MEASUREMENT OF 3RD-ORDER NONLINEARITIES OF SIDE-CHAIN-SUBSTITUTED POLYMERS

• Type: Article in International Scientific Journal
• Date: 1990

Authors

torruellas, we (Author) Other; zanoni, r (Author) Other; marques, mb (Author) FCUP; stegeman, gi (Author) Other; möhlmann, gr (Author) Other; erdhuisen, ewp (Author) Other; horsthuis, whg (Author) Other

Journal

Title: Chemical Physics Letters

Vol. 175

Pages: 267-272

ISSN: 0009-2614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 16 Citations

Scopus - 16 Citations

Other information

Authenticus ID: P-007-B1Q

DOI: 10.1016/0009-2614(90)85554-p

Abstract (EN): Optical third harmonic generation at 1.904, 1.579 and 1.064 ¿m experiments have been performed on thin films fabricated from side chain polymers containing effectively 4-dialkylamino-nitro-benzene, 4-dialkylamino-4¿-nitro-stilbene, 4-dialkylamino-4¿-nitro-diphenylbutadiene, 4-dialkylamino-4¿-nitro-diphenylhexatriene as the side groups. We have measured values of ¿(3) (-3¿; ¿, ¿, ¿) in the range of 0.54 × 10-12 to 7.42 × 10-12 esu, at 1.904 ¿m incident radiation, which are comparable to the nonresonant values found in fully conjugated back-bone polymers [1]. The values of ¿(3) at both 1.904 and 1.579 ¿m change by a factor of 15 as the conjugation length is increased. © 1990.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6