Plural Oxygens And Plural Nitrogens Bonded Directly To The Polycyclo Ring System Patents (Class 552/300)
  • Tertiary non-linear optical material
    Patent number: 5679808
    Abstract: The present invention discloses a tertiary non-linear optical material comprising a quinone derivative expressed by any one of the general formulas: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are as defined above, or the formula: ##STR2## The tertiary non-linear material enables the co-existence of large tertiary non-linear optical susceptibility and high-speed response.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: October 21, 1997
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Akira Mizoguchi, Yasuhiro Hattori, Michiru Kubata