A metasurface-based light-to-microwave transmitter for hybrid wireless communications
Light: Science & Applications, 2022 Signal conversion plays an important role in many applications such as communication, sensing, and imaging. Realizing signal conversion between optical and microwave frequencies is a crucial step to construct hybrid communication systems that combine ...
X. Zhang +8 more
semanticscholar +1 more source
Frequency coding metasurface for multiple directions manipulation of terahertz energy radiation
AIP Advances, 2019 A multifunctional frequency coding metasurface is proposed in terahertz frequency band. Different from the previous coding metasurface with a fixed phase difference of the neighbor coding unit cells in the whole working frequency band, the proposed ...
Shao-He Li, Jiu-Sheng Li
doaj +1 more source
Review of terahertz gradient metasurface
Dianzi Jishu Yingyong, 2019 Metasurface, a novel artificial electromagnetic material, its thickness is much smaller than the wavelength. By regulating the interaction between the sub-wavelength unit structure and the electromagnetic wave, the wave will undergo a phase or amplitude ...
Kou Wei +3 more
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Frequency-Diverse Metasurface Antenna With Hybrid Bunching Methods for Coincidence Imaging
IEEE Access, 2020 A frequency-diverse metasurface antenna with hybrid bunching methods for coincidence imaging is proposed in this paper. The hybrid frequency-diverse bunching metasurface antenna contains an excitation system, a frequency-diverse metasurface and a double ...
Mengran Zhao +5 more
doaj +1 more source
Highly Birefringent Terahertz Metasurfaces Based on a Liquid-Crystal-Embedded Metal Mesh
IEEE Photonics Journal, 2022 Here, we report a metasurface for polarization converters in the terahertz (THz) spectral range. The THz metasurface consists of a metal mesh with subwavelength isotropic apertures and a nematic liquid crystal (LC) that is a uniaxially anisotropic ...
Tomoyuki Sasaki +6 more
doaj +1 more source
Phase-only transmissive spatial light modulator based on tunable dielectric metasurface [PDF]
Science, 2019 Dynamic metasurfaces Nanostructured metasurfaces can function as many passive optical elements. Now, S.-Q. Li et al. demonstrate that metasurfaces can be combined with liquid crystals to provide active control over light beams.
Shiqiang Li +5 more
semanticscholar +1 more source
Terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion
Opto-Electronic Science, 2022 Metasurfaces that can realize the polarization manipulation of electromagnetic waves on the sub-wavelength scale have become an emerging research field. Here, a novel strategy of combining the metasurface and Fresnel zone plate to form a metasurface zone
Zhen Yue +10 more
semanticscholar +1 more source
Multifunctional Nonlocal Metasurfaces [PDF]
Physical Review Letters, 2020 15 pages, 4 ...
Adam C. Overvig +2 more
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Metasurface Freeform Nanophotonics [PDF]
Scientific Reports, 2017 AbstractFreeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minimizing their size.
Arka Majumdar +3 more
openaire +5 more sources
All‐Dielectric Crescent Metasurface Sensor Driven by Bound States in the Continuum
Advanced Functional Materials, 2021 Metasurfaces based on quasi‐bound states in the continuum (quasi‐BICs) constitute an emerging toolkit in nanophotonic sensing as they sustain high quality factor resonances and substantial near‐field enhancements.
Juan Wang +5 more
semanticscholar +1 more source