Functionalized heteroaromatic compounds for nonlinear optical applications
申请人:ENICHEM S.p.A.
公开号:EP0493716A1
公开(公告)日:1992-07-08
Heteroaromatic nonlinear optical compounds, alone, and in combination with a chemically inert medium to provide a combination exhibiting second order nonlinear optical properties, including combinations that dispose a layer of the nonlinear optical compounds on chemically inert substrates, blend guest molecules of the nonlinear optical compounds with a chemically inert host matrix of a thermoplastic polymer, or covalently bond pendant side chains of the nonlinear optical compounds to chemically inert polymers.
Optical article exhibiting a high level of second order polarization
申请人:Eastman Kodak Company
公开号:US04792208A1
公开(公告)日:1988-12-20
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10.sup.-9 electrostatic units comprised of polar aligned noncentrosymmetric molecular dipoles. The molecular dipoles have an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor sulfonyl moiety.
Optical article containing a linear polymer exhibiting a high level of
申请人:Eastman Kodak Company
公开号:US04900127A1
公开(公告)日:1990-02-13
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10.sup.-9 electrostatic units comprised of a linear polymer containing as pendant groups polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor moiety to permit oscillation of the molecular dipole between a ground state exhibiting a first dipole moment and an excited state exhibiting a differing dipole moment. The linear polymer contains repeating units derived from vinyl addition polymerization, at least 5 percent of the repeating units incorporate the molecular dipoles as pendant groups, and the molecular dipoles include a sulfonyl electron acceptor moiety.
An optical article containing a linear polymer exhibiting a high level of second order polarization susceptibility
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0313477A2
公开(公告)日:1989-04-26
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10-9 electrostatic units comprised of a linear polymer containing as pendant groups polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated π bonding system to an electron acceptor moiety to permit oscillation of the molecular dipole between a ground state exhibiting a first dipole moment and an excited state exhibiting a differing dipole moment. The linear polymer contains repeating units derived from vinyl addition polymerization, at least 5 percent of the repeating units incorporate the molecular dipoles as pendant groups, and the molecular dipoles include a sulfonyl electron acceptor moiety.
An optical article containing a linear condensation polymer exhibiting a high level of second order polarization susceptibility
申请人:EASTMAN KODAK COMPANY
公开号:EP0370922A2
公开(公告)日:1990-05-30
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10⁻⁹ electrostatic units comprised of a linear polymer containing polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated π bonding system to an electron acceptor moiety to permit oscillation of the molecular dipole between a ground state exhibiting a first dipole moment and an excited state exhibiting a differing dipole moment. The linear polymer is a condensation polymer including in its backbone a plurality of molecular dipoles including sulfonyl electron acceptor moieties sequentially arranged to reinforce electron displacement along the polymer backbone.