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NIR Spectroscopy. Near infrared spectroscopy (NIRS) is always one of the most promising techniques for large-scale meat quality evaluation as it offers a number of important advantages over conventional quality evaluation methods such as rapid and frequent measurements, no sample preparation required, suitability for on-line use, and simultaneous determination of different attributes.
2021-3-14 · Coherent anti-Stokes Raman spectroscopy, also called Coherent anti-Stokes Raman scattering spectroscopy (CARS), is a form of spectroscopy used primarily in chemistry, physics and related fields. It is sensitive to the same vibrational signatures of molecules as seen in Raman spectroscopy, typically the nuclear vibrations of chemical bonds.Unlike Raman spectroscopy, CARS
2021-1-28 · Using the Kohn–Sham density functional theory, we numerically study the four-wave mixing response of a carbon atom model system exposed to a train of femtosecond two color ω–3ω random phase coherent X-ray pulses near the K-edge. The phase-sensitivity cancellation of the 5ω anti-Stokes component previously described in two- and three-level systems in the infrared and optical regions is
2021-3-13 · Transient spectroscopy as discussed above is a technique that involves two pulses. There are many more techniques that employ two or more pulses, such as: Photon echoes. Four-wave mixing (involves three laser pulses) The interpretation of experimental data from these techniques is usually much more complicated than in transient-absorption
Read the latest articles of Journal of Electron Spectroscopy and Related Phenomena at ScienceDirect, Elsevier’s leading platform of peer-reviewed scholarly literature Multicenter distorted-wave calculation for triple differential cross sections of tetrahydropyran and 1,4-dioxane molecules. Short-wavelength four wave mixing
2021-3-26 · Preprint Wave optics in Infrared Spectroscopy. Article The Bouguer-Beer-Lambert Law: Assuming ideal solution and that the volume does not change from mixing that should be
It is not possible to determine the contribution from each vibration because of the resulting mixed wave function. If the symmetry requirements are fulfilled and the energies of the two states are similar, mixing occurs, and the resulting modes can be described by a linear combination of the two interacting modes.
2021-3-15 · Comparison between low optical absorption models for pump-probe transient thermal lens spectroscopy: a theoretical and experimental study. Optical Fiber-Based Wave Mixing as a Convenient and Sensitive Laser Analytical Tool for Condensed-Phase Analytes. Applied Spectroscopy 1998, 52 (5)
2021-3-13 · Distributed measurement of forward stimulated Brillouin scattering (FSBS) attracted substantial attention for its ability to probe media surrounding optical fibers. Currently, all techniques extract the information from the FSBS-induced local energy transfer among distinct optical tones, this transfer being fundamentally sensitive to intensity perturbations imposed by nonlinear effects.