Manfred Eich, Gary C. Bjorklund, et al.
Polymers for Advanced Technologies
Novel second-order nonlinear optical films are prepared from glasses of two organic compounds, (S)-2-N-α-(methylbenzylamino)-5-nitropyridine and 2-N-(cyclooctylamino)-5-nitropyridine, cooled rapidly from the isotropic liquid above the melting point. Extremely slow crystallization in the vicinity of the glass transition temperature Tg permits a polar orientation of these organic molecules under high electric fields at temperatures above Tg. Subsequent cooling to temperatures below Tg freezes in the polarization. A maximum value of the d33 nonlinear susceptibility of 7.5 pm/V and reasonable waveguiding properties are obtained. The poling dynamics of these organic glasses near Tg as monitored by second-harmonic generation exhibit a typical William-Landel-Ferry temperature dependence that is identical to their dielectric relaxation characteristics. © 1989, Optical Society of America.
Manfred Eich, Gary C. Bjorklund, et al.
Polymers for Advanced Technologies
Jan Hendrik Wülbern, Markus Schmidt, et al.
Applied Physics Letters
Manfred Eich, Ayusman Sen, et al.
Proceedings of SPIE 1989
Julius F. Remenar, Craig J. Hawker, et al.
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry