Full-range, complex spatial light modulator for real-time holography.
We demonstrate a full-range complex and transmissive spatial light modulator (SLM) for simultaneous and independent amplitude and phase modulation of an input wave field. Arbitrary scalar complex optical fields are generated by stacking a pixelated liquid crystal display operating in phase-only (2π) modulation with passive polarization-sensitive components. The principle is based on optical combining the light fields of two neighboring phase-only modulating pixels, which were made orthogonally polarized by a structured half-wave plate, then passing through a birefringent plate to laterally shift one of the beams collinear to the other, and finally bringing to interference by a linear polarizer. Complex modulation by the proposed SLM is experimentally verified in monochrome green operation.
SeeReal Technologies, Sudhausweg 5, 01099 Dresden, Germany. sre@seereal.com
Stephan
S
Reichelt
Ralf
R
Häussler
Gerald
G
Fütterer
Norbert
N
Leister
Hiromi
H
Kato
Naru
N
Usukura
Yuuichi
Y
Kanbayashi