Langmuir-Blodgett deposition and second-order non-linear optics of several azobenzene dye polymers

✍ Scribed by J. P. Cresswell; M. C. Petty; I. Ferguson; M. Hutchings; S. Allen; T. G. Ryan; C. H. Wang; B. S. Wherrett

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 314 KB
• Volume: 6
• Category: Article
• ISSN: 1616-301X
• DOI: 10.1002/(sici)1099-0712(199601)6:1<33::aid-amo222>3.0.co;2-5

✦ Synopsis

The Langmuir-Blodgett (LB) film-forming properties of a number of novel azobenzene dye polymers are reported. The linear and second-order non-linear optical properties of the films have been studied using ellipsometry, visible spectroscopy and Pockels effect measurements. As monolayers, the effective electro-optic r-coefficients ranged from 1 to 8.7 pmV.-' When one of the polymers was combined in an alternate layer film (230 layers in total), an r,,-coefficient of 13 pm V-' was achieved. This is one of the highest values reported for a 'thick' LB film.