Results 11 to 20 of about 817,623 (294)
High index contrast photonic platforms for on-chip Raman spectroscopy [PDF]
, 2019 Nanophotonic waveguide enhanced Raman spectroscopy (NWERS) is a sensing technique that uses a highly confined waveguide mode to excite and collect the Raman scattered signal from molecules in close vicinity of the waveguide. The most important parameters
Baets, Roel +12 more
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Communications Physics, 2022 Non-linearity and energy dissipation in athermal disordered solids undergoing strain-induced yielding and fluidization remain poorly understood. Here, the authors use oscillatory shear rheology, in-situ imaging, and particle settling experiments to study
Sebanti Chattopadhyay +2 more
doaj +1 more source
Time-Encoded Raman: Fiber-based, hyperspectral, broadband stimulated Raman microscopy [PDF]
, 2014 Raman sensing and Raman microscopy are amongst the most specific optical technologies to identify the chemical compounds of unknown samples, and to enable label-free biomedical imaging with molecular contrast.
Eibl, Matthias +4 more
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Fiber Raman Amplifiers and Fiber Raman Lasers [PDF]
Micromachines, 2020 Stimulated Raman scattering (SRS) is a nonlinear optical effect, observed for the first time in 1962, which lies at the heart of fiber Raman amplifiers and fiber Raman lasers [...]
openaire +4 more sources
A new Raman technique of superior spectral resolution [PDF]
, 1982 Raman-active vibrational modes are coherently excited by the transient stimulated Raman process. A subsequent delayed probe of relatively long duration interacts with the freely relaxing vibrations.
Akhmanov +14 more
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Fermi energy dependence of first- and second-order Raman spectra in graphene: Kohn anomaly and quantum interference effect [PDF]
, 2016 Intensity of the first- and the second-order Raman spectra are calculated as a function of the Fermi energy. We show that the Kohn anomaly effect, i.e., phonon frequency renormalization, in the first-order Raman spectra originates from the phonon ...
Dresselhaus, Mildred +3 more
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Quantitative analysis of powder mixtures by raman spectrometry : the influence of particle size and its correction [PDF]
, 2012 Particle size distribution and compactness have significant confounding effects on Raman signals of powder mixtures, which cannot be effectively modeled or corrected by traditional multivariate linear calibration methods such as partial least-squares ...
Aarnoutse P. J. +40 more
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Study of dynamical heterogeneities in colloidal nanoclay suspensions approaching dynamical arrest
Scientific Reports, 2017 The dynamics of aqueous Laponite clay suspensions slow down with increasing sample waiting time (t w ). This behavior, and the material fragility that results, closely resemble the dynamical slowdown in fragile supercooled liquids with decreasing ...
Paramesh Gadige +3 more
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X-Ray Flares in the Long-term Light Curve of Low-luminosity Active Galactic Nucleus M81*
The Astrophysical Journal, 2023 Most active galactic nuclei at the center of the nearby galaxies have supermassive black holes accreting at sub-Eddington rates through hot accretion flows or radiatively inefficient accretion flows, which efficiently produce jets.
Gunjan Tomar, Nayantara Gupta
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Microplastics, 2023 Microplastics (MPs) are ubiquitous and evasive in nature. They can be found in complex agricultural matrices like soil and compost. In the literature, extracting MPs from soil is more prevalent; nonetheless, the same instruments in extraction in soil ...
Adeola Adelugba, Chijioke Emenike
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