IN-SITU OBSERVATION OF SHG AND ITS ORIGIN IN VACUUM-DEPOSITED COPPER PHTHALOCYANINE FILM

Authors
HOSHI H YAMADA T KAJIKAWA K ISHIKAWA K TAKEZOE H FUKUDA A
Citation
H. Hoshi et al., IN-SITU OBSERVATION OF SHG AND ITS ORIGIN IN VACUUM-DEPOSITED COPPER PHTHALOCYANINE FILM, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 267, 1995, pp. 1-6
Citations number
5
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
267
Year of publication
1995
Pages
1 - 6
Database
ISI
SICI code
1058-725X(1995)267:<1:IOOSAI>2.0.ZU;2-L
Abstract
In situ observation system of second harmonic generation (SHG) during vacuum deposition has been constructed. It allows us to observe SHG fr om transmitted and reflected directions. The advantages of the system is summarized in the following two points: (1) Detailed dependence of SHG on film-thickness can be easily obtained. (2) The measurement can be achieved without exposing films to the atmosphere. This system was applied to vacuum evaporated films of copper phthalocyanine (CuPc) to clarify the origin of SH activity in such a centrosymmetric molecule. We suggest the importance of quadrupolar contribution on the basis of the thickness dependence of SHG and the comparison with the theoretica l analysis.