Results 101 to 110 of about 19,013 (311)

Layered Dielectric Characterization of Human Skin in the Sub-Terahertz and Terahertz Frequency Ranges

open access: yesCoRR
to be published in EAI BODYNETS ...
Silvia Mura   +4 more
openaire   +2 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification

open access: yesLeida xuebao, 2016
Terahertz holographic imaging has broad applications in the field of personal security verification, concealed weapon detection, and non-destructive testing.
Liu Wei   +3 more
doaj   +1 more source

Intracavity terahertz optical parametric oscillators

open access: yes, 2011
This thesis describes the design and implementation of several novel, nanosecond pulsed, intracavity optical parametric oscillators for the generation of terahertz radiation.
Walsh, David A.
core  

Describing broadband terahertz response of graphene FET detectors by a classical model [PDF]

open access: yes, 2020
Direct power detectors based on field-effect transistors are becoming widely used for terahertz applications. However, accurate characterization at terahertz frequencies of such detectors is a challenging task. The high-frequency response is dominated by
Jeppson, Kjell,   +7 more
core   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

open access: yesAdvanced Optical Materials, EarlyView.
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

Quantum Sensing In The Terahertz Frequency Range

open access: yes
Although terahertz radiation has moved into the focus of technical applications, e.g. layer-thickness measurement, the generation and detection of radiation in this spectral range remains challenging as detectors are either cooled or expensive due to the
Molter, Daniel   +4 more
core   +1 more source

Data‐Efficient Electromagnetic Surrogate Solver Through Dissipative Relaxation Transfer Learning

open access: yesAdvanced Optical Materials, EarlyView.
Dissipative relaxation transfer learning (DIRTL) enables data‐efficient training of electromagnetic surrogate solvers by pretraining data generated with artificial material loss before fine‐tuning on target lossless data. The framework suppresses resonant outlier effects during early training, allowing effective adaptation to high‐amplitude resonances ...
Sunghyun Nam   +2 more
wiley   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

open access: yesAdvanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu   +5 more
wiley   +1 more source

Influence Of Terahertz Range Electromagnetic Radiation At Molecular Spectrum Frequency Of 150+0,75 Ghz Nitric Oxide On Microcirculation Morphofunctional Disturbances In White Rats In Condition Of Acute And Prolonged Stress [PDF]

open access: yesСаратовский научно-медицинский журнал, 2009
The effect of electromagnetic radiation of terahertz range at frequency of emission and absorption molecular spectrum of 150+0,75GHz nitric oxide on morphofunctional changes of microcirculation and tissue structure in animals in condition of acute and ...
M.O. Kurtukova   +3 more
doaj  

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