Organic Glasses: A New Class of Photorefractive Materials
The performance of amorphous organic photorefractive (PR) materials in applications such as optical data storage is generally limited by the concentration of active molecules (chromophores) that can be incorporated into the host without forming a crystalline material with poor optical quality. In polymeric PR systems described previously, performance has been limited by the necessity of devoting a large fraction of the material to inert polymer and plasticizing components in order to ensure compositional stability. A new class of organic PR materials composed of multifunctional glass-forming organic chromophores is described that have long-term stability and greatly improved PR properties.
Lundquist
PM
Almaden Research Center, IBM Research Division, 650 Harry Road, San Jose, CA 95120-6099, USA.
Wortmann
R
Geletneky
C
Twieg
RJ
Jurich
M
Lee
VY
Moylan
CR
Burland
DM