Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao +6 more
wiley +1 more source
Study on the effects of terahertz radiation on gene networks of Escherichia coli by means of fluorescent biosensors. [PDF]
Serdyukov DS +7 more
europepmc +1 more source
Cellulose as a Platform for Biodegradable Metasurfaces: THz Characterization and Fabrication
The demand for sustainable THz technologies has motivated the development of biodegradable, flexible devices based on ethyl cellulose. Metal‐backed EC metasurfaces were analytically designed and fabricated to achieve near‐perfect THz absorption. Reflection‐mode THz spectroscopy confirmed resonant absorption at 0.576 and 0.411 THz, demonstrating the ...
Edoardo Negri +7 more
wiley +1 more source
Shedding light on biochemical changes in single neuron-like pheochromocytoma cells following exposure to synchrotron sourced terahertz radiation using synchrotron source Fourier transform infrared microspectroscopy. [PDF]
Perera PGT +8 more
europepmc +1 more source
Determination of Complex Permittivity of Analytes Using Terahertz Metamaterials
Resonance frequency shifts (Δf) and transmission variations (ΔT) in THz metamaterials exhibit distinct sensitivities to dielectric properties of overlaid analytes. By combining these responses within a contour map framework, the real permittivity (ε′) and loss tangent (tan δ) of liquid analytes can be simultaneously determined, providing a rapid route ...
Ruixiang Zhu +6 more
wiley +1 more source
Impact Ionization Induced by Terahertz Radiation in HgTe Quantum Wells of Critical Thickness. [PDF]
Hubmann S +11 more
europepmc +1 more source
Theoretical Investigation of the Structural Stability and Optoelectronic Properties of La2HfSe5
La2HfSe5 is a stable, ductile, direct band‐gap semiconductor with strong visible‐range absorption, as revealed by comprehensive first‐principles calculations. Its structural, mechanical, and dynamical stability, together with favorable electronic and optical properties and robust Hf–Se bonding, highlight its strong potential for next‐generation ...
Elkana Rugut, Eric Maluta
wiley +1 more source
Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters
This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang +10 more
wiley +1 more source
Prediction of leaf water potential and relative water content using terahertz radiation spectroscopy. [PDF]
Browne M +4 more
europepmc +1 more source
ABSTRACT We performed first‐principles density functional theory calculations to methodically analyse the structural, mechanical, electronic, thermal, and optical properties of trigonal ZrSnO3 under external pressure up to 60 GPa with GGA‐PBE and HSE06 functionals.
Jahid Hasan +6 more
wiley +1 more source

