Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Viscoelastic spatial light modulator with active matrix addressing

: Tepe, R.; Gerhard-Multhaupt, R.; Brinker, W.; Molzow, W.-D.

Applied optics 28 (1989), No.22, pp.4826-34
ISSN: 0003-6935
ISSN: 1539-4522
ISSN: 1559-128X
Journal Article
Fraunhofer HHI ()
insulated gate field effect transistors; optical information processing; optical modulation; schlieren systems; viscoelasticity; thin metallized viscoelastic layers; active matrix addressing; active matrix; schlieren-optical light valve; time behavior; spatial frequency response; incompressible deformable spatial light modulators; detailed theoretical analysis; electrostatic field distribution; elastomer material; thin mirror electrode; viscoelastic spatial light modulators; high resolution light valve projectors; optical information processing devices

Thin metallized viscoelastic layers, addressed by an active matrix of MOSFETs and used in a schlieren-optical light valve, are described. The time behavior and spatial frequency response of these incompressible deformable spatial light modulators are evaluated on the basis of a detailed theoretical analysis which takes into account the electrostatic field distribution, viscoelasticity of the elastomer material, and elasticity of the thin mirror electrode. Some of the theoretical predictions are compared to corresponding experimental results. The findings indicate satisfactory deformation properties of viscoelastic spatial light modulators for such applications as high resolution light valve projectors and optical information processing devices.