Journal
ADVANCED MATERIALS
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202310294
Keywords
independent-encoding; light-emitting; meta-displays; quantum dots
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Light-emitting metasurfaces offer precise light modulation and can manipulate both pumping and fluorescence light simultaneously, expanding encoding freedom. This design strategy paves the way for multiplexing optical displays, information storage, and next-generation wearable displays.
The advent of intelligent display devices has given rise to diverse and complex demands for miniature light-emitting devices. Light-emitting metasurfaces have emerged as a practical and efficient means of achieving precise light modulation. However, their practicality is limited by certain constraints. First, there is a need for further exploration of the ability to manipulate both pumping and emitting light simultaneously. Second, there is currently no encoding freedom in multi-dimensional emitting light. To address these concerns, using meta-atoms is proposed to encode both fluorescence and pumping light independently, and expand the encoding freedom with different incident wavevector directions. A light-emitting metasurface with quad-fold multiplex encoding meta-displays, including dual scattering images and dual fluorescence images, is further demonstrated. This design strategy not only manipulates both pumping and fluorescence light but also broadens encoding freedom for comprehensive multi-functionality. This can pave the way for multiplexing optical displays, information storage, and next-generation wearable displays. The originally proposed design strategy for light-emitting meta-display not only intriguingly enables simultaneous and independent encoding of fluorescence and pump light, but also expands encoding freedom of different incident wavevector directions. The design strategy, which extends the capability of light-emitting metasurface to meet diverse requirements, can pave the way for multiplexing optical displays, information storage, and next-generation wearable displays.image
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