Results 31 to 40 of about 2,931 (177)

Measurement-induced collective vibrational quantum coherence under spontaneous Raman scattering in a liquid

open access: yesNature Communications, 2023
Spontaneous vibrational Raman scattering is a ubiquitous form of light–matter interaction whose description necessitates quantization of the electromagnetic field.
Valeria Vento   +3 more
doaj   +1 more source

Coherent anti-Stokes Raman spectroscopy of single and multi-layer graphene

open access: yesNature Communications, 2019
Coherent anti-Stokes Raman Scattering (CARS) accesses the vibrational properties of a material via nonlinear four-wave mixing (FWM); CARS in graphene has not been observed to date despite its high nonlinear third-order susceptibility.
A. Virga   +7 more
doaj   +1 more source

Coherent anti-Stokes Raman scattering imaging of lipids in cancer metastasis

open access: yesBMC Cancer, 2009
Background Lipid-rich tumours have been associated with increased cancer metastasis and aggressive clinical behaviours. Nonetheless, pathologists cannot classify lipid-rich tumours as a clinically distinctive form of carcinoma due to a lack of ...
Cheng Ji-Xin, Huff Terry B, Le Thuc T
doaj   +1 more source

Longitudinal Morphomolecular Monitoring of Head and Neck Carcinogenesis

open access: yesAdvanced Science, EarlyView.
A miniaturized endoscopic probe that integrates Raman spectroscopy and optical coherence tomography, enabling simultaneous molecular and structural imaging of living tissue, was developed. Applied longitudinally in a mouse model of head and neck cancer, the system tracks disease progression from precancerous lesions to invasive cancer.
Jianrong Qiu   +7 more
wiley   +1 more source

Waveguide-based optical parametric oscillator for coherent anti-Stokes Raman scattering [PDF]

open access: yesEPJ Web of Conferences
A Si3N4 waveguide-based optical parametric oscillator is presented that generates narrowband output pulses down to 1.44 nm and with up to 211 pJ pulse energy, allowing coherent Raman scattering spectroscopy and microscopy with sufficient spectral ...
Gao Ming   +2 more
doaj   +1 more source

Pressure‐Tuned Superconducting Dome and Persistent Charge‐Density‐Wave Order in NdSeTe2

open access: yesAdvanced Science, EarlyView.
NdSeTe2 exhibits an unusual pressure‐tuned phase diagram in which charge‐density‐wave order does not disappear at optimal superconductivity. Instead, Raman spectroscopy reveals a transformation from long‐range to short‐range correlations that remain invisible to resistivity and persist across the entire superconducting dome.
Shuyang Wang   +6 more
wiley   +1 more source

Transport–Reaction–Signal Coupling in Lateral Flow Assays for Next‐Generation Point‐of‐Care Diagnostics

open access: yesAdvanced Science, EarlyView.
Lateral flow assays are evolving into interdisciplinary, system‐level sensing platforms. Recent innovations are deconstructed through coupled phases of mass transfer, reaction, and signal transduction, revealing interdependence across porous materials, interfacial chemistry, nanolabels, readout devices, and data‐enabled analysis.
Yan Pan   +6 more
wiley   +1 more source

Thousand foci coherent anti-Stokes Raman scattering microscopy

open access: yesAPL Photonics
We demonstrate coherent anti-Stokes Raman scattering (CARS) microscopy with 1089 foci, enabled by a high repetition rate amplified oscillator and an optical parametric amplifier.
Dominykas Gudavičius   +2 more
doaj   +1 more source

Phase aspects of (broadband) stimulated Raman scattering

open access: yesReviews in Analytical Chemistry, 2012
The phase of the molecular response can be exploited to improve selectivity without sacrificing speed in both narrowband and broadband coherent anti-Stokes Raman scattering (CARS) microscopy, both of which will be considered in this review of the work ...
Offerhaus Herman L.   +4 more
doaj   +1 more source

NTECARS: A Nonthermal Equilibrium CARS Spectra Fitting Code

open access: yesJournal of Raman Spectroscopy, EarlyView.
We present NTECARS, an open‐source code written in Julia for the calculation and fitting of CARS spectra under nonequilibrium conditions. Rovibrational distributions can be flexibly modeled and fitted for different use cases. The code currently implements CO2$$ \mathrm{C}{\mathrm{O}}_2 $$ and N2$$ {\mathrm{N}}_2 $$ molecules and is validated under ...
Christian A. Busch, Uwe Czarnetzki
wiley   +1 more source

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