Studies of Third-Order Nonlinear Optical Properties of Polyazine and Its Oligomers

• Nalwa Hari Singh

  Hitachi Research Laboratory, Hitachi, Ltd.

• Hamada Tomoyuki

  Hitachi Research Laboratory, Hitachi, Ltd.

• Kakuta Atsushi

  Hitachi Research Laboratory, Hitachi, Ltd.

• Mukoh Akio

  Hitachi Research Laboratory, Hitachi, Ltd.

抄録

The third-order nonlinear optical properties of a polyazine and its oligomers are reported for the first time. Third-harmonic generation measurements revealed a nonresonant third-order nonlinear optical susceptibility χ⁽³⁾(−3ω; ω, ω, ω) of 1.53×10⁻¹² esu for a pentamer and 8.0×10⁻¹² esu for propylmethylpolyazine at 1.5 μm. Dipole polarizability (α) and second hyperpolarizability (γ) of oligomer model compounds were also calculated by employing the ab initio coupled-perturbed Hartee-Fock (CPHF) theory. Both polarizabilities and χ⁽³⁾(−3ω; ω, ω, ω) increase significantly as the length of π-electron delocalization increases in the polyazine backbone.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 32 (2), L193-L196, 1993

  社団法人応用物理学会

キーワード

• polyazine
• oligomers
• third-order nonlinear optical susceptibility
• third-harmonic generation
• polarizabilities
• <I>ab initio</I> CPHF

詳細情報

• CRID: 1572261552219665024
• NII論文ID: 110003924397
• NII書誌ID: AA10650595
• 本文言語コード: en
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