chips infrastructure
Thirty-Six Pixels Bend Invisible Light
A 6-by-6 phase-change metasurface gave every microscopic pixel independent control of mid-infrared light through a scalable crossbar circuit.
Summary
A 6-by-6 phase-change metasurface gave every microscopic pixel independent control of mid-infrared light through a scalable crossbar circuit.
MIT researchers built a chip-scale spatial light modulator whose microscopic pixels can independently reshape mid-infrared light. Two perpendicular copper-wire layers address a 6-by-6 array; doped silicon heats phase-change material at selected crossings, switching each pixel between optical states without moving parts. The Nature Communications study demonstrates pixel-level control and reliable switching in a lab device made largely with conventional semiconductor processes. Millions of pixels remain an engineering goal, but the crossbar architecture offers a credible path toward compact gas sensors, thermal imagers, pollution monitors, and optical-computing components.
Why it matters
A 6-by-6 phase-change metasurface gave every microscopic pixel independent control of mid-infrared light through a scalable crossbar circuit.
Limits and context
- Millions of pixels remain an engineering goal, but the crossbar architecture offers a credible path toward compact gas sensors, thermal imagers, pollution monitors, and optical-computing components.
Key claims
A 6-by-6 phase-change metasurface gave every microscopic pixel independent control of mid-infrared light through a scalable crossbar circuit.
Qualification: Millions of pixels remain an engineering goal, but the crossbar architecture offers a credible path toward compact gas sensors, thermal imagers, pollution monitors, and optical-computing components.
Evidence: source-2026-07-13-002
Sources
- MIT News: Pixel-addressable infrared metasurfaceMIT News · secondary reporting
Corrections
No corrections have been recorded for this story.