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- Junique, Stephan, et al.
(author)
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GaAs-based multiple-quantum-well spatial light modulators fabricated by a wafer-scale process
- 2005
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In: Applied Optics. - 1559-128X .- 2155-3165. ; 44:9, s. 1635-1641
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Journal article (peer-reviewed)abstract
- The design, fabrication, and characterization of large, two-dimensional multiple-quantum-well modulator arrays are presented. Such arrays present a speed advantage compared with competing technologies such as liquid crystals and micromirrors, which are intrinsically limited to the kilohertz range. We discuss the design compromises to reach high-contrast, low-voltage swing optical structures compatible with complementary metal-oxide semiconductor-based integrated circuits and present experimental results. Contrast ratio of 5:1 (limited by the fill factor), variations in uniformity below 1 nm, and frame rates in excess of 10 kHz are demonstrated. Technology maturity for volume production is also discussed.
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