Results 51 to 60 of about 2,413,261 (306)
Laser Raman Induced Degradation of Macromolecular Carbon in Coals and Meteorites
Earth and Space Science, 2023 Macromolecular carbon (MMC) is a polymeric solid form of carbon formed from numerous natural and anthropogenic processes. MMC is found in geologic samples, such as coals, meteorites, and metamorphic rocks, and the microstructure of the MMC provides ...
Ryan S. Jakubek, Marc D. Fries
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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 +5 more
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FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Characterization of Multi-Pass Enhanced Raman Spectroscopy for Gaseous Measurement
AnalyticaWith the rise in global temperatures, it is of great significance to achieve rapid and accurate detection of greenhouse gases, such as carbon dioxide and methane.
Miao Fan, Huinan Yang, Jun Chen
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An Electro-Optic, Actively Q-Switched Tm:YAP/KGW External-Cavity Raman Laser at 2273 nm and 2344 nm
Photonics, 2021 This paper presents a KGW Raman laser with an external-cavity configuration in the 2 μm region. The Raman laser is pumped by unique, electro-optic, actively Q-switched Tm:Yap laser, emitting at 1935 nm.
Rotem Nahear +3 more
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1.4 µm continuous-wave diamond Raman laser.
Optics Express, 2017 The longest wavelength (~1.4 µm) emitted by a diamond Raman laser pumped by a semiconductor disk laser (SDL) is reported. The output power of the intracavity-pumped Raman laser reached a maximum of 2.3 W with an optical conversion efficiency of 3.4% with
Riccardo Casula +4 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
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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 +3 more
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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 +7 more
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source