Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Second-harmonic generation studies of differences in molecular orientation of Langmuir–Blodgett films fabricated by vertical and horizontal dipping techniques

Not Accessible

Your library or personal account may give you access

Abstract

Second-harmonic generation (SHG) studies have been carried out on Langmuir–Blodgett films of 2-docosyl-amino-5-nitropyridine that were transferred by two different dipping techniques: vertical y-type and horizontal x-type depositions. The SHG behavior of horizontally transferred films is remarkably different from that of the vertically transferred films. In y-type films the SHG is due mainly to the in-plane component χyyy(2) (which is along the dipping axis) of the second-order nonlinear optical susceptibility tensor and χxxx(2) is negligible. In the case of x-type films, the SHG is due to the in-plane χ(2) tensor components but χyyy(2) and χxxx(2) have comparable magnitudes. In both films the nonlinear optical chromophores lie almost flat with respect to the plane of the substrate. The cancellation of χxxx(2) in y-type films is due to the preferential orientation of molecular domains along the dipping axis. In horizontally transferred films, molecular domains seem to be randomly distributed on the surface.

© 1993 Optical Society of America

Full Article  |  PDF Article
More Like This
Blue and green Čerenkov-type second-harmonic generation in a polymeric Langmuir–Blodgett waveguide

Koen Clays, Nancy J. Armstrong, and Thomas L. Penner
J. Opt. Soc. Am. B 10(5) 886-893 (1993)

Linear and nonlinear optical behaviors of Langmuir–Blodgett multilayers of push–pull tolan derivatives

Hiroo Nakahara, Wei Liang, Hiromi Kimura, Tatsuo Wada, and Hiroyuki Sasabe
J. Opt. Soc. Am. B 15(1) 458-465 (1998)

Second-harmonic generation investigation of Langmuir–Blodgett 2-docosylamino-5-nitropyradine films

Pierre Provencher, Marguerite-Marie Denariez Roberge, Alexandre Suau, Ke Tian, Gaétan Munger, and Roger Leblanc
J. Opt. Soc. Am. B 12(8) 1406-1410 (1995)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (14)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved