Results 11 to 20 of about 175,414 (264)

Topological Insulator Films for Terahertz Photonics

open access: yesNanomaterials, 2022
We discuss experimental and theoretical studies of the generation of the third terahertz (THz) frequency harmonic in thin films of Bi2Se3 and Bi2-xSbxTe3-ySey (BSTS) topological insulators (TIs) and the generation of THz radiation in photoconductive ...
Kirill A. Kuznetsov   +8 more
doaj   +1 more source

Polarization Sensitive Photodetectors Based on Two-Dimensional WSe2

open access: yesNanomaterials, 2022
In this work we show the possibility of imparting polarization-sensitive properties to two-dimensional films of graphene-like semiconductors, using WSe2 as an example, by the application of ordered silver triangular nanoprisms.
Andrey Guskov   +2 more
doaj   +1 more source

GaAs PHEMT PERFORMANCE INCREASE USING DELTA-DOPING IN THE FORM OF NANOWIRES OF TIN ATOMS

open access: yesРоссийский технологический журнал, 2017
The PHEMT epitaxial structures with a doping profile in the form of tin nanowires were fabricated using vicinal GaAs substrate disoriented by 0.3° in relation to accurate orientation (100). Investigation of electron transport properties of the structures
A. E. Yachmenev   +2 more
doaj   +1 more source

All-dielectric metalens based on a single colloidal particle for photoconductive optical-to-terahertz switches

open access: yesРоссийский технологический журнал, 2020
*
I. A. Glinskiy   +2 more
doaj   +1 more source

MONOLITHIC INTEGRATED CIRCUIT OF GаN LOW-NOISE AMPLIFIER FOR 57-64 GHz BANDWIDTH

open access: yesРоссийский технологический журнал, 2016
The article describes the development of a low-noise amplifier for the 57-64 GHz band based on a wide-gap semiconductor - gallium nitride. We analyze existing commercial developments in the area of low-noise amplifiers for the 60 GHz band, which are ...
D. V. Krapukhin, P. P. Maltsev
doaj   +1 more source

An Ultraminiaturized Dual-Stopband Frequency Selective Surface for Ultra High Frequency

open access: yesIEEE Access, 2020
In this paper, an ultraminiaturized dual-stopband frequency selective surface (FSS) for ultra high frequency (UHF) is investigated. The proposed FSS uses one dielectric layer with two different metal layers printed on its surfaces and the metal layers ...
Lei Zhao   +6 more
doaj   +1 more source

Robustness evaluation of an inkjet‐printed epidermal ultra‐high‐frequency radio frequency identification tag

open access: yesHealthcare Technology Letters, 2021
This paper examines the impact of daily activities on the performance of a body‐mounted radio frequency identification (RFID) tag inkjet printed onto tattoo transfer paper. This paper aims to assess how robust RFID tags of this nature are when mounted on
Dumtoochukwu Obiora Oyeka   +1 more
doaj   +1 more source

Viscous absorption of ultra-high-frequency gravitons

open access: yesPhysics Letters B, 2022
The high-frequency gravitons can be absorbed by the first and second viscosities of the post-inflationary plasma as the corresponding wavelengths reenter the Hubble radius prior to big-bang nucleosynthesis.
Massimo Giovannini
doaj   +1 more source

Ultra-High Frequency rectification using organic diodes [PDF]

open access: yes2008 IEEE International Electron Devices Meeting, 2008
In the present work, we demonstrate a plastic diode that can operate in the ultra-high frequency (UHF) band and rectify an incoming AC voltage at those frequencies.
Steudel, Soeren   +5 more
openaire   +1 more source

The Econometrics of Ultra-high-frequency Data [PDF]

open access: yesEconometrica, 2000
Summary: Ultra-high-frequency data is defined to be a full record of transactions and their associated characteristics. The transaction arrival times and accompanying measures can be analyzed as marked point processes. The ACD point process developed by \textit{R. F. Engle} and \textit{J. R. Russell} [Econometrica 66, No.
openaire   +1 more source

Home - About - Disclaimer - Privacy