NLO properties of chiral phthalocyanine films

Tsuyoshi Muto; Tatsuo Wada; Takafumi Sassa; Mutsumi Kimura; Hirofusa Shirai

doi:10.1117/12.510798

10 November 2003 NLO properties of chiral phthalocyanine films

Tsuyoshi Muto, Tatsuo Wada, Takafumi Sassa, Mutsumi Kimura, Hirofusa Shirai

Proceedings Volume 5212, Linear and Nonlinear Optics of Organic Materials III; (2003) https://doi.org/10.1117/12.510798
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We studied linear and nonlinear optical properties of four different phthalocyanines: vanadyl and copper phthalocyanines substituted with chiral branched side chains, (S)(OMeBu)₈VOPc, (S)(OMeBu)₈CuPc; a racemic analogue (R,S)(OMeBu)₈VOPc; vanadyl phthalocyanine substituted with linear side chains, (OBu)₈VOPc. We investigate the molecule packing and their third-order nonlinear optical response in terms of chirality, planarity, and side chain structures. Molecular arrangement of (S)(OMeBu)₈VOPc in the thin films was determined to be a columnar phase with rectangular 2D crystals by X-ray diffraction studies. The thin films of (S)(OMeBu)₈VOPc diplayed CD activity. While, a chloroform solution of this compound did not show any CD. Therefore, we conclude that the CD in the films must result from the chiral aggregation of the molecules. The Χ⁽³⁾ value of the flims of (S)(OMeBu)₈VOPc was determined for 6.7×10^-11esu by third harmonic generation at 1.907 μm and this value was larger than those of (R,S)(OMeBu)₈VOPc, (R,S)(OMeBu)₈CuPc, and (OBu)₈VOPc.

Citation Download Citation

Tsuyoshi Muto, Tatsuo Wada, Takafumi Sassa, Mutsumi Kimura, and Hirofusa Shirai "NLO properties of chiral phthalocyanine films", Proc. SPIE 5212, Linear and Nonlinear Optics of Organic Materials III, (10 November 2003); https://doi.org/10.1117/12.510798

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