Results 121 to 130 of about 11,957 (302)

An investigation on THz yield from laser-produced solid density plasmas at relativistic laser intensities

open access: yesNew Journal of Physics, 2018
We experimentally characterize the generation of high-power terahertz radiation (THz) at the rear surface of a target irradiated by multiple laser pulses.
S Herzer   +11 more
doaj   +1 more source

High Field Terahertz Generation and Nonlinear Terahertz Spectroscopy

open access: yesResearch in Optical Sciences, 2012
Nonlinear THz spectroscopy is a growing subfield accessible with common tabletop laser systems. Methods for generation of intense THz pulses and recent nonlinear THz spectroscopy results from solid, liquid, and gas phase samples will be discussed.
openaire   +2 more sources

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

open access: yesAdvanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo   +7 more
wiley   +1 more source

THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses

open access: yesNew Journal of Physics, 2018
We numerically study the influence of chirping and delaying several ionizing two-color light pulses in order to engineer terahertz (THz) wave generation in air.
A Nguyen   +4 more
doaj   +1 more source

Generation of terahertz pulsed radiation from photoconductive emitters using 1060 nm laser excitation

open access: yes, 2022
S.196-197In this paper we report experimental results on the generation of broadband Terahertz (THz) radiation using photoconductive emitters on the base of low-temperature-grown (LT) InGaAs for excitation with 1060 nm wavelength. The material properties
Forchel, A.   +8 more
core  

A Dual‐Channel Synergistic Ultrasensitive Biosensor for Tumor Liquid Biopsy

open access: yesAdvanced Science, EarlyView.
ABSTRACT Liquid biopsy technology, which detects circulating tumor DNA (ctDNA) in cerebrospinal fluid, plays a crucial role in the early diagnosis and precision treatment of gliomas. However, the intrinsically low abundance and rapid clearance of ctDNA pose substantial challenges for conventional analytical techniques, such as droplet digital PCR and ...
Yu Sun   +12 more
wiley   +1 more source

A High-Power Broadband Terahertz Source Enabled by Three-Dimensional Light Confinement in a Plasmonic Nanocavity

open access: yesScientific Reports, 2017
The scope and potential uses of time-domain terahertz imaging and spectroscopy are mainly limited by the low optical-to-terahertz conversion efficiency of photoconductive terahertz sources.
Nezih Tolga Yardimci   +3 more
doaj   +1 more source

Wavefront Line‐Scan Imaging Via a Single‐Pixel Detector

open access: yesAdvanced Science, EarlyView.
We propose and demonstrate a wavefront line‐scan imaging paradigm that integrates 1D spatial light modulation with single‐pixel detection. Benefiting from 1D modulation, not only is the imaging speed improved, but also the storage of modulation patterns is reduced by several orders of magnitude.
Nuo Liu   +4 more
wiley   +1 more source

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

open access: yesAdvanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

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