Results 51 to 60 of about 3,059,110 (191)
Time-Frequency Dynamics of Biofuels-Fuels-Food System
, 2012 For the first time, we apply the wavelet coherence methodology on biofuels (ethanol and biodiesel) and a wide range of related commodities (gasoline, diesel, crude oil, corn, wheat, soybeans, sugarcane and rapeseed oil).
Janda, Karel +3 more
core +1 more source
Spatially Resolved Precision Measurement of Magnetic Field Using Ultracold Cesium Atoms as Sensors
AtomsSub-Doppler laser-cooled cesium-133 atoms are utilized as quantum sensors to achieve precise mapping of magnetic fields across a region in ultra-high vacuum (UHV), with a spatial resolution of 1 cm and a sensitivity of approximately 550 pT/√Hz, enabling ...
Anjali Bisht, Manoj Das, Poonam Arora
doaj +1 more source
Scientific Reports, 2017 The elemental Nb is mainly investigated for its eminent superconducting properties. In contrary, we report of a relatively unexplored property, namely, its superior optoelectronic property in reduced dimension.
Shafaq Kazim +10 more
doaj +1 more source
Pump-Enhanced Idler-Resonant 1626 nm Optical Parametric Oscillator
PhotonicsThe 1626 nm laser is an essential component for conducting superlattice research on the strontium atomic clock platform. The superlattice constructed with the 1626 nm and 813 nm lasers will facilitate cutting-edge quantum information research focused on ...
Yanyan Liu +7 more
doaj +1 more source
Meta-Dispersion for Microcomb Spectral Design in Photonic-Crystal Rings [PDF]
EPJ Web of ConferencesMicrocombs, essential for various applications, benefit from tailored spectral shaping. Leveraging inverse design, we demonstrate versatile ”meta” dispersion control via multimode hybridization in photonic crystal ring resonators, offering promising ...
Lucas Erwan +4 more
doaj +1 more source
P-step Kalman-like unbiased FIR algorithm for detecting anomalies of atomic clocks
Measurement + Control, 2023 An extended measurement model anomaly detection algorithm for atomic clocks is proposed based on the p-step Kalman-like iterative Unbiased finite impulse response (UFIR) algorithm. The novel of the proposed algorithm is that it breaks the disadvantage of
Ran Yan +3 more
doaj +1 more source
Time-Frequency Analysis of Fourier Integral Operators [PDF]
, 2007 We use time-frequency methods for the study of Fourier Integral operators (FIOs). In this paper we shall show that Gabor frames provide very efficient representations for a large class of FIOs.
Cordero, Elena +2 more
core
A time frequency analysis of wave packet fractional revivals
, 2007 We show that the time frequency analysis of the autocorrelation function is, in many ways, a more appropriate tool to resolve fractional revivals of a wave packet than the usual time domain analysis.
Auger F Flandrin P Goncalves P Lemoine O +13 more
core +1 more source
Multi-dimensional data transmission using inverse-designed silicon photonics and microcombs
Nature Communications, 2022 The authors demonstrate a multi-dimensional communication scheme that combines wavelength- and mode- multiplexing on photonic integrated circuits using foundry-compatible photonic inverse design and spectrally flattened ...
Ki Youl Yang +42 more
doaj +1 more source
Time-Frequency Packing for High Capacity Coherent Optical Links
, 2014 We consider realistic long-haul optical links, with linear and nonlinear impairments, and investigate the application of time-frequency packing with low-order constellations as a possible solution to increase the spectral efficiency.
Colavolpe, Giulio, Foggi, Tommaso
core +1 more source