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22 November 2023 Metastructures: envision the future for immersive augmented reality
Bo Zhao
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Proceedings Volume PC12751, Photomask Technology 2023; PC127510B (2023) https://doi.org/10.1117/12.2688599
Event: SPIE Photomask Technology + EUV Lithography, 2023, Monterey, California, United States
Abstract
In the quest of searching for the next disruptive mobile computing platform after smartphones, Augmented Reality (AR) glasses show exciting promise in allowing humans to seamlessly interface with the real and the virtual world in unprecedented ways. Metastructure based Surface Relief Gratings (SRG) is an emerging technology with powerful capabilities and flexibilities such as diffraction order control, polarization control, dispersion control, etc., potentially creating a truly immersive AR display that has high efficiency, contrast, resolution, is light weight and compact in form factor, all while coming at a lower cost. In this talk, the author will walk through the benefits metastructures can bring to AR display, and the unique challenges to nanofabrication pipeline for metastructure based waveguide, including layout generation, biasing, proximity correction, nanoimprint master and photolithography mask fabrication, and how various fabrication failures impact final device.
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Bo Zhao "Metastructures: envision the future for immersive augmented reality", Proc. SPIE PC12751, Photomask Technology 2023, PC127510B (22 November 2023); https://doi.org/10.1117/12.2688599
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KEYWORDS
Augmented reality
Polarization control
Glasses
Nanoimprint lithography
Optical gratings
Optical lithography
Polarization gratings
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