Anomalous to normal dispersion nonlinear optical dephasing switch in electromagnetically induced transparency using a Kerr effect

Autor: Ayyappan J, Beena T

Publikováno v: Journal of Physics Communications, Vol 8, Iss 7, p 075002 (2024)

The atomic decoherence effect (DE) on a Kerr nonlinear (KNL) electromagnetically induced transparency (EIT)is studied in a Δ system. The DE between the ground state hyperfine levels is caused by the dephasing rate γ _d which dramatically modifies t

Externí odkaz: https://doaj.org/article/99b2d4c830354bbbb1a09138eb9d5445

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Sensing electrochemical signals using a nitrogen-vacancy center in diamond

Autor: Jeronimo R. Maze, Hossein T. Dinani, Enrique Muñoz

Publikováno v: Nanomaterials
Nanomaterials, Vol 11, Iss 358, p 358 (2021)
Volume 11
Issue 2

Chemical sensors with high sensitivity that can be used in extreme conditions and can be miniaturized are of high interest in science and industry. The Nitrogen-vacancy (NV) center in diamond is an ideal candidate as a nanosensor due to the long cohe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b4a9c68007b8463cfa67bccc203d9f7
http://arxiv.org/abs/2012.06814

Susceptibility induced gray-white matter MRI contrast in the human brain

Autor: Franz Fazekas, Nikolaus Krebs, Christian Langkammer, Eva Scheurer, Kathrin Yen, Stefan Ropele, Walter Goessler

Publikováno v: Neuroimage

MR phase images have shown significantly improved contrast between cortical gray and white matter regions compared to magnitude images obtained with gradient echo sequences. A variety of underlying biophysical mechanisms (including iron, blood, myeli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b84451831c32798c1671722030781c37
https://pubmed.ncbi.nlm.nih.gov/21893208

Coupling between two mesoscopic systems towards the measurement of noise

Autor: Nguyen, Thi Kim Thanh

Publikováno v: Condensed Matter [cond-mat]. Université de la Méditerranée-Aix-Marseille II, 2007. English
Condensed Matter [cond-mat]. Université de la Méditerranée-Aix-Marseille II, 2007. English. ⟨NNT : ⟩

The central topic of this thesis is the physics of noise: the Fourier transform of the current-current correlation function in time. We examine situations where the noise generated by a given mesoscopic circuit affects the behavior of another mesosco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0f693a0a6fcf902f3c1c8481b13be0ac
https://tel.archives-ouvertes.fr/tel-00175563