Results 11 to 20 of about 81,306 (310)

Accurate determination of terahertz optical constants by vector network analyzer of Fabry-Perot response [PDF]

open access: yes, 2013
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.38.005438.
Wang, X   +4 more
core   +5 more sources

Terahertz to bits and bits to terahertz [PDF]

open access: yesProceedings of the 7th ACM International Conference on Nanoscale Computing and Communication, 2020
The high millimeter-Wave and Terahertz spectrum above 100 GHz will form the underpinning of a broad set of game-changing future technology including high resolution sensing, imaging, robotics, autonomous systems, and wireless communication. In the last decade, we have seen a tremendous surge in efforts towards enabling chip-scale technology to address ...
Kaushik Sengupta   +3 more
openaire   +1 more source

Terahertz spectra of electrolyte solutions under applied electric and magnetic fields

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
Most biomolecules require an aqueous environment to fully exert their biological activity. However, the rotation mode, vibration mode, and energy associated with the hydrogen bonding network of water are in the terahertz band, resulting in strong ...
Shen Yan   +6 more
doaj   +1 more source

Terahertz absorption characteristics of ammonium salt solution based on self-sampling microfluidic chip

open access: yesScientific Reports, 2022
With the continuous development of terahertz (THz) detection technology, the use of terahertz spectroscopy to study chemical samples has become one of the indispensable tools in the field of biochemistry.
Qinghao Meng   +6 more
doaj   +1 more source

Estimation of High-Frequency Vibration Parameters for Terahertz SAR Imaging Based on FrFT With Combination of QML and RANSAC

open access: yesIEEE Access, 2021
High-frequency vibration of motion platform leads to paired echo for synthetic aperture radar (SAR) imaging, especially in terahertz band due to its shorter wave length.
Yinwei Li   +5 more
doaj   +1 more source

Complete Terahertz Polarization Control with Broadened Bandwidth via Dielectric Metasurfaces

open access: yesNanoscale Research Letters, 2021
We demonstrate terahertz dielectric metasurfaces with anisotropic multipoles within the framework of the generalized Huygens principle, in which the interference among these multipoles achieves giant phase shift with broadened bandwidth and high ...
Dacheng Wang   +3 more
doaj   +1 more source

Terahertz ptychography [PDF]

open access: yesOptics Letters, 2018
We realized a phase retrieval technique using terahertz (THz) radiation as an alternative to THz digital holography, named THz ptychography. Ptychography has been used in x-ray imaging as a groundbreaking improvement of conventional coherent diffraction imaging. Here we show that ptychography can be performed at THz frequencies too. We reconstructed an
Lorenzo Valzania   +3 more
openaire   +2 more sources

Reconfigurable Terahertz Spatial Deflection Varifocal Metamirror

open access: yesMicromachines, 2023
A traditional optical lens usually has a fixed focus, and its focus controlling relies on a bulky lens component, which makes integration difficult.
Jianhui Fang   +10 more
doaj   +1 more source

Experimental investigation of optically controlled topological transition in bismuth-mica structure

open access: yesScientific Reports, 2021
The hyperbolic materials are strongly anisotropic media with a permittivity/permeability tensor having diagonal components of different sign. They combine the properties of dielectric and metal-like media and are described with hyperbolic isofrequency ...
Anton Zaitsev   +11 more
doaj   +1 more source

High-Bandwidth Coherent OFDM-Nyquist-TDM Transceiver With Low-Bandwidth Electronics

open access: yesIEEE Access, 2023
We present a broadband coherent orthogonal frequency-division multiplexing (OFDM) transceiver based on orthogonal sampling and low bandwidth electronic analog signal processing.
Younus Mandalawi   +4 more
doaj   +1 more source

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