Results 121 to 130 of about 859 (177)

Unveiling ferroelectric and altermagnetic coexistence in multiferroic HfMnO₃ perovskite. [PDF]

RSC Adv
Zaman A, Alrefaee SH, Shomurotova S, Nurmuhammedov A, Knani S, Tirth V, Algahtani A, Elboughdiri N.   +7 more
europepmc   +1 more source

Effect of halogen substitution on the electronic and optical behavior of C₁₆H₁₀X₂O₂(X = F, cl, Br and I) organic semiconductors. [PDF]

Sci Rep
Benlakhdar F, Ghebouli MA, Fatmi M, Ghebouli B, Alomairy S, Alanazi FK, Djemli A, Althagafi TM.   +7 more
europepmc   +1 more source

Qualitative analysis of edible oil mixture for omega-3 content using terahertz time-domain spectroscopy. [PDF]

NPJ Sci Food
Yang LH, Maeng I, Lee S, Kim K, Ji YB, Bark HS, Shin HJ, Oh SJ.   +7 more
europepmc   +1 more source

Inverse reconstruction of model cells: Extracting structural and molecular insights through infrared spectroscopic cytology. [PDF]

PLoS One
Akbar PN, Blümel R.
europepmc   +1 more source

Broadband ultrafast self-heterodyned chiro-optical spectroscopy

Cerullo G, Gucci F, Iudica A, Tacchi AVY, Schirato A, Crotti G, Kim RM, Lee SM, Han JH, Villa A, Ali D, Rizzo A, Maiuri M, Nam KT, Valle GD.   +14 more
europepmc   +1 more source

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On the Kramers-Kronig relations

Rheologica Acta, 2018
We provide a new derivation of the Kramers-Kronig relations on the basis of the Sokhotski-Plemelj equation with detailed mathematical justifications. The relations hold for a causal function, whose Fourier transform is regular (holomorphic) and square-integrable.
JOSÉ M Carcione, Jing Ba, Fabio Cavallini   +2 more
exaly   +2 more sources

Note on the Kramers-Kronig Relations

Journal of Applied Physics, 1955
The explicit form of the relationship between the real and imaginary parts of a physically realizable network function is correlated with the alternate conventions available for such problems. The transformation from a linear frequency scale to a logarithmic one is simply effected by considering the Mellin transforms of the appropriate functions.
openaire   +2 more sources

KRAMERS--KRONIG RELATIONS AND SUM RULES.

Journal of Mathematical Physics, 1972
The concept of moments, which are integrals of positive or negative integral powers ωn weighted by real or imaginary parts of admittance functions, is here generalized so as to be applied to a wide category of admittance functions, including Lorentzian functions.
R Kubo, M Ichimura
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Practical Applications of the Kramers–Kronig Relations

Corrosion, 1991
A technique is presented for using the Kramers–Kronig (KK) relations to evaluate the consistency of impedance data that do not exhibit a DC limit. The approach presented here differs from current algorithms because extrapolation of experimental data, required to evaluate the integral relations, is achieved without the assumption of an equivalent ...
Mark E. Orazem, J. Matthew Esteban, Oliver C. Moghissi   +2 more
openaire   +1 more source

Kramers-Kronig relations for an interferometer

Optics Communications, 1997
Abstract The treatment in the literature of the transfer functions for interferometers does not allow for a proper use of the Kramers-Kronig (KK) relations between amplitude and phase. We will present a systematic description of transfer functions.
Kop, H.J., de Vries, P., Sprik, R., Lagendijk, A.   +3 more
openaire   +4 more sources