Results 101 to 110 of about 6,131,979 (297)

Direct Kerr-frequency-comb atomic spectroscopy

open access: yes, 2018
Microresonator-based soliton frequency combs - microcombs - have recently emerged to offer low-noise, photonic-chip sources for optical measurements.
Jordan R. Stone (3963479)   +10 more
core   +1 more source

Advances in Unraveling the Structure and Sodium‐Ion Storage Behaviors of Hard Carbons: From Basic to Extended Characterization Techniques

open access: yesCarbon Energy, EarlyView.
This review is devoted to introducing the structures and sodium storage mechanisms of hard carbon materials and analyzing the correlated advanced characterization techniques. The advanced characterization techniques are categorized based on the classification of signal sources.
Jiechang Gao   +6 more
wiley   +1 more source

Optical frequency combs and optical frequency measurements

open access: yes, 2014
Self-referenced optical frequency combs are nowadays the instrument of choice in time and frequency metrology when dealing with high accuracy and stability measurements of optical frequencies. Beyond this purely measurement activity, they also have new high performance applications, such as low phase noise microwave generation and transfer of spectral ...
Le Coq, Yann   +6 more
openaire   +3 more sources

Dual-frequency comb in fiber Fabry–Perot resonator

open access: yesAPL Photonics
This paper presents a novel approach to dual-frequency comb generation utilizing a single fiber Fabry–Perot resonator, advancing the implementation of these sources in fiber-based systems. Dual-comb applications such as spectroscopy, ranging, and imaging,
Thomas Bunel   +5 more
doaj   +1 more source

Thermodynamic sensitivity and transferability limitations of Pharma Mod UNIFAC for aqueous solubility prediction of sulfonamide APIs

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Predicting the aqueous solubility of active pharmaceutical ingredients (APIs) remains challenging because highly dilute systems are particularly sensitive to activity‐coefficient calculations and solid‐reference thermodynamic properties. In this work, we evaluated Pharma Mod UNIFAC for predicting the aqueous solubility of sulfonamide‐based ...
Geovanny E. Pan‐Echeverría   +3 more
wiley   +1 more source

Spectral Shaping of an Optical Frequency Comb to Control Atomic Dynamics

open access: yesPhotonics
In advanced spectroscopy, the classical symmetric optical frequency comb is limited in temporal flexibility and selection freedom, which constrains the efficiency and stability of quantum manipulation.
Yichi Zhang   +3 more
doaj   +1 more source

Direct generation of optical frequency combs in χ(2) nonlinear cavities

open access: yesNanophotonics, 2016
Quadratic nonlinear processes are currently exploited for frequency comb transfer and extension from the visible and near infrared regions to other spectral ranges where direct comb generation cannot be accomplished.
Mosca Simona   +6 more
doaj   +1 more source

Micro-resonator frequency comb source based time domain Hilbert transform

open access: yes, 2016
We demonstrate a temporal Hilbert transformer based on an integrated microresonator optical frequency comb source, and perform a temporal transform of a Gaussian pulse with a fullwidth half maximum of 0.12ns. © OSA 2016.
Sai T. Chu   +15 more
core   +1 more source

Frequency-comb-linearized, widely tunable lasers for coherent ranging

open access: yes, 2023
Tunable lasers, with the ability to continuously adjust their emission wavelengths, have found widespread applications across various fields such as biomedical imaging, coherent ranging, optical communications and spectroscopy.
Baoqi Shi (14776669)   +7 more
core   +1 more source

Interface‐Engineered MXene/g‐C3N4 Heterostructures for Energy and Environmental Applications

open access: yesEcoEnergy, EarlyView.
This review highlights how interface engineering in MXene/g‐C3N4 heterostructures regulates charge transfer, band alignment, and surface chemistry, enabling broad applications in photocatalytic conversion, environmental remediation, energy storage, and multifunctional sensing/therapy. ABSTRACT Two‐dimensional MXene/g‐C3N4 heterostructures have recently
Feng Wang, Geng Liu, Xiaoqiang An
wiley   +1 more source

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