Results 111 to 120 of about 5,043,066 (255)

High-speed 0.22 THz communication system with 84 Gbps for real-time uncompressed 8K video transmission of live events

open access: yesNature Communications
Terahertz frequency band (0.1 ~ 10 THz) can provide ultra-high transmitting rates for massive emerging applications. However, due to the radio frequency impairments and limited signal processing property of baseband devices, it is difficult for the ...
Ke Liu   +9 more
doaj   +1 more source

Seeing the Chemistry of Biomolecular Condensates: In Situ Mapping of Composition and Water Content

open access: yesAdvanced Science, EarlyView.
Raman hyperspectral imaging combined with spectral phasor analysis enables a label‐free quantification of proteins, polymers and water density within individual biomolecular condensates. By transforming complex vibrational fingerprints into intuitive compositional maps, the approach reveals the high water content and structural heterogeneity of ...
E. Sabri   +3 more
wiley   +1 more source

Innovative corrugated transmission line for Terahertz wave-guiding

open access: yes
We demonstrate the construction of modular corrugated waveguides using stacked rings to propagate Terahertz frequencies. This waveguide allows propagation of the same fundamental mode as an optical-fiber, namely the HE 11 mode.
Ansermet, J.-Ph.   +4 more
core   +1 more source

Terahertz magnetic plasmon waveguides

open access: yes, 2012
Extent: 2p.A design of subwavelength terahertz waveguides is presented in this manuscript. The structure is composed of a linear chain of split-ring resonators (SRRs), i.e., artificial magnetic atoms. The energy transport along the chain can be described
Markus Walther   +11 more
core   +1 more source

Multi‐Dimensional Physical‐Layer Security via Digitally Mediated Space–Time Modulation

open access: yesAdvanced Science, EarlyView.
Digitally mediated space–time modulation moves radiation control beyond hardware‐bound switching. Multiple information‐bearing and masking waveforms are jointly synthesized at baseband and coherently coupled to simple periodic time modulation, enabling programmable, independently directed multi‐beam radiation without increasing switching‐state ...
Kejin Chen   +8 more
wiley   +1 more source

Strong nonlinear terahertz response induced by Dirac surface states in Bi2Se3 topological insulator

open access: yesNature Communications, 2016
The terahertz response of topological insulator surface states, in which relativistic electrons are protected from backscattering, possesses potential optic and plasmonic applications.
Flavio Giorgianni   +19 more
doaj   +1 more source

Passive Color Imaging Through Macroscopic Strong Scattering Media

open access: yesAdvanced Science, EarlyView.
Light reflected from distant targets is severely attenuated and scattered by dense fog. A color‐channel‐simulated, independently exposed sCMOS array (CISA), combined with a passive colorful de‐scattering pipeline (PCDP), captures and reconstructs extremely weak target signals.
Renrui Wang   +4 more
wiley   +1 more source

Functional MXene Inks for Printed Electronics: Chemistry, Rheology, and Devices

open access: yesAdvanced Science, EarlyView.
Functional MXene inks are emerging as building blocks for MXetronics, connecting MXene synthesis, surface functionalization, ink formulation, and advanced printing with device‐level applications. This review maps how composition, stability, rheology, and processability govern printed structures and enable high‐performance sensors, energy‐storage ...
Shahzaib Ali   +6 more
wiley   +1 more source

Q‐LEAP: Millisecond Hyperdimensional Optimization for Full‐Spectrum Optical Metamaterials

open access: yesAdvanced Science, EarlyView.
Q‐LEAP integrates physics‐informed residual machine learning with factorization‐machine‐encoded quantum annealing to design full‐spectrum optical metamaterials. It explores a 2108 design space and, in a single 2.56 ms annealing step, reaches 85.83% of the theoretical FoM limit, enabling selective 5‐8 µm emission with 3–5 and 8–14 µm suppression and ∼40×
Zikang Guo   +3 more
wiley   +1 more source

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