Second-order nonlinear optical properties of highly symmetric chiral thin films

Authors
Verbiest, T Van Elshocht, S Persoons, A Nuckolls, C Phillips, KE Katz, TJ
Citation
T. Verbiest et al., Second-order nonlinear optical properties of highly symmetric chiral thin films, LANGMUIR, 17(16), 2001, pp. 4685-4687
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
07437463 → ACNP
Volume
17
Issue
16
Year of publication
2001
Pages
4685 - 4687
Database
ISI
SICI code
0743-7463(20010807)17:16<4685:SNOPOH>2.0.ZU;2-U
Abstract
We demonstrate second-harmonic generation in highly symmetric thin films of chiral molecules. The films were prepared by spin-coating, and no external force (such as electric field poling) was used to induce noncentrosymmetry . The films have a nonpolar D-n symmetry with second-order susceptibility v alues of 2-9 pm/V. Furthermore, the samples are stable at elevated temperat ures.