Optical element having non-linear optical properties
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 1, 1991
Grant Date -
N/A
app pub date -
May 5, 1988
filing date -
May 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical element, such as a wave guide, having non-linear optical properties, suitable for use in optical devices in which it is desirable to alter the characteristics of the light, comprising a transparent or reflecting substrate having at least a partial superficial coating comprising alternating monolayers of a first non-linear optical (NLO) compound of the formula: ##STR1## wherein R is an non-hydrophilic aliphatic or cycloaliphatic group containing from 8 to 40 carbon atoms; m is 1 or 2; R.sup.1 is NO.sub.2, CN or COOR.sup.2 ; R.sup.2 is H or C.sub.1-4 -alkyl; n is from 1 to 4; and R.sup.3 is H, a metal or a group containing a tetravalent N atom and a second NLO compound of the formula: ##STR2## wherein T is H, a metal or a group containing a tetravalent N atom; X is S, O, ##STR3## T.sup.1 is NO.sub.2, CN or COOY; Y is selected from H, C.sub.1-4 -alkyl, a metal or a group containing a tetravalent N atom; T.sup.2 and T.sup.3 are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms; T.sup.4 and T.sup.5 are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms; and T.sup.6 and T.sup.7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms; or T.sup.4 and T.sup.6 together comprise ring fused to Ring A and T.sup.5 and T.sup.7 are as hereinbefore defined; or T.sup.5 and T.sup.7 together comprise ring fused to Ring A and T.sup.4 and T.sup.6 are as hereinbefore defined; or T.sup.2 and T.sup.4 together with the N atom to which T.sup.2 is attached form a ring fused to Ring A and T.sup.3 and T.sup.5 are as hereinbefore defined; or T.sup.3 and T.sup.5 together with the N atom to which T.sup.3 is attached form a ring fused to Ring A and T.sup.2 and T.sup.4 are as hereinbefore defined; provided there are, in total, from 8 to 40 carbon atoms in one or two of the groups independently represented by T.sup.2, T.sup.3, T.sup.4 and T.sup.5.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully