Results 21 to 30 of about 114,268 (293)

Random number generation from spontaneous Raman scattering

open access: yesApplied Physics Letters, 2015
Matthew J Collins   +2 more
exaly   +2 more sources

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

Modeling and Minimizing Spontaneous Raman Scattering for QKD Secured DWDM Networks

open access: yesIEEE Communications Letters, 2021
Quantum key distribution (QKD) provides information-theoretic security based on quantum mechanics. Integrating QKD with classical data traffic by using wavelength division multiplexing (WDM) techniques in a single fibre is a cost-efficient way to improve
R. Lin, Jiajia Chen
semanticscholar   +1 more source

Investigation of Spontaneous Raman Scattering in Few-Mode Fibers: Dependence on Polarization and Spatial Modes

open access: yesJournal of Lightwave Technology, 2021
We study Raman gain in few-mode fibers (FMFs) by measuring spontaneous Raman scattering in polarization-maintaining FMF, mode-maintaining FMF and common FMF.
Zhenzhen Zhang   +8 more
semanticscholar   +1 more source

A Review of Raman-Based Technologies for Bacterial Identification and Antimicrobial Susceptibility Testing

open access: yesPhotonics, 2022
Antimicrobial resistance (AMR) is a global medical threat that seriously endangers human health. Rapid bacterial identification and antimicrobial susceptibility testing (AST) are key interventions to combat the spread and emergence of AMR.
Weifeng Zhang   +3 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

Overview of Popular Techniques of Raman Spectroscopy and Their Potential in the Study of Plant Tissues

open access: yesMolecules, 2021
Raman spectroscopy is one of the main analytical techniques used in optical metrology. It is a vibration, marker-free technique that provides insight into the structure and composition of tissues and cells at the molecular level. Raman spectroscopy is an
Aneta Saletnik   +2 more
doaj   +1 more source

Time-ordering in Heisenberg’s equation of motion as related to spontaneous radiation

open access: yesScientific Reports, 2021
Despite many years of research into Raman phenomena, the problem of how to include both spontaneous and stimulated Raman scattering into a unified set of partial differential equations persists.
Benjamin D. Strycker
doaj   +1 more source

Quantum jumps via spontaneous Raman scattering [PDF]

open access: yesPhysical Review A, 1987
A single laser, which is used to induce and detect spontaneous Raman transitions, can be used to observe quantum jumps in a single atom. The population dynamics of a particular system, consisting of two S1/22 ground-state levels and four P3/22 excited-state levels split by a magnetic field, is analyzed for a laser tuned near a particular transition. We
Hulet, Randall G., Wineland, D.J.
openaire   +3 more sources

Non-Intrusive Velocity Measurement of Millichannel Flow by Spontaneous Raman Imaging

open access: yesJournal of Thermal Science and Technology, 2012
A non-intrusive measurement technique based on spontaneous Raman imaging was proposed for investigating microscale flow structures. It has the advantage that it does not require tracer particles or fluorescent dye to measure fluid velocity and scalar ...
Motoyuki TAKAHASHI   +3 more
doaj   +1 more source

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