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Updated: Oct 21, 2025

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

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Metasurface-Driven Optically Variable Devices.

Chunghwan Jung¹, Gyeongtae Kim², Minsu Jeong²

¹Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.

Chemical Reviews

|September 7, 2021

Summary

This summary is machine-generated.

Metasurface-driven optically variable devices (mOVDs) offer advanced anti-counterfeiting solutions. These novel devices utilize metasurfaces for robust, multi-response optical security features, surpassing conventional methods.

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Last Updated: Oct 21, 2025

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Area of Science:

Nano-optics and nanotechnology
Materials science
Optical engineering

Background:

Optically variable devices (OVDs) are crucial for anti-counterfeiting but face replication risks.
Advancements in printing technology challenge the security of conventional OVDs.
Metasurfaces offer a new generation of OVDs with enhanced anti-counterfeiting capabilities.

Purpose of the Study:

To review the emerging field of metasurface-driven OVDs (mOVDs).
To explore the fundamentals of metasurfaces for optical manipulation.
To discuss fabrication methods and future outlook for mOVDs.

Main Methods:

Discussion of plasmonic and dielectric metasurface fundamentals.
Categorization of mOVDs into monofunctional, tunable, and multifunctional types.
Classification of fabrication techniques into prototyping and manufacturing.

Main Results:

Metasurfaces enable complex optical responses within a single device, hindering reverse engineering.
mOVDs demonstrate potential in structural color printing, holography, and polarization encoding.
Fabrication methods are presented for both rapid prototyping and mass manufacturing.

Conclusions:

Metasurface technology presents a robust solution against counterfeiting.
mOVDs offer a new paradigm for optical security with tunable and multifunctional features.
This review provides a framework for mOVDs based on their capacity and security level.