Results 31 to 40 of about 365,427 (304)

Compact, spatial-mode-interaction-free, ultralow-loss, nonlinear photonic integrated circuits

open access: yes, 2021
Nonlinear photonics based on integrated circuits has enabled applications such as parametric amplifiers, soliton frequency combs, supercontinua, and non-reciprocal devices. Ultralow optical loss and the capability for dispersion engineering are essential,
Zheru Qiu (14407293)   +6 more
core   +1 more source

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

open access: yesNanophotonics, 2020
The burgeoning advances of spatial mode conversion in few-mode fibers emerge as the investigative hotspot in novel structured light manipulation, in that, high-order modes possess a novel fundamental signature of various intensity profiles and unique ...
Lu Jiafeng   +8 more
doaj   +1 more source

High dynamic range spatial mode decomposition

open access: yesOptics Express, 2020
An accurate readout of low-power optical higher-order spatial modes is of increasing importance to the precision metrology community. Mode sensors are used to prevent mode mismatches from degrading quantum and thermal noise mitigation strategies. Direct mode analysis sensors (MODAN) are a promising technology for real-time monitoring of arbitrary ...
A. W. Jones   +3 more
openaire   +3 more sources

Learning the matrix of few-mode fibers for high-fidelity spatial mode transmission

open access: yesAPL Photonics, 2022
Few-mode fibers (FMFs) are promising for advancements in transmission capacity in classical and quantum communications. However, the inherent modal crosstalk limits the practical application of FMF.
Qian Zhang   +3 more
doaj   +1 more source

Transcoder for the spatial and temporal modes of a photon

open access: yesOptics Express, 2016
10 pages, 7 ...
Shi, Shuai   +6 more
openaire   +3 more sources

Spatial structure governs the mode of tumour evolution [PDF]

open access: yesNature Ecology & Evolution, 2021
Abstract Characterizing the mode—the way, manner or pattern—of evolution in tumours is important for clinical forecasting and optimizing cancer treatment. Sequencing studies have inferred various modes, including branching, punctuated and neutral evolution, but it is unclear why a particular pattern predominates in any given tumour ...
Robert Noble   +6 more
openaire   +5 more sources

Controlling of spatial modes in multi-mode photonic crystal nanobeam cavity

open access: yesOptics Express, 2022
We numerically and experimentally present the characteristics of disturbed spatial modes (air mode and dielectric mode) in multi-mode photonic crystal nanobeam cavity (PCNC) in the mid-infrared wavelength range. The results show that the resonance wavelength of the spatial modes can be controlled by modifying the size, period and position of the ...
Fujun Sun   +5 more
openaire   +2 more sources

Fast mode decision for the H.264∕AVC video coding standard based on frequency domain motion estimation [PDF]

open access: yes, 2011
The H.264 video coding standard achieves high performance compression and image quality at the expense of increased encoding complexity. Consequently, several fast mode decision and motion estimation techniques have been developed to reduce the ...
Ait-Boudaoud, Djamel   +7 more
core   +1 more source

Spatial-Dependent Hamiltonian Formulation of Cross-Mode Modulation

open access: yesIEEE Photonics Journal, 2020
In the absence of random mode mixing (RMM), linearization of the cross-mode modulation (XMM) under pump-probe configuration is in general complicated because the evolution of the pump light depends on the local mode decomposition of itself. In this work,
Haofan Yang   +5 more
doaj   +1 more source

Modelling count data with overdispersion and spatial effects [PDF]

open access: yes, 2005
In this paper we consider regression models for count data allowing for overdispersion in a Bayesian framework. Besides the inclusion of covariates, spatial effects are incorporated and modelled using a proper Gaussian conditional autoregressive prior ...
Gschlößl, Susanne, Czado, Claudia
core   +1 more source

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