Publications [#61512] of Robert D Guenther

Papers Published
  1. Hendrickx, E. and Guenther, B.D. and Zhang, Y. and Wang, J.F. and Staub, K. and Zhang, Q. and Marder, S.R. and Kippelen, B. and Peyghambarian, N., Ellipsometric determination of the electric-field-induced birefringence of photorefractive dyes in a liquid carbazole derivative, Chem. Phys. (Netherlands), vol. 245 no. 1-3 (1999), pp. 407 - 15 [S0301-0104(99)00049-X] .

    Abstract:
    We have used ellipsometric measurements on solutions of 2-dihexylamino-7-dicyanomethylidene-3,4,4a,5,6-pentahydronaphthalene and related polyenes in liquid 9-(2'-ethylhexyl)carbazole to measure the electric-field-induced birefringence at wavelengths of 690 nm and 830 nm. This electric-field-induced birefringence is related to the product of dipole moment squared and the polarizability anisotropy, μ2Δα, and to a large extent determines the dye's photorefractive figure-of-merit (FOM). We show that μ2Δα increases with the conjugation length and report one of the highest μ2Δα values observed so far