Publications [#61519] of Robert D Guenther

Papers Published
  1. Herlocker, J.A. and Ferrio, K.B. and Hendrickx, E. and Guenther, B.D. and Mery, S. and Kippelen, B. and Peyghambarian, N., Direct observation of orientation limit in a fast photorefractive polymer composite, Applied Physics Letters, vol. 74 no. 16 (1999), pp. 2253 - 2255 [1.123816] .

    Abstract:
    The photorefractivity and chromophore orientation in polymer composites were studied. The composites were made from poly-N-vinylcarbazole, N-ethylcarbazole, and (2,4,7-trinitro-9-fluorenylidene)malonodinitrile with a fluorinated cyano-tolane chromophore. The transient photorefractive response in four-wave mixing (FWM) and two-beam coupling (TBC) was measured. Transient FWM revealed a photorefractive response dominated by a fast time constant of 4 ms, while transient ellipsometry revealed an orientational response of only 490 μs.