Results 21 to 30 of about 2,525,720 (184)
Recent advances in ultrafast optical parametric oscillator frequency combs [PDF]
, 2014 We discuss recent advances in the stabilization and application of femtosecond frequency combs based on optical parametric oscillators (OPOs) pumped by femtosecond lasers at 800 and 1060 nm.
Reid, Derryck T.; id_orcid +2 more
core +1 more source
Journal of Dairy Science, 2022 : Monitoring the ripening process by prevalent analytic methods is laborious, expensive, and time consuming. Our objective was to develop a rapid and simple method based on vibrational spectroscopic techniques to understand the biochemical changes ...
Hulya Yaman +3 more
doaj +1 more source
Mid-infrared near-field spectroscopy
Optics Express, 2009 We demonstrate continuous infrared spectra from 20 nm sample spots, by combining dispersive Fourier-transform infrared spectroscopy (FTIR) with scattering near-field microscopy (s-SNOM). With the "apertureless" tip of a standard AFM cantilever in one arm of a Michelson interferometer the spectra arise simultaneously in amplitude and phase.
Amarie, S., Ganz, T., Keilmann, F.
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Upconversion time-stretch infrared spectroscopy
Light: Science & Applications, 2023 We develop upconversion time-stretch infrared spectroscopy, which enables high-speed and high-resolution broadband mid-infrared spectroscopy with over 1000 spectral elements at a rate of more than 10 MSpectra s−1.
Kazuki Hashimoto +6 more
doaj +1 more source
Research Progress in the Application of Spectroscopic Technology in the Traceability of Food Origin
Shipin gongye ke-ji, 2023 The technology of food geographical origin traceability is essential for the country to effectively promote the implementation of food origin traceability and protect famous and unique products.
Wenyan LIU +4 more
doaj +1 more source
Química Nova, 2008 Considered the best substitute for diesel, biodiesel can be blended with diesel in any ratio, bringing lots of environmental, economic and social advantages.
Lílian Lefol Nani Guarieiro +3 more
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Mid infrared emission spectroscopy of carbon plasma [PDF]
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2017 Mid infrared time-resolved emission spectra were recorded from laser-induced carbon plasma. These spectra constitute the first study of carbon materials LIB spectroscopy in the mid infrared range. The carbon plasma was induced using a Q-switched Nd: YAG laser.
Laszlo, Nemes +3 more
openaire +2 more sources
Metasurface-enhanced mid-infrared spectroscopy in the liquid phase. [PDF]
Chem Sci, 2022 A novel surface-enhanced infrared absorption (SEIRA) spectroscopy method exploits the resonance of a dielectric metasurface to provide strong field enhancement at a microscale depth, making it suitable for analysis of dilute liquid samples.
Kharratian S +5 more
europepmc +3 more sources
Mid-infrared spectroscopy for entomological purposes: A review
Journal of Asia-Pacific Entomology, 2020 Mid-infrared spectroscopy (MIRS) is a well-established technique in the field of chemical analysis. Although it has been applied to problems in the entomological field for over 65 years, MIRS typically remains underutilised in this discipline. Potential applications of MIRS include profiling of cuticular hydrocarbons, taxonomic discrimination between ...
Johnson, Joel B, Naiker, Mani
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Searching water megamasers by using mid-infrared spectroscopy (I): Possible mid-infrared indicators [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Water megamasers at 22 GHz with a gas disc configuration in galaxies provide the most precise measurements of supermassive black hole masses, as well as independent constraints on the Hubble constant in the nearby universe. The existence of other maser types, such as jet or outflow masers, represents another tracer for AGN ...
Man I Lam +5 more
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