101, Issue 16; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optical data recording by laser pulses in liquid-crystal cells with an azo-modified surface
Photoluminescence analysis of self induced planer alignment in azo dye dispersed nematic liquid crystal complex
Photoinduced translational molecular mobility in solid nanostructured azo dye films
Journal Article
·
Sat Mar 31 00:00:00 EST 2001
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:22080491
Photoluminescence analysis of self induced planer alignment in azo dye dispersed nematic liquid crystal complex
Journal Article
·
Thu Apr 24 00:00:00 EDT 2014
· AIP Conference Proceedings
·
OSTI ID:22080491
Photoinduced translational molecular mobility in solid nanostructured azo dye films
Journal Article
·
Wed Nov 30 00:00:00 EST 2011
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:22080491
+2 more