Results 1 to 10 of about 233,359 (137)

Cavity-enhanced Raman microscopy of individual carbon nanotubes [PDF]

open access: yesNature Communications, 2016
Enhancement techniques are a viable route to improve the intrinsically weak Raman scattering intensity. Here the authors demonstrate Purcell enhancement of Raman scattering in a tunable, high-finesse microcavity and use it for Raman imaging of individual
Thomas Hümmer   +5 more
doaj   +3 more sources

Comparison of coherent phonon generation by electronic and ionic Raman scattering in LaAlO_{3}

open access: yesPhysical Review Research, 2021
In ionic Raman scattering, infrared-active phonons mediate a scattering process that results in the creation or destruction of a Raman-active phonon. This mechanism relies on nonlinear interactions between phonons and has in recent years been associated ...
Martin J. Neugebauer   +7 more
doaj   +1 more source

Raman Scattering-Based Biosensing: New Prospects and Opportunities

open access: yesBiosensors, 2021
The growing interest in the development of new platforms for the application of Raman spectroscopy techniques in biosensor technologies is driven by the potential of these techniques in identifying chemical compounds, as well as structural and functional
Kseniya V. Serebrennikova   +4 more
doaj   +1 more source

Atmosphere Activity Measurement by LED Raman Mini Lidar [PDF]

open access: yesEPJ Web of Conferences, 2020
The LED mini lidar was improved to monitor Raman scattering echoes. The Raman scattering signal indicates a certain gas concentration and it can distinguish the target from the other materials.
Shiina Tatsuo
doaj   +1 more source

A New Gas Analysis Method Based on Single-Beam Excitation Stimulated Raman Scattering in Hollow Core Photonic Crystal Fiber Enhanced Raman Spectroscopy

open access: yesBioengineering, 2023
We previously developed a hollow-core photonic crystal fiber (HCPCF) based Raman scattering enhancement technique for gas/human breath analysis. It enhances photon–gas molecule interactions significantly but is still based on CW laser excitation ...
Maryam Shirmohammad   +2 more
doaj   +1 more source

Recent advances in Raman and surface enhanced Raman spectroelectrochemistry

open access: yesFrontiers in Nanotechnology, 2023
Raman spectroscopy could supply the molecular vibrational process giving the detailed information of molecular structure. At the same time, electrochemistry could provide kinetic and thermodynamic processes.
Kang Yue   +6 more
doaj   +1 more source

Frequency shifts in stimulated Raman scattering [PDF]

open access: yes, 1980
The nonresonant contributions to the nonlinear susceptibility χ(3) produce a frequency chirp during stimulated Raman scattering. In the case of transient stimulated Raman scattering, the spectrum of the generated Stokes pulse is found at higher ...
Kaiser, Wolfgang, Zinth, Wolfgang
core   +1 more source

Raman Techniques: Fundamentals and Frontiers

open access: yesNanoscale Research Letters, 2019
Driven by applications in chemical sensing, biological imaging and material characterisation, Raman spectroscopies are attracting growing interest from a variety of scientific disciplines.
Robin R. Jones   +4 more
doaj   +1 more source

Novel Technique for Obtaining the Raman Gain Efficiency of Silica Fibers

open access: yesIEEE Photonics Journal, 2013
We present a simple novel technique that determines with precision the Raman gain efficiency for telecom fibers. The method is supported by a mathematical relation, which is the solution for the coupled differential equations that govern the stimulated ...
L. de la Cruz-May   +5 more
doaj   +1 more source

Temperature induced modulation of resonant Raman scattering in bilayer 2H-MoS2

open access: yesScientific Reports, 2022
The temperature evolution of the resonant Raman scattering from high-quality bilayer 2H-MoS $$_{2}$$ 2 encapsulated in hexagonal BN flakes is presented. The observed resonant Raman scattering spectrum as initiated by the laser energy of 1.96 eV, close to
Mukul Bhatnagar   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy