An optical article is disclosed containing contiguously overlying an organic layer for the nonlinear propagation of electromagnetic radiation an amorphous transmission enhancement layer of at least 0.5 .mu.m in thickness transmissive to the nonlinearly propagated electromagnetic radiation, exhibiting a refractive index less than that of the organic layer, and comprised of a low molecular weight aromatic compound.
[EN] PHTHALIMIDE COMPOUNDS FOR FORMING AMORPHOUS LAYERS BY VACUUM DEPOSITION
申请人:EASTMAN KODAK COMPANY
公开号:WO1990005722A1
公开(公告)日:1990-05-31
(EN) There are disclosed phthalimide compounds of structure (I), wherein R and R1 are independently selected from the group consisting of nitro, foramido groups, carbamoyl groups and heterocyclic groups derived from amino or carboxyl groups.(FR) On décrit des composés de phtalimide ayant la structure (I), où R et R1 sont choisis indépendamment parmi le groupe constitué de groupes foramido, nitro, de groupes carbamoyle et de groupes hétérocycliques dérivés des groupes amino ou carboxyle.