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Second-harmonic generation in Langmuir and Langmuir—Blodgett films of a polymer with pendant chromophore

✍ Scribed by K. Kajikawa; T. Anzai; H. Takezoe; A. Fukuda; S. Okada; H. Matsuda; H. Nakanishi; T. Abe; H. Ito

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 354 KB
Volume: 192
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85437-f

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✦ Synopsis

We demonstrate that the Langmuir-Blodgett (LB) method provides us with polymer films of considerably high x@). The investigation has been made on the monolayer films of PMMA partially substituted for disperse red at the air/water interface (L film) or on a substrate (LB film). The maximum surface susceptibility &_ oftheLtilmis2.1~10-6pm/V

(5.1 x10-15esu). Fairly high bulk susceptibility xzzz= 9.8 pm/V (2.35 X 10-s esu) is obtained in a 3D-layered LB film of high optical quality. The orientational change of the chromophore during compression is also discussed.

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