Described herein are the materials, mechanisms and procedures for
optimizing various performance parameters of HPDLC optical devices in
order to meet differing performance requirements. These optimization
tailoring techniques include control and independent optimization of
switchable HPDLC optical devices to meet the demanding requirements of
anticipated applications for, inter alia, the telecommunications and
display industries. These techniques include optimization of diffraction
efficiency, i.e., index modulation, polarization dependence control,
haze, cosmetic quality, control of response and relaxation time, voltage
driving for on and off switching, and material uniformity. This control
and independent optimization tailors properties of switchable HPDLC
optical devices according to the specific requirements of the application
of the switchable HPDLC optical device. The invention disclosed herein
retains the desirable attributes of the multi-functional acrylate system
for forming HPDLC optical devices, but adds new materials to the acrylate
system and/or new process control to the recording to optimize
performance parameters as may be needed for specific applications. This
results in high optical quality switchable holograms with good
diffraction efficiency and low, stable switching voltage.