Results 61 to 70 of about 3,059,110 (191)
The bandgap-detuned excitation regime in photonic-crystal resonators
Nature CommunicationsControl of nonlinear interactions in microresonators enhances access to classical and quantum field states across nearly limitless bandwidth. A recent innovation has been to leverage coherent scattering of the intraresonator pump field as a control of ...
Yan Jin +6 more
doaj +1 more source
Coherent ultra-violet to near-infrared generation in silica ridge waveguides
Nature Communications, 2017 Continuum generation in optical fibres has enabled many applications, like optical frequency combs. Here, Ohet al. demonstrate controlled dispersive-wave generation in on-chip silica waveguides, which could have a similar impact on integrated devices.
Dong Yoon Oh +5 more
doaj +1 more source
Modern Methods of Time-Frequency Warping of Sound Signals [PDF]
, 2015 Tato práce se zabývá reprezentací nestacionárních harmonických signálů s časově proměnnými komponentami. Primárně je zaměřena na Harmonickou transformaci a jeji variantu se subkvadratickou výpočetní složitostí, Rychlou harmonickou transformaci.
Trzos, Michal
core
An Inverse Problem for Localization Operators
, 2012 A classical result of time-frequency analysis, obtained by I. Daubechies in 1988, states that the eigenfunctions of a time-frequency localization operator with circular localization domain and Gaussian analysis window are the Hermite functions.
+6 more
core +1 more source
New Journal of Physics, 2020 We consider a binary self-attractive Bose–Einstein condensate with Rashba spin–orbit coupling (SOC) in two-dimensional (2D) free space. The formation, stability, and dynamics of vector bright solitons are elucidated through numerical analysis and ...
Ya-Jun Wang +4 more
doaj +1 more source
Asymptotically Exact Localized Expansions for Signals in Time-Frequency Domain
, 2011 Based on a unique waveform with strong exponential localization property, an exact mathematical method for solving problems in signal analysis in time-frequency domain is presented.
Avanesyan, Gagik T. +1 more
core +1 more source
Quantum Flows for Secret Key Distribution in the Presence of the Photon Number Splitting Attack
Entropy, 2014 Physical implementations of quantum key distribution (QKD) protocols, like the Bennett-Brassard (BB84), are forced to use attenuated coherent quantum states, because the sources of single photon states are not functional yet for QKD applications. However,
Luis A. Lizama-Pérez +3 more
doaj +1 more source
Versatile laser-free trapped-ion entangling gates
New Journal of Physics, 2019 We present a general theory for laser-free entangling gates with trapped-ion hyperfine qubits, using either static or oscillating magnetic-field gradients combined with a pair of uniform microwave fields symmetrically detuned about the qubit frequency ...
R T Sutherland +8 more
doaj +1 more source
Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes
IEEE Photonics Journal, 2011 Fluctuations of the optical power incident on a photodiode can be converted into phase fluctuations of the resulting electronic signal due to nonlinear saturation in the semiconductor.
J. Taylor +6 more
doaj +1 more source
Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy
APL Photonics, 2018 Laser frequency combs, with their unique combination of precisely defined spectral lines and broad bandwidth, are a powerful tool for basic and applied spectroscopy.
Nima Nader +11 more
doaj +1 more source