χ(3) of M-X chains

Y. Iwasa; E. Funatsu; T. Koda; M. Yamashita; H. Kobayashi; K. Kubodera

doi:10.1080/10587259208046873

χ⁽³⁾ of M-X chains

Y. Iwasa, E. Funatsu, T. Koda, M. Yamashita, H. Kobayashi, K. Kubodera

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The third-order nonlinear optical susceptibility has been investigated for oriented thin films of halogen bridged platinum complexes. The | χ (3)(−3ω;ω,ω,ω) | of a σ-conjugated polysilane, poly(di-n-hexylsilane) (PDHS), by means of third-harmonic generation (THG) measurement, in the fundamental photon energy region from 0.56 eV to 2.15 eV. The obtained | χ ⁽³⁾(−3ω;ω,ω,ω) | spectrum associated with the third harmonic generation (THG) was measured by the Maker fringe method in the region of fundamental wavelength 0.6µm~lµm and 1.6µm~2.2µm. In the | χ⁽³⁾ | spectra, we found a peak structure at ω ~ 1.8eV that is attributable to a two-photon resonance to the optically forbidden charge transfer exciton. The | χ⁽³⁾ | value was in the order of 10⁻¹¹esu that is comparable to the π-conjugated polymers. Common features of NLO processes for the one-dimensional semiconductors are discussed.

Original language	English
Pages (from-to)	37-42
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Volume	217
Issue number	1
DOIs	https://doi.org/10.1080/10587259208046873
Publication status	Published - 1992 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "χ(3) of M-X chains",

abstract = "The third-order nonlinear optical susceptibility has been investigated for oriented thin films of halogen bridged platinum complexes. The | χ (3)(−3ω;ω,ω,ω) | of a σ-conjugated polysilane, poly(di-n-hexylsilane) (PDHS), by means of third-harmonic generation (THG) measurement, in the fundamental photon energy region from 0.56 eV to 2.15 eV. The obtained | χ (3)(−3ω;ω,ω,ω) | spectrum associated with the third harmonic generation (THG) was measured by the Maker fringe method in the region of fundamental wavelength 0.6µm~lµm and 1.6µm~2.2µm. In the | χ(3) | spectra, we found a peak structure at ω ~ 1.8eV that is attributable to a two-photon resonance to the optically forbidden charge transfer exciton. The | χ(3) | value was in the order of 10−11esu that is comparable to the π-conjugated polymers. Common features of NLO processes for the one-dimensional semiconductors are discussed.",

author = "Y. Iwasa and E. Funatsu and T. Koda and M. Yamashita and H. Kobayashi and K. Kubodera",

year = "1992",

month = jun,

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doi = "10.1080/10587259208046873",

language = "English",

volume = "217",

pages = "37--42",

journal = "Molecular Crystals and Liquid Crystals",

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TY - JOUR

T1 - χ(3) of M-X chains

AU - Iwasa, Y.

AU - Funatsu, E.

AU - Koda, T.

AU - Yamashita, M.

AU - Kobayashi, H.

AU - Kubodera, K.

PY - 1992/6/1

Y1 - 1992/6/1

N2 - The third-order nonlinear optical susceptibility has been investigated for oriented thin films of halogen bridged platinum complexes. The | χ (3)(−3ω;ω,ω,ω) | of a σ-conjugated polysilane, poly(di-n-hexylsilane) (PDHS), by means of third-harmonic generation (THG) measurement, in the fundamental photon energy region from 0.56 eV to 2.15 eV. The obtained | χ (3)(−3ω;ω,ω,ω) | spectrum associated with the third harmonic generation (THG) was measured by the Maker fringe method in the region of fundamental wavelength 0.6µm~lµm and 1.6µm~2.2µm. In the | χ(3) | spectra, we found a peak structure at ω ~ 1.8eV that is attributable to a two-photon resonance to the optically forbidden charge transfer exciton. The | χ(3) | value was in the order of 10−11esu that is comparable to the π-conjugated polymers. Common features of NLO processes for the one-dimensional semiconductors are discussed.

AB - The third-order nonlinear optical susceptibility has been investigated for oriented thin films of halogen bridged platinum complexes. The | χ (3)(−3ω;ω,ω,ω) | of a σ-conjugated polysilane, poly(di-n-hexylsilane) (PDHS), by means of third-harmonic generation (THG) measurement, in the fundamental photon energy region from 0.56 eV to 2.15 eV. The obtained | χ (3)(−3ω;ω,ω,ω) | spectrum associated with the third harmonic generation (THG) was measured by the Maker fringe method in the region of fundamental wavelength 0.6µm~lµm and 1.6µm~2.2µm. In the | χ(3) | spectra, we found a peak structure at ω ~ 1.8eV that is attributable to a two-photon resonance to the optically forbidden charge transfer exciton. The | χ(3) | value was in the order of 10−11esu that is comparable to the π-conjugated polymers. Common features of NLO processes for the one-dimensional semiconductors are discussed.

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