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Towards a dynamically reconfigurable pixelated reflective display: Focused ion beam for phase-change metapixel structures by Yimam, Daniel T.; Liang, Minpeng; Ye, Jianting; Kooi, Bart J. is a scholarly article available to read on EtoBox.

What is Towards a dynamically reconfigurable pixelated reflective display: Focused ion beam for phase-change metapixel structures about?

The switching and optical properties of phase-change thin films are actively investigated for future smart optical devices. The possibility of having more than one stable state, the large optical contrast between phases, and the fast and reversible switching are some attractive properties driving the research interest. Optical devices based on phase change alloys are considered the frontier contenders for tunable photonics. The combination of vivid structural color formation, with partial amorphization/crystallization of phase change alloys, and the associated optical tunability could be integrated into an energy-efficient reflective display device with high pixel density. This work demonstrates a contrast formation due to relative height differences from isolated pixelated structures. A reflective heterostructure device consisting of a low-loss Sb2Se3 alloy on a gold substrate was produced. With a focused ion beam, a pixelated metasurface structure was produced. Moreover, the ability to create local height differences using an ion beam was employed to create a structural color combination mimicking traditional LED like RGB pixels. We believe our approach in creating metapixels on

Author

Yimam, Daniel T.; Liang, Minpeng; Ye, Jianting; Kooi, Bart J.

Published

2024

Language

EN