Results 81 to 90 of about 398,926 (227)

Saturation induced coherence loss in coherent backscattering of light

, 2003
We use coherent backscattering (CBS) of light by cold Strontium atoms to study the mutual coherence of light waves in the multiple scattering regime.
B. van Tiggelen, C. Cohen-Tannoudji, C. Miniatura, D. Wilkowski, D.S. Wiersma, R. Kaiser, S.E. Skipetrov, T. Chanelière, Y. Bidel   +8 more
core   +2 more sources

Variable selection in high-dimensional linear models: partially faithful distributions and the PC-simple algorithm

, 2009
We consider variable selection in high-dimensional linear models where the number of covariates greatly exceeds the sample size. We introduce the new concept of partial faithfulness and use it to infer associations between the covariates and the response.
Bühlmann, Peter, Kalisch, Markus, Maathuis, Marloes H.   +2 more
core   +2 more sources

The role of the coherence in the cross-correlation analysis of diffraction patterns from two-dimensional dense mono-disperse systems

, 2015
The investigation of the static and dynamic structural properties of colloidal systems relies on techniques capable of atomic resolution in real space and femtosecond resolution in time.
Carbone, Fabrizio, Latychevskaia, Tatiana, Mancini, Giulia Fulvia   +2 more
core   +2 more sources

Rewriting techniques for relative coherence [PDF]

Logical Methods in Computer Science
A series of works has established rewriting as an essential tool in order to prove coherence properties of algebraic structures, such as MacLane's coherence theorem for monoidal categories, based on the observation that, under reasonable assumptions ...
Samuel Mimram
doaj   +1 more source

Partially coherent fractional vortex beam

Optics Express, 2018
We introduce a new kind of partially coherent vortex (PCV) beam with fractional topological charge named partially coherent fractional vortex (PCFV) beam and derive the propagation formula for such beam passing through a stigmatic ABCD optical system with the help of the convolution method.
Jun Zeng, Xianlong Liu, Fei Wang, Chengliang Zhao, Yangjian Cai   +4 more
openaire   +2 more sources

Relationship between central corneal thickness and axial eye length using partial coherence interferometry

, 2022
Wafaa A.E. Abdelkhalek, Hanan S. Hegazy, Mohamed I. El-Kasaby   +2 more
openalex   +1 more source

Partial Directed Coherence for the Classification of Motor Imagery-Based Brain-Computer Interface [PDF]

, 2022
Muhammad Awais, Mohd Zuki Yusoff
openalex   +1 more source

Temporal and spatial coherence properties of free-electron-laser pulses in the extreme ultraviolet regime

Physical Review Special Topics. Accelerators and Beams, 2011
The average temporal (longitudinal) and spatial (transverse) coherence of free-electron-laser pulses in the extreme ultraviolet at FLASH is measured by interfering two time-delayed partial beams directly on a CCD camera.
S. Roling, B. Siemer, M. Wöstmann, H. Zacharias, R. Mitzner, A. Singer, K. Tiedtke, I. A. Vartanyants   +7 more
doaj   +1 more source

Comparison of Partial Coherence Interferometry and Optic Low Coherence Reflectometry for Intraocular Lens Power Calculation in Cataract Patients

Türk Oftalmoloji Dergisi, 2014
Objectives: To compare the measurements obtained by partial coherence interferometry (PCI) (AL Scan, Nidek) and optical low coherence reflectometry (OLCR) (Lenstar, Haag-Streit AG) and to evaluate the inter-device differences with respect to deviation ...
Mustafa Doğan, Onur Polat, Mahmut Karadaş, Tuncay Küsbeci, Güliz Fatma Yavaş, Sibel İnan, Ümit Übeyt İnan   +6 more
doaj   +1 more source

Axial localization of luminophores by partial coherence interferometry [PDF]

, 2004
Nicolas Sandeau, Hervé Rigneault, Pierre‐François Lenne, Hugues Giovannini   +3 more
openalex   +1 more source