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Tunable Laser Systems new experiments became possible; however, applications of lasers to chemical studies were limited to cases in which there was a coincidence between the absorption spectra and laser output. The availability of continuously tunable lasers has had an immediate impact on chemical applications because i沉着 发表于 2025-3-25 15:23:20
Nonlinear Opticskes Raman scattering), CSRS (coherent Stokes Raman scattering), Raman gain spectroscopy (or the related stimulated Raman scattering), and Raman loss spectroscopy (or inverse Raman scattering). Although these names may sound familiar, the effects themselves are shrouded in complex mathematics. This pEstimable 发表于 2025-3-25 17:35:59
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Potential Analytical Aspects of Laser Multiphoton Ionization Mass Spectrometryr mass spectrometer” (LAMS), whose essential new features consist of a pulsed, tunable-dye-laser ionization source and a gated-detection system for the mass-separated ions. Multiple photon ionization (MPI) spectra of isolated molecules are obtained via irradiation (by means of the pulsed, tunable la开花期女 发表于 2025-3-26 03:34:36
Analytical Aspects of Thermal Lensing Spectroscopys spectrometers, which quickly evolved into systems specifically designed for the analytical laboratory, only a few “packaged” laser-based systems have been successful. (Laser Raman spectroscopy and low-angle laser light scattering for particle size determination come to mind as two examples of succ碎石头 发表于 2025-3-26 04:30:18
Laser-Excited Atomic Fluorescence Spectrometry During the 1960s, the laser was developed as a light source and AFS as a spectrometric technique. In 1971, with the advent of commercially available tunable dye lasers, laser-excited atomic fluorescence spectrometry (LEAFS) had its beginning as an analytical method (.). Researchers had been lookingMalleable 发表于 2025-3-26 10:21:27
Laser-Excited Fluorescence Spectroscopypers. It is not meant to be complete or rigorous; a much more detailed discussion is available elsewhere (.). The laser has several specific qualities that can be particularly useful for exciting fluorescence—its high spectral powers can potentially provide low detection limits while its narrow line记成蚂蚁 发表于 2025-3-26 15:18:49
Laser-Excited Matrix-Isolation Molecular Fluorescence Spectrometryly it in such a way as to acquire reliable quantitative results for individual compounds in complex samples, unless extensive sample fractionation is included in the overall analytical scheme. Moreover, molecular fluorimetry has received little use as a qualitative or “fingerprinting” procedure, inconception 发表于 2025-3-26 19:29:46
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