Results 31 to 40 of about 6,952,164 (288)

Light-guiding-light-based temporal integration of broadband terahertz pulses in air

open access: yesAPL Photonics, 2023
The next generation of all-optical computation platforms prefers the light-guiding-light (LGL) scheme inside a medium that envisions circuitry-free and rapidly reconfigurable systems powered by dynamic interactions between light beams.
Jiayu Zhao   +7 more
doaj   +1 more source

A Novel Method for the Enhancement of Composite Materials’ Terahertz Image Using Unsharp Masking and Guided Filtering Technology

open access: yesFrontiers in Physics, 2021
When terahertz imaging technology is used for the nondestructive testing of composite materials, the signal is often affected by the experimental environment and internal noise of the system, as well as the absorption and scattering effect of the tested ...
Zhilong Li   +8 more
doaj   +1 more source

Effect of external magnetic field on terahertz transmission characteristics of electrolyte solution based on microfluidic technology

open access: yesResults in Optics, 2022
In this study, the effect on the terahertz (THz) transmission characteristics was investigated by varying the constant magnetic field time at both ends of the liquid sample (deionized water, CuSO4, CuCl2, (CH3COO) 2Cu, Na2SO4, NaCl, CH3COONa solution ...
Ping Ye   +8 more
doaj   +1 more source

Generalized Persistent Polar Format Algorithm for Fast Imaging of Airborne Video SAR

open access: yesRemote Sensing, 2023
As a cutting-edge research direction in the field of radar imaging, video SAR has the capability of high-resolution and persistent imaging at any time and under any weather.
Jiawei Jiang   +3 more
doaj   +1 more source

Terahertz Imaging Super-Resolution for Documental Heritage Diagnostics [PDF]

open access: yesIEEE Transactions on Terahertz Science and Technology
Terahertz imaging provides valuable insights into the composition and structure of objects or materials, with applications spanning security screening, medical imaging, materials science, and cultural heritage preservation. Despite its widespread utility,
Danae Antunez Vazquez   +4 more
semanticscholar   +1 more source

High-efficiency terahertz single-pixel imaging based on a physics-enhanced network.

open access: yesOptics Express, 2023
As an alternative solution to the lack of cost-effective multipixel terahertz cameras, terahertz single-pixel imaging that is free from pixel-by-pixel mechanical scanning has been attracting increasing attention.
Youquan Deng   +4 more
semanticscholar   +1 more source

Terahertz multistatic reflection imaging [PDF]

open access: yesJournal of the Optical Society of America A, 2002
We describe a new imaging method using single-cycle pulses of terahertz (THz) radiation. This technique emulates the data collection and image processing procedures developed for geophysical prospecting and is made possible by the availability of fiber-coupled THz receiver antennas.
Dorney, Timothy D.   +3 more
openaire   +3 more sources

Tunable Transmissive Terahertz Linear Polarizer for Arbitrary Linear Incidence Based on Low-Dimensional Metamaterials

open access: yesNanomaterials, 2021
In this work, we propose a structure consisting of three metamaterial layers and a metallic grating layer to rotate the polarization of arbitrary linearly polarized incidence to the y-direction with high transmissivity by electrically tuning these ...
Zhenyu Yang   +8 more
doaj   +1 more source

Metamaterial-Based Terahertz Imaging [PDF]

open access: yesIEEE Transactions on Terahertz Science and Technology, 2015
This article presents the design of an innovative, low-cost, uncooled, metamaterial based terahertz (THz) focal plane array (FPA). A single pixel is composed of a resonant metamaterial absorber and micro-bolometer sensor integrated in a standard 180 nm CMOS process.
Escorcia Carranza, Ivonne   +3 more
openaire   +1 more source

Theoretical Investigation on Microcavity Coupler for Terahertz Quantum-Well Infrared Photodetectors

open access: yesIEEE Access, 2020
Resonant behaviors and absorption enhancement of metallic grating-dielectric-metal (GDM) microcavity are theoretically investigated. The GDM structure is treated as periodic unit cells of two serially-connected metal-dielectric-metal (MDM) and air ...
Xuguang Guo   +5 more
doaj   +1 more source

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