Results 51 to 60 of about 1,199,811 (345)

Electromagnetically induced transparency : Optics in coherent media

open access: yes, 2005
Coherent preparation by laser light of quantum states of atoms and molecules can lead to quantum interference in the amplitudes of optical transitions.
M. Fleischhauer   +2 more
semanticscholar   +1 more source

dbscan: Fast Density-Based Clustering with R

open access: yesJournal of Statistical Software, 2019
This article describes the implementation and use of the R package dbscan, which provides complete and fast implementations of the popular density-based clustering algorithm DBSCAN and the augmented ordering algorithm OPTICS. Package dbscan uses advanced
Michael Hahsler   +2 more
doaj   +1 more source

Monocular Real Time Full Resolution Depth Estimation Arrangement with a Tunable Lens

open access: yesApplied Sciences, 2022
This work introduces a real-time full-resolution depth estimation device, which allows integral displays to be fed with a real-time light-field. The core principle of the technique is a high-speed focal stack acquisition method combined with an efficient
Ricardo Oliva-García   +3 more
doaj   +1 more source

Principles of optics : electromagnetic theory of propagation, interference and diffraction of light

open access: yes, 1999
Historical introduction 1. Basic properties of the electromagnetic field 2. Electromagnetic potentials and polarization 3. Foundations of geometrical optics 4. Geometrical theory of optical imaging 5. Geometrical theory of aberrations 6.
M. Born, Emil Wolf, Eugene Hecht
semanticscholar   +1 more source

Primary extranodal diffuse large B‐cell lymphoma: Molecular features, treatment, and prognosis

open access: yesAging and Cancer, Volume 3, Issue 3-4, Page 133-146, September-December 2022., 2022
One‐third of DLBCL arises from extranodal organs and is challenging to manage. Molecular features are critical to elucidate the differences in clinical features, predict the disease prognosis, and improve effective targeted therapeutic strategies. Abstract Diffuse large B‐cell lymphoma (DLBCL) is the most common subtype of non‐Hodgkin's lymphoma and ...
Si‐Yuan Chen   +3 more
wiley   +1 more source

Design and Optimization of a Linear Wavenumber Spectrometer with Cylindrical Optics for Line Scanning Optical Coherence Tomography

open access: yesSensors, 2021
We report the design of a high-efficiency spectral-domain spectrometer with cylindrical optics for line scanning optical coherence tomography (OCT). The spectral nonlinearity in k space (wavenumber) lowers the depth-dependent signal sensitivity of the ...
Sevin Samadi   +2 more
doaj   +1 more source

Controlling photonic structures using optical forces [PDF]

open access: yesNature 462, 633-636 (3 December 2009), 2009
The downscaling of optical systems to the micro and nano-scale results in very compliant systems with nanogram-scale masses, which renders them susceptible to optical forces. Here we show a specially designed resonant structure for enabling efficient static control of the optical response with relatively weak repulsive and attractive optical forces ...
arxiv   +1 more source

Spillover and crossover effects of exposure to work‐related aggression and adversities: A dyadic diary study

open access: yesAggressive Behavior, Volume 49, Issue 1, Page 85-95, January 2023., 2023
Abstract The past two decades have produced extensive evidence on the manifold and severe outcomes for victims of aggression exposure in the workplace. However, due to the dominating individual‐centered approach, most findings miss a social network perspective.
Alexander Herrmann   +2 more
wiley   +1 more source

Noble Metal Particles Confined in Zeolites: Synthesis, Characterization, and Applications

open access: yesAdvanced Science, 2019
Noble metal nanoparticles or subnanometric particles confined in zeolites, that is, metal@zeolite, represent an important type of functional materials with typical core–shell structure.
Yuchao Chai   +6 more
doaj   +1 more source

Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator

open access: yesApplied Sciences, 2019
The significance of this work lies in the development of a novel code-based, detailed, and deterministic geometrical approach that couples the optimization of the Fresnel lens primary optical element (POE) and the dome-shaped secondary optical element ...
Hassan Qandil   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy