We report measurements of the frequency dependence of anomalous second-order electric susceptibilities of polymer films containing hyperpolarizable chromophore guest molecules and poled using coplanar electrodes. The frequency dependence, polarization dependence, and magnitude of the observed second-order susceptibilities are radically different from those of conventional corona-field poling experiments and cannot be explained by isolated chromophore models. These observations and the results of sum-over-states perturbative electronic structure calculations for the importance of positively charged chromophore aggregates.
|Titolo:||Spectral characteristics of second-order optical nonlinearities in poled polymer films containing charged chromophore aggregates|
|Data di pubblicazione:||1997|
|Citazione:||Spectral characteristics of second-order optical nonlinearities in poled polymer films containing charged chromophore aggregates / Lundquist PM; Yitzchaik S; Marks TJ; Wong GK; Di Bella S; Cohen R; Berkovic G. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - 55:21(1997), pp. 14055-14058.|
|Appare nelle tipologie:||1.1 Articolo in rivista|