Results 31 to 40 of about 1,504,436 (241)

A Compact Laser Raman Spectrometer Using a Blue Diode Laser and a Novel Combination Backscattering–Sidescattering Geometry

Quantum Beam Science
Laser Raman spectroscopy is a versatile and well-known technique to probe molecular vibrations. The aim of the study is to design and construct a compact, easy-to-use Raman spectrometer and verify its operation. A laser Raman spectrometer was constructed
Kazi Monowar Abedin
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Influence of Excitation Frequency on Raman Modes of Thin Films

Advances in Condensed Matter Physics, 2013
Low energy optical modes of MBE-grown thin films with different values of are investigated using Raman spectroscopy. We also studied the influence of Raman excitation frequency using red and green lasers on scattering intensity of various Raman modes ...
A. Dixit, J. S. Thakur, V. M. Naik, R. Naik   +3 more
doaj   +1 more source

Multifunctional Optical Crystals for All-Solid-State Raman Lasers

Crystals, 2021
In the past few decades, the multifunctional optical crystals for all-solid-state Raman lasers have been widely studied by many scholars due to their compactness, convenience and excellent performance.
Hui Zhao, Shibo Dai, Siqi Zhu, Hao Yin, Zhen Li, Zhenqiang Chen   +5 more
doaj   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

Efficient Pulsed Raman Laser with Wavelength above 2.1 μm Pumped by Noise‐Like Pulse

Advanced Photonics Research
Herein, the efficiently high‐power pulsed Raman lasers with wavelength above 2.1 μm are experimentally demonstrated relying on the stimulated Raman scattering.
Meng Wang, Deqin Ouyang, Yu Lin, Yewang Chen, Minqiu Liu, Junqing Zhao, Xing Liu, Shuangchen Ruan   +7 more
doaj   +1 more source

Multi-Watt Simultaneous Orthogonally Polarized Dual-Wavelength Pulse Generation of an Intracavity Nd:YLF/YVO₄ Raman Laser

IEEE Photonics Journal, 2019
We present the first demonstration of an actively Q-switched orthogonally polarized dual-wavelength Nd:YLF/YVO4 Raman laser to our knowledge. The gain competition of the orthogonally polarized dual-wavelength fundamental laser at 1047 and 1053 nm ...
Zhiyu Zuo, Shibo Dai, Hao Yin, Siqi Zhu, Zhen Li, Zhenqiang Chen, Yi Zheng, Guiyao Zhou   +7 more
doaj   +1 more source

Noise Measurements and Noise Statistical Properties Investigations in a Stimulated Raman Scattering Microscope Based on Three Femtoseconds Laser Sources

Photonics, 2022
To induce a Raman-active transition in a material, stimulated Raman scattering (SRS) spectroscopy/microscopy implementations typically rely on two pulsed laser sources.
Rajeev Ranjan, Giovanni Costa, Maria Antonietta Ferrara, Mario Sansone, Luigi Sirleto   +4 more
doaj   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

Advanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin, Émeline Cournède, Jens Krarup, Michael Lesa, Foyzul Hasan, Amandine Séné, Arnaud Lahouati, David Benhaiem, Jérémie‐Luc Sanchez, Simon Delacroix, Thierry Gacoin, Fabienne Testard, Damien Faivre, David Carriere, Corinne Chevallard, Olivier Taché, Mark A. Levenstein   +16 more
wiley   +1 more source

Cladding-pumped Raman fibre laser sources

, 2011
In this thesis, I investigate cladding-pumped Raman fibre lasers and amplifiers. Such devices, offering a novel way to generate Raman gain, combine the advantages of the hugely successful cladding-pumped rare-earth doped fibre lasers with those of ...
Ji, Junhua
core   +1 more source