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Related Experiment Video

Updated: Jan 24, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

Scalable Light-Printing of Substrate-Engraved Free-Form Metasurfaces.

Jae-Hyuck Yoo¹, Hoang T Nguyen¹, Nathan J Ray¹

¹Lawrence Livermore National Laboratory , Livermore , California 94551 , United States.

ACS Applied Materials & Interfaces

|May 30, 2019

Summary

Researchers developed a scalable method to create durable metasurfaces for large-aperture meta-optics. This technique uses laser-induced dewetting to precisely control nanoscale features, enabling advanced applications in imaging and communications.

Keywords:

dewetting meta-optics meta-surface nanoparticles plasmonics reactive ion beam etching thermal annealing

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Last Updated: Jan 24, 2026

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Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Published on: December 18, 2018

Area of Science:

Materials Science
Optics and Photonics
Nanotechnology

Background:

Controlling nanoscale geometric features on large-aperture metasurfaces is crucial for advanced optical applications.
Existing methods face challenges in scalability and durability due to material sensitivities.

Purpose of the Study:

To present a scalable and durable fabrication method for substrate-engraved metasurfaces.
To demonstrate local control over nanoscale features for large-aperture meta-optics.

Main Methods:

A thin metal film is deposited on a substrate and patterned using local laser-induced dewetting into nanoparticles, forming a mask.
The substrate is dry-etched through the nanoparticle mask.
Selective mask removal reveals the metasurface, with the local index determined by dewetting temperature.

Main Results:

Demonstrated a scalable method for fabricating metasurfaces with locally controlled nanoscale features.
Successfully printed a free-form pattern onto a fused silica glass substrate using laser raster scanning.
Showcased the dependence of local index on laser-induced dewetting temperature.

Conclusions:

The presented method offers a scalable and durable approach to metasurface fabrication.
This technique enables the creation of large-aperture meta-optics for applications like long-range imaging and optical communications.
The spatially controlled engraving has potential applications beyond optics, including surface fluidics and acoustics.