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    1.
    发明专利
    未知

    公开(公告)号：AT85135T

    公开(公告)日：1993-02-15

    申请号：AT87304478

    申请日：1987-05-20

    Applicant: TORAY INDUSTRIES

    Inventor： TSUNEKAWA TETSUYA ,  GOTOH TETSUYA ,  EGAWA KEIICHI

    IPC: C09K9/02 ,  C07C251/24 ,  C07D319/18 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361

    Abstract: The present invention provides an organic nonlinear optical material comprising a benzylidene-aniline derivative having an electron-donating substituent introduced at the 4-position and an electron-accepting substituent introduced at the 4'-position, by following two contrivances: (l) selecting as the conjugated pi electronic system a benzylidene-aniline derivative having a large molecular hyperpolarizability and yet a dipole moment as small as those of benzene derivatives, and (2) introducing a molecular alignment-regulating substituent. The centrosymmetry in the bulk state of the material, for example, in the crystal state, is destroyed and the molecular alignment is regulated to such a bulk structure in that the optical nonlinearity possessed by the molecule is effectively utilized. The material shows even a large optical nonlinearity never attained by the conventional techniques. The intermolecular cohesive force due to the pi electron interaction between the molecules in the present invention is larger than that between benzene derivatives. Consequently, the material has, comparatively, a high melting point, a low subliming property, and a low water-absorbing property. In conclusion, a practically invaluable nonlinear optical material having a high durability in the bulk state and an excellent resistance to laser damage can be provided.

    2.
    发明专利
    未知

    公开(公告)号：DE3878772D1

    公开(公告)日：1993-04-08

    申请号：DE3878772

    申请日：1988-07-28

    Applicant: TORAY INDUSTRIES ,  NIPPON TELEGRAPH & TELEPHONE

    Inventor： GOTOH TETSUYA ,  KONDOH TOSIYUKI ,  EGAWA KEIICHI ,  KUBODERA KEN-ICHI

    IPC: G02F1/35 ,  C09K9/00 ,  C30B7/00 ,  G02F1/355 ,  G02F1/361

    Abstract: A third-order nonlinear optical element (11) showing wide employable wave-length range of input light, high speed operation and low light intensity of input light is disclosed. The third-order nonlinear optical element (11) of the present invention has at least two substantially optically smooth surfaces and comprise a charge-transfer complex consisting essentially of (i) at least one electron-accepting component selected from the group consisting of cyano compounds, quinones, nitro compounds, acid anhydride, halogenes, and halogenated carbons; and (ii) at least one electron-donating component selected from the group consisting of unsaturated cyclic hydrocarbon compounds, unsaturated heterocyclic compounds, chalcogen-containing compounds, quarternary unsaturated heterocyclic compounds and metals. The charge-transfer complex of nonlinear optical element (11) of the present invention is formed of said at least one electron-accepting component and said at least one electron-donating component in the ground state and at least one of said components is an organic compound having pi -conjugated system.

    3.
    发明专利
    未知

    公开(公告)号：DE68918866T2

    公开(公告)日：1995-02-16

    申请号：DE68918866

    申请日：1989-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： GOTOH TETSUYA ,  TSUNEKAWA TETSUYA ,  FUKUDA SEIJI ,  MATAKI HIROSHI ,  EGAWA KEIICHI

    IPC: C07C205/00 ,  C07C205/35 ,  G02F1/03 ,  G02F1/35 ,  G02F1/361

    Abstract: PCT No. PCT/JP89/00635 Sec. 371 Date Feb. 27, 1991 Sec. 102(e) Date Feb. 27, 1991 PCT Filed Jun. 27, 1989 PCT Pub. No. WO91/00543 PCT Pub. Date Jan. 10, 1991.The present invention relates to a high performance nonlinear optical device by utilizing an optical medium of large second order nonlinear optical effects, which has acceptable processability and stability. The second-order nonlinear optical device of the present invention comprises an optical element of a monoclinic crystal of 4-hydroxy-3-methoxy-4'-nitrostilbene represented by the formula (I): (I) said crystal belonging to space group P21, point group #4, said optical element having at least one substantially optically smooth surface.

    4.
    发明专利
    未知

    公开(公告)号：DE3878772T2

    公开(公告)日：1993-06-24

    申请号：DE3878772

    申请日：1988-07-28

    Applicant: TORAY INDUSTRIES ,  NIPPON TELEGRAPH & TELEPHONE

    Inventor： GOTOH TETSUYA ,  KONDOH TOSIYUKI ,  EGAWA KEIICHI ,  KUBODERA KEN-ICHI

    IPC: G02F1/35 ,  C09K9/00 ,  C30B7/00 ,  G02F1/355 ,  G02F1/361

    Abstract: A third-order nonlinear optical element (11) showing wide employable wave-length range of input light, high speed operation and low light intensity of input light is disclosed. The third-order nonlinear optical element (11) of the present invention has at least two substantially optically smooth surfaces and comprise a charge-transfer complex consisting essentially of (i) at least one electron-accepting component selected from the group consisting of cyano compounds, quinones, nitro compounds, acid anhydride, halogenes, and halogenated carbons; and (ii) at least one electron-donating component selected from the group consisting of unsaturated cyclic hydrocarbon compounds, unsaturated heterocyclic compounds, chalcogen-containing compounds, quarternary unsaturated heterocyclic compounds and metals. The charge-transfer complex of nonlinear optical element (11) of the present invention is formed of said at least one electron-accepting component and said at least one electron-donating component in the ground state and at least one of said components is an organic compound having pi -conjugated system.

    5.
    发明专利
    未知

    公开(公告)号：DE68918866D1

    公开(公告)日：1994-11-17

    申请号：DE68918866

    申请日：1989-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： GOTOH TETSUYA ,  TSUNEKAWA TETSUYA ,  FUKUDA SEIJI ,  MATAKI HIROSHI ,  EGAWA KEIICHI

    IPC: C07C205/00 ,  C07C205/35 ,  G02F1/03 ,  G02F1/35 ,  G02F1/361

    Abstract: PCT No. PCT/JP89/00635 Sec. 371 Date Feb. 27, 1991 Sec. 102(e) Date Feb. 27, 1991 PCT Filed Jun. 27, 1989 PCT Pub. No. WO91/00543 PCT Pub. Date Jan. 10, 1991.The present invention relates to a high performance nonlinear optical device by utilizing an optical medium of large second order nonlinear optical effects, which has acceptable processability and stability. The second-order nonlinear optical device of the present invention comprises an optical element of a monoclinic crystal of 4-hydroxy-3-methoxy-4'-nitrostilbene represented by the formula (I): (I) said crystal belonging to space group P21, point group #4, said optical element having at least one substantially optically smooth surface.

    8.
    发明专利
    未知

    公开(公告)号：DE3783807T2

    公开(公告)日：1993-06-17

    申请号：DE3783807

    申请日：1987-05-20

    Applicant: TORAY INDUSTRIES

    Inventor： TSUNEKAWA TETSUYA ,  GOTOH TETSUYA ,  EGAWA KEIICHI

    IPC: C09K9/02 ,  C07C251/24 ,  C07D319/18 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361

    Abstract: The present invention provides an organic nonlinear optical material comprising a benzylidene-aniline derivative having an electron-donating substituent introduced at the 4-position and an electron-accepting substituent introduced at the 4'-position, by following two contrivances: (l) selecting as the conjugated pi electronic system a benzylidene-aniline derivative having a large molecular hyperpolarizability and yet a dipole moment as small as those of benzene derivatives, and (2) introducing a molecular alignment-regulating substituent. The centrosymmetry in the bulk state of the material, for example, in the crystal state, is destroyed and the molecular alignment is regulated to such a bulk structure in that the optical nonlinearity possessed by the molecule is effectively utilized. The material shows even a large optical nonlinearity never attained by the conventional techniques. The intermolecular cohesive force due to the pi electron interaction between the molecules in the present invention is larger than that between benzene derivatives. Consequently, the material has, comparatively, a high melting point, a low subliming property, and a low water-absorbing property. In conclusion, a practically invaluable nonlinear optical material having a high durability in the bulk state and an excellent resistance to laser damage can be provided.

    9.
    发明专利
    未知

    公开(公告)号：DE3783807D1

    公开(公告)日：1993-03-11

    申请号：DE3783807

    申请日：1987-05-20

    Applicant: TORAY INDUSTRIES

    Inventor： TSUNEKAWA TETSUYA ,  GOTOH TETSUYA ,  EGAWA KEIICHI

    IPC: C09K9/02 ,  C07C251/24 ,  C07D319/18 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361

    Abstract: The present invention provides an organic nonlinear optical material comprising a benzylidene-aniline derivative having an electron-donating substituent introduced at the 4-position and an electron-accepting substituent introduced at the 4'-position, by following two contrivances: (l) selecting as the conjugated pi electronic system a benzylidene-aniline derivative having a large molecular hyperpolarizability and yet a dipole moment as small as those of benzene derivatives, and (2) introducing a molecular alignment-regulating substituent. The centrosymmetry in the bulk state of the material, for example, in the crystal state, is destroyed and the molecular alignment is regulated to such a bulk structure in that the optical nonlinearity possessed by the molecule is effectively utilized. The material shows even a large optical nonlinearity never attained by the conventional techniques. The intermolecular cohesive force due to the pi electron interaction between the molecules in the present invention is larger than that between benzene derivatives. Consequently, the material has, comparatively, a high melting point, a low subliming property, and a low water-absorbing property. In conclusion, a practically invaluable nonlinear optical material having a high durability in the bulk state and an excellent resistance to laser damage can be provided.

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