Results 101 to 110 of about 6,950,236 (300)

A systematic analysis of parametric instabilities in nonlinear parabolic multimode fibers

open access: yesAPL Photonics, 2019
We provide a systematic analysis of geometric parametric instabilities in nonlinear graded-index multimode fibers. Our approach implicitly accounts for self-focusing effects and considers dispersion processes to all orders. It is shown that the resulting
H. E. Lopez-Aviles   +6 more
doaj   +1 more source

Molecular organic photonics [PDF]

open access: yes, 1994
The work presented in this thesis is derived from experimentation in the field of molecular organic photonics. This is done from the standpoint that devices cannot be understood without recourse to the molecular properties and vice versa. A background of
Gray, David, Gray, D
core  

Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley   +1 more source

Asynchronous multi-photon interference for quantum networks

open access: yesnpj Quantum Information
Abstract: Advanced quantum communication protocols require high-visibility quantum interference between photons generated at distant nodes, which places stringent demands on optical synchronization. Conventionally, synchronization of optical wave packets
Baghdasar Baghdasaryan   +13 more
doaj   +1 more source

Metasurface integrated with double-helix point spread function and metalens for three-dimensional imaging

open access: yesNanophotonics, 2019
Metasurfaces are two-dimensional arrangements of antennas that control the propagation of electromagnetic waves with a subwavelength thickness and resolution.
Jin Chunqi, Zhang Jihua, Guo Chunlei
doaj   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti   +11 more
wiley   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

Tailoring the structural and non-linear optical properties of TiO2 nanoparticles via solvent-directed green synthesis

open access: yesDiscover Materials
The development of materials with tunable structural and optical properties stands at the forefront of contemporary scientific research, given their broad applicability.
Prakash Nandi   +3 more
doaj   +1 more source

CHILDREN’S UNIVERSITY: OPTICS AND PHOTONICS FOR CHILDREN [PDF]

open access: yes, 2015
Today, optics and photonics is widely regarded as one of the most important key technologies for this century. Many experts even anticipate that the 21st century will be the century of the photon.
Dana Seyringer, Seyringer, Dana
core  

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