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Fabrication and analysis of 3D low THz metamaterials
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Academic Editor: Kaupo Kukli
Published:
13 March 2023
by MDPI
in Holography Meets Advanced Manufacturing
session Advanced Manufacturing posters
https://doi.org/10.3390/HMAM2-14152
(registering DOI)
Abstract:
The creation of fascinating optical effects such as negative refractive, optical magnetism, and cloaking has become a human dream since the late 1940s, when artificially designed materials, so-called optical metamaterials, were investigated. They are therefore highly interesting for many future applications in many fields. Fabrication of 3D optical metamaterials, which would enable the use of their full potential, remains challenging due to the limitations of conventional manufacturing techniques. An approach that has been proved to be suitable to overcome this challenge is multi-photon lithography (MPL)[1], which is a true 3D printing technique with high resolution down to sub-100 nm.
In this work, the high potential of using MPL for metamaterial research is further underlined by demonstrating a procedure to process metamaterials operating at low THz frequency (1-10 THz) and generate novel devices as perfect absorbers and electromagnetic waves attenuator. In these frequencies there is no natural element that can interact with electromagnetic fields. Simulation by Finite Differential Time Domain (FDTD) method were done to design the materials’ geometry giving the optimal dimensions and properties for the structure. As a photosensitive material for the MPL an organic – inorganic photopolymer SZ2080™ was used. After MPL processing, the structures were further processed using selective electroless plating to cover the polymer with silver via chemical procedure, so the spectral characterization (absorbance, transmittance, reflectance) can be done at THz frequencies.
[1] Farsari, M., Chichkov, B. Two-photon fabrication. Nature Photon 3, 450–452 (2009), https://doi.org/10.1038/nphoton.2009.131
Keywords: multiphoton lithography, THz metamaterials, FDTD, silver coating
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This paper talks about 3D optical metamaterials that can create amazing effects like negative refraction, optical magnetism, and cloaking. Making 3D metamaterials is hard with regular manufacturing, but multi-photon lithography (MPL) allows very precise 3D printing down to less than 100 nm.
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
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This paper talks about 3D optical metamaterials that can create amazing effects like negative refraction, optical magnetism, and cloaking. Making 3D metamaterials is hard with regular manufacturing, but multi-photon lithography (MPL) allows very precise 3D printing down to less than 100 nm.
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
Khan 76
30 December 2025
This paper talks about 3D optical metamaterials that can create amazing effects like negative refraction, optical magnetism, and cloaking. Making 3D metamaterials is hard with regular manufacturing, but multi-photon lithography (MPL) allows very precise 3D printing down to less than 100 nm.
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
Khan 76
30 December 2025
This paper talks about 3D optical metamaterials that can create amazing effects like negative refraction, optical magnetism, and cloaking. Making 3D metamaterials is hard with regular manufacturing, but multi-photon lithography (MPL) allows very precise 3D printing down to less than 100 nm.
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FFKolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
In this work, researchers made metamaterials that work at low THz frequencies (1–10 THz). These materials can act as perfect absorbers or electromagnetic wave attenuators, which is useful because nothing naturally interacts at these frequencies. They used FDTD simulations to design optimal shapes and dimensions. The material used for printing was a photosensitive organic–inorganic polymer (SZ2080™), which was then coated with silver for testing absorbance, transmittance, and reflectance at THz frequencies.
This research shows how MPL can help build advanced 3D metamaterials for future technologies.
By the way, while checking daily updates in India, I often use Kolkata FFKolkata FF and Kolkata Fatafat for fast, reliable results—they’re quick and easy to use, just like this precise 3D printing technique makes complex structures efficiently!
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