Nonlinear optical activity of bisphenol A polycarbonate and related copolymers

Robert J. Gulotty; Charles A. Langhoff; Stephen E. Bales

doi:10.1117/12.22950

1 December 1990 Nonlinear optical activity of bisphenol A polycarbonate and related copolymers

Robert J. Gulotty, Charles A. Langhoff, Stephen E. Bales

Proceedings Volume 1337, Nonlinear Optical Properties of Organic Materials III; (1990) https://doi.org/10.1117/12.22950
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

A series of structurally modified polycarbonates (PC) have been demonstrated to have second-order nonlinear optical (NLO) activity. The dipolar functionality and NLO activity in these polymers are properties of the polymer backbone. d33 values of 0.08-1.35 x 1O esu were determined by second-harmonic generation (SHG) measurements using a Maker Fringe rotation approach. In-situ measurements of the NLO activity as a function of temperature during the parallel plate poling process show that the onset of the NLO activity occurs primarily near the polymer glass transition temperature. A study of the temporal stability of the NLO activity shows persistent NLO activity for at least 640 days after poling. An effective j per polymer repeat unit is calculated from the data and compared to PPP semi-empirical calculations ofj for model molecules. Agreement is shown to be best for carbonate-containing models of the polymer backbone. The approximate agreement of theory and experiment suggests that the orientability of the NLO active segments in the polymer backbone is adequately described by poling theory.

Citation Download Citation

Robert J. Gulotty, Charles A. Langhoff, and Stephen E. Bales "Nonlinear optical activity of bisphenol A polycarbonate and related copolymers", Proc. SPIE 1337, Nonlinear Optical Properties of Organic Materials III, (1 December 1990); https://doi.org/10.1117/12.22950

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available