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External-Cavity Quantum Cascade Laser-Based Gas Sensor for Sulfur Hexafluoride Detection

open access: yesChemosensors, 2022
The external-cavity quantum cascade laser (ECQCL) is an ideal mid-infrared (MIR) spectral light source for determining large molecular-absorption spectral features with broad transition bands.
Xingyu Pan   +4 more
doaj   +1 more source

Simultaneous Detection of CO2 and CH4 Using a DFB Diode Laser-Based Absorption Spectrometer

open access: yesChemosensors, 2022
In this paper, an attractive gas sensing technique based on fiber optical sensing ideal was developed for the detection of multi-gas species simultaneously.
Xu Wu   +7 more
doaj   +1 more source

An Effective Route for the Growth of Multilayer MoS2 by Combining Chemical Vapor Deposition and Wet Chemistry

open access: yesAdvances in Condensed Matter Physics, 2022
Molybdenum disulfide (MoS2) is an actively pursuing material of the 2D family due to its semiconducting characteristics, making it a potential candidate for nano and optoelectronics application.
Ziyad M. Almohaimeed   +5 more
doaj   +1 more source

Atom-optically synthetic gauge fields for a noninteracting Bose gas

open access: yesLight: Science & Applications, 2022
A two-leg ladder with tunable gauge fields is achieved by one-dimensional synthetic momentum-state lattice of a noninteracting Bose gas.
Yuqing Li   +9 more
doaj   +1 more source

Effect of Solvents on the Fluorescent Spectroscopy of BODIPY-520 Derivative

open access: yesJournal of Spectroscopy, 2022
Photodynamic therapy (PDT) is a selective and minimally invasive technique for the treatment of tumors. It includes three components such as photosensitizer, light, and molecular oxygen.
Buthaina Kamel   +4 more
doaj   +1 more source

Testing universality of Feynman-Tan relation in interacting Bose gases using high-order Bragg spectra

open access: yesLight: Science & Applications, 2023
The Feynman-Tan relation, obtained by combining the Feynman energy relation with the Tan’s two-body contact, can explain the excitation spectra of strongly interacting 39K Bose-Einstein condensate (BEC).
Yunfei Wang   +7 more
doaj   +1 more source

Shock Waves in Laser-Induced Plasmas

open access: yesAtoms, 2019
The production of a plasma by a pulsed laser beam in solids, liquids or gas is often associated with the generation of a strong shock wave, which can be studied and interpreted in the framework of the theory of strong explosion.
Beatrice Campanella   +4 more
doaj   +1 more source

Hyperglycemia and cancer in human lung carcinoma by means of Raman spectroscopy and imaging

open access: yesScientific Reports, 2022
Raman spectroscopy and Raman imaging were used to identify the biochemical and structural features of human cancer lung cells (CCL-185) and the cancer cells supplemented with glucose and deuterated glucose at normal and hyperglycemia conditions. We found
M. Kopeć   +3 more
doaj   +1 more source

Second-harmonic generation of ZnO nanoparticles synthesized by laser ablation of solids in liquids [PDF]

open access: yes, 2018
We report the synthesis of small zinc oxide nanoparticles (ZnO NPs) based colloidal suspensions and the study of second-harmonic generation from aggregated ZnO NPs deposited on glass substrates.
Aguilar, G   +6 more
core   +1 more source

On the effects of using CO2 and F2 lasers to modify the wettability of a polymeric biomaterial. [PDF]

open access: yes, 2010
Enhancement of the surface properties of a material by means of laser radiation has been amply demonstrated previously. In this work a comparative study for the surface modification of nylon 6,6 has been conducted in order to vary the wettability ...
Arefi-Khonsari   +33 more
core   +1 more source

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