γ-Al2O3 nanoparticles (NPs) with a mean diameter of 60 nm were prepared through the sol–gel technique and characterized by X-ray diffraction, field emission scanning electron microscopy (FESEM), and ultraviolet–visible (UV-Vis) spectroscopy.
A. Faraji Alamouti +4 more
doaj +2 more sources
Relating the Hall conductivity to the many-body Chern number using Fermi’s Golden rule and Kramers–Kronig relations [PDF]
This work provides a surprisingly simple demonstration that the quantized Hall conductivity of correlated insulators is given by the many-body Chern number, a topological invariant defined in the space of twisted boundary conditions.
Goldman, Nathan, Ozawa, Tomoki
doaj +2 more sources
Single-shot wide-field topography measurement using spectrally multiplexed reflection intensity holography via space-domain Kramers-Kronig relations. [PDF]
Surface topology measurements of micro- or nanostructures are essential for both scientific and industrial applications. However, high-throughput measurements remain challenging in surface metrology.
Chung-Ha Lee +3 more
semanticscholar +1 more source
Kramers–Kronig relations for nonlinear rheology. Part II: Validation of medium amplitude oscillatory shear (MAOS) measurements [PDF]
The frequency dependence of third-harmonic medium amplitude oscillatory shear (MAOS) modulus [Formula: see text] provides insight into material behavior and microstructure in the asymptotically nonlinear regime.
Sachin Shanbhag, Y. M. Joshi
semanticscholar +1 more source
Using The Kramers-Kronig Transforms To Retrieve The Conductivity From The Effective Complex Permittivity [PDF]
While measuring the effective permittivity of dispersive material it may be of interest to distinguish between conductivity losses (caused by free electrons) and dielectric losses (caused by bounded electrons) which both are included in the imaginary ...
M. Bakry, L. Klinkenbusch
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OPTICAL ANISOTROPY AND BIREFRINGENCE OF CuAlS2 CRYSTALS [PDF]
Optical spectra were investigated in a spectral range of (300 - 700) nm for CuAlS2 single crystals. Transmission and wavelength modulated transmission spectra demonstrated presence of some impurity absorption bands in the region of optical transparency ...
MAȘNIC, Alisa +2 more
doaj +1 more source
Non-interferometric and non-iterative complex wave-field reconstruction based on Kramers-Kronig relations [PDF]
We reported a novel non-interferometric and non-iterative computational imaging method, synthetic aperture imaging based on Kramers-Kronig relations (KKSAI), to reconstruct complex wave-field.
Cheng Shen +3 more
semanticscholar +1 more source
In the dielectric spectroscopy of aqueous systems containing ions, the dielectric loss spectrum is affected by the contribution of the direct current (DC) conductivity σ, which sometimes significantly overlaps the dielectric relaxations related to the ...
Hiroaki Matsuura, R. Shirakashi
semanticscholar +1 more source
Designing refractive index fluids using the Kramers-Kronig relations. [PDF]
For a number of optical applications, it is advantageous to precisely tune the refractive index of a liquid. Here, we harness a well-established concept in optics for this purpose.
T. Sai +4 more
semanticscholar +1 more source
In this this paper we quickly derive the Kramers-Kronig relations from simple causality considerations and propose a simple way to implement them using the Fast Fourier Transform.
Jérôme Lucas +3 more
doaj +1 more source

