Review of broadband metamaterial absorbers: from principles, design strategies, and tunable properties to functional applications

BX Wang, C Xu, G Duan, W Xu… - Advanced Functional …, 2023 - Wiley Online Library
Metamaterial absorbers have been widely studied and continuously concerned owing to
their excellent resonance features of ultra‐thin thickness, light‐weight, and high absorbance …

Tunable metasurfaces towards versatile metalenses and metaholograms: a review

J Kim, J Seong, Y Yang, SW Moon… - Advanced …, 2022 - spiedigitallibrary.org
Metasurfaces have attracted great attention due to their ability to manipulate the phase,
amplitude, and polarization of light in a compact form. Tunable metasurfaces have been …

Nanoimprint lithography for high-throughput fabrication of metasurfaces

DK Oh, T Lee, B Ko, T Badloe, JG Ok, J Rho - Frontiers of Optoelectronics, 2021 - Springer
Metasurfaces are composed of periodic sub-wavelength nanostructures and exhibit optical
properties that are not found in nature. They have been widely investigated for optical …

Tunable metasurfaces: the path to fully active nanophotonics

T Badloe, J Lee, J Seong, J Rho - Advanced Photonics …, 2021 - Wiley Online Library
In the field of nanophotonics, metasurfaces have come to the forefront in real‐world
applications, owing to their accessible exotic optical properties that can be readily designed …

Polarization and angular insensitive bendable metamaterial absorber for UV to NIR range

MMK Shuvo, MI Hossain, S Mahmud, S Rahman… - Scientific Reports, 2022 - nature.com
Broadband absorbers are required for solar energy harvesting because they efficiently
absorb the incident photon in the wide-ranging solar spectrum. To ensure high absorption of …

Design of a wideband terahertz metamaterial absorber based on Pythagorean-tree fractal geometry

RMH Bilal, MA Naveed, MA Baqir, MM Ali… - Optical Materials …, 2020 - opg.optica.org
Broadband absorption in the terahertz regime is a challenge and onerous to realize with a
single layer metasurface. Self-similarity in fractal structures are exploiting metamaterial …

Metamaterial-based radiative cooling: towards energy-free all-day cooling

B Ko, D Lee, T Badloe, J Rho - Energies, 2018 - mdpi.com
In the light of the ever increasing dangers of global warming, the efforts to reduce energy
consumption by radiative cooling techniques have been designed, but are inefficient under …

Near-zero reflection of all-dielectric structural coloration enabling polarization-sensitive optical encryption with enhanced switchability

C Jung, Y Yang, J Jang, T Badloe, T Lee, J Mun… - …, 2020 - degruyter.com
Structural coloration using metasurfaces has been steadily researched to overcome the
limitations of conventional color printing using pigments by improving the resolution …

Hydrogels for active photonics

B Ko, N Jeon, J Kim, H Kang, J Seong, S Yun… - Microsystems & …, 2024 - nature.com
Conventional photonic devices exhibit static optical properties that are design-dependent,
including the material's refractive index and geometrical parameters. However, they still …

Tutorial on metalenses for advanced flat optics: design, fabrication, and critical considerations

SW Moon, C Lee, Y Yang, J Kim, T Badloe… - Journal of Applied …, 2022 - pubs.aip.org
Metalenses comprised of artificial subwavelength structures known as meta-atoms have
demonstrated abilities beyond conventional bulky optical components by modulating the …