Results 151 to 160 of about 8,473 (273)

Record Index–Bandgap Trade‐Off: CdPS3 as a High‐Index van der Waals Platform for Ultraviolet–Visible Nanophotonics

open access: yesNanophotonics, Volume 15, Issue 11, 13 June 2026.
The fundamental index–bandgap trade‐off strictly limits materials for short‐wavelength nanophotonics. The van der Waals crystal CdPS3 emerges as a compelling alternative platform challenging this paradigm. Combining an exceptionally high refractive index approaching 3 with a broad mid‐infrared‐to‐ultraviolet transparency window, CdPS3 unlocks new ...
Maksim R. Povolotskiy   +23 more
wiley   +1 more source

The Discrete Fourier Transform: Computation, Application, and a Little Abstraction

open access: yes, 2007
Our discussion of the Discrete Fourier Transform, you should know, will be necessarily\ud limited. The DFT has numerous and varied applications, a few of which are: spectral analysis, data compression, solving PDE's, signal processing, and the ...
Cording, Evan
core  

Sinewave frequency estimation based on fractional Interpolated Discrete Fourier Transform

open access: yes
Frequency estimation is crucial in numerous scientific applications and have led to the development of various algorithms. Most approaches use the Discrete Fourier Transform followed by spectral interpolation.
Ramos, Pedro M., Janeiro, Fernando M.
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, Volume 38, Issue 34, 17 June 2026.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

Coded Multi-dimensional Spreading System using Discrete Fourier Transform

open access: yes, 2015
In this paper a novel coded multi-dimensional spreading technique using the Discrete Fourier Transform (DFT) is introduced. It exploits the DFT characteristic of spreading one symbol in one domain to all the symbols in the corresponding transform domain.
Markarian, Garik   +2 more
core  

LFA: A Lattice Fourier Analyzer for Quantitative In Situ EC‐STM of Adsorbate–Substrate Superstructures

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 11, 9 June 2026.
Although electrochemical scanning tunneling microscopy provides atomic‐scale access to electrified interfaces, quantitative in situ and operando investigations suffer from drift‐induced distortions. This work introduces the Lattice Fourier Analyzer (LFA), which employs substrate‐anchored affine drift correction in reciprocal space to recover precise ...
Rafał Lewandków   +4 more
wiley   +1 more source

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