Results 21 to 30 of about 1,013,031 (328)
Review of advanced imaging techniques
Pathology informatics encompasses digital imaging and related applications. Several specialized microscopy techniques have emerged which permit the acquisition of digital images ("optical biopsies") at high resolution.
Yu Chen +5 more
doaj +1 more source
Deep learning in light–matter interactions
The deep-learning revolution is providing enticing new opportunities to manipulate and harness light at all scales. By building models of light–matter interactions from large experimental or simulated datasets, deep learning has already improved the ...
Midtvedt Daniel +5 more
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Transformation Optics and the Geometry of Light [PDF]
Metamaterials are beginning to transform optics and microwave technology thanks to their versatile properties that, in many cases, can be tailored according to practical needs and desires.
Leonhardt, Ulf, Philbin, Thomas G.
core +2 more sources
Optical near-fields & nearfield optics
Optical methods provide exceedingly powerful tools in science and technology for measuring, analyzing and manipulating, from optical microscopy and spectroscopy to the characterization of ultrafast processes by femtosecond pulses and the modification of materials by intense laser radiation. However, when it comes to applications in the nanometer-regime,
Meixner, Alfred J., Leiderer, Paul
openaire +4 more sources
A Review of Compressive Sensing in Information Security Field
The applications of compressive sensing (CS) in the field of information security have captured a great deal of researchers' attention in the past decade. To supply guidance for researchers from a comprehensive perspective, this paper, for the first time,
Yushu Zhang +5 more
doaj +1 more source
Atmospheric tomography with separate minimum variance laser and natural guide star mode control [PDF]
This paper introduces a novel, computationally efficient, and practical atmospheric tomography wavefront control architecture with separate minimum variance laser and natural guide star mode estimation.
Ellerbroek, B. L., Gilles, L.
core +1 more source
The proposed silicon-on-nitride (SON) waveguide exhibits an ultrabroadband (4200 nm), low chromatic dispersion in the mid-infrared (MIR) wavelength region from 2430 to 6630 nm. It has two zero-dispersion wavelengths within the span.
Yang Yue +4 more
doaj +1 more source
Low-Power All-Optical Switch Based on Time-Reversed Microring Laser
An all-optical switch based on an absorbing microring resonator laterally coupled to two waveguides is described theoretically using the coupling of modes in time formalism and numerically using the finite-difference time-domain method.
Adam Mock
doaj +1 more source
Time-reversed wave mixing in nonlinear optics [PDF]
Time-reversal symmetry is important to optics. In linear optics, a time-reversed process to laser emission enables total absorption of coherent light fields into an optical cavity of loss by time-reversing the original gain medium.
Chen, Xianfeng +3 more
core +2 more sources
A new perturbative expansion of the time evolution operator associated with a quantum system
A novel expansion of the evolution operator associated with a -- in general, time-dependent -- perturbed quantum Hamiltonian is presented. It is shown that it has a wide range of possible realizations that can be fitted according to computational ...
Agarwal G S +28 more
core +1 more source

