| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic nonlinear optical material with high light emission efficiency which has a large two-photon absorption cross-sectional area, which easily induces two-photon absorption, which has large Stokes shift and which efficiently gives fluorescent light generating by the two-photon excitation. <P>SOLUTION: The organic nonlinear optical material contains a compound expressed by general formula (I): (Ar<SP>2</SP>)<SB>m</SB>-Ar<SP>1</SP>-(Ar<SP>3</SP>)<SB>n</SB>as at least part of the structural component. In formula (I), Ar<SP>1</SP>represents a bivalent heterocyclic group expressed by general formula (II), each of Ar<SP>2</SP>and Ar<SP>3</SP>independently represents an aromatic heterocyclic group or an aromatic hydrocarbon cyclic group which may have a substituent, each of m and n represents an integer 1 to 4, and when m and/or n is≥2, two or more of Ar<SP>2</SP>and/or Ar<SP>3</SP>may be the same or different from each other, or Ar<SP>2</SP>and Ar<SP>1</SP>, or Ar<SP>1</SP>and Ar<SP>3</SP>are coupled with each conjugate connected. In formula (II), ring A and ring Z represent condensed rings having two carbon atoms in common, and each may have a substituent. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
