Translator Disclaimer
15 June 1994 Improved vanadium-dioxide-based infrared spatial light modulator
Author Affiliations +
As was previously reported, a spatial light modulator (SLM) is being fabricated that exploits vanadium dioxide's (VO2) thermally induced transition from a semiconductive-to-metallic state. This transformation causes the film to change from a state of low to high reflectivity in the 3 - 12 micrometers region. Thermal control of the VO2 is provided by an array of p-n junction diodes, each diode constituting the center of a single `pixel' in the SLM. As power is applied to a diode, it generates heat, thereby providing an electrical means of controlling the reflective state of the VO2 film on its surface. The design of the SLM is driven by the need for a high optical contrast, large scale implementation, and high refresh rate. Unfortunately, these requirements are not conducive to each other, so compromises must be made. Optimizations of this design using either microchannel or chemical vapor deposition diamond heat sinks are reported. Both of these simulated designs attained pixel switching times in excess of 650 Hz.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David W. Blodgett, Michael J. Elko, and Philip J. McNally "Improved vanadium-dioxide-based infrared spatial light modulator", Proc. SPIE 2223, Characterization and Propagation of Sources and Backgrounds, (15 June 1994);


Vanadium-dioxide-based infrared spatial light modulators
Proceedings of SPIE (August 30 1993)
Infrared reflective optical modulator
Proceedings of SPIE (April 19 1998)
Scattering and absorption of CVD diamond windows
Proceedings of SPIE (December 13 1992)
Designing new classes of high power high brightness VECSELs
Proceedings of SPIE (October 15 2005)
Ultrafast Bragg switching induced by a phase transition in a...
Proceedings of SPIE (September 14 2004)

Back to Top