Substances contained in this document ( element systems and chemical formulae ) Selenium (Se): effective charge, polaron coupling, Raman cross section, trigonal SeSpringer Berlin HeidelbergNon-Tetrahedrally Bonded Elements and Binary Compounds I
Despite the high potential for multiplexing, the biological application of Raman spectroscopy is greatly limited by its small Raman cross-section, which is typically 108~1014 times smaller than that of fluorescent dyes31. To amplify the signal, our group has recently developed a simple strategy to...
Comparing the sodium salts of primary TCA cycle intermediates (Fig. 1A, B), we see the highest Raman peak intensities for fumarate, indicative of a larger Raman cross section and in line with DFT simulations. Fig. 1: Fumarate displays prominent Raman spectral features compared to other TCA ...
The cysteine shows a much lower efficiency than 4-NBT likely owing to a smaller molecular cross section assuming that both have a high affinity to Hya-Ag colloids via covalent binding. (n) The calibration curves of CV using Hya-Ag colloids (blue), citrate-Ag colloids (red) and citrate-Au...
due to the combined contributions of the high chemical activity of the semimetallic tellurides, strong interface dipole, and the “quasi-covalent bonding” in the R6G-WTe2 complex, which facilitated efficient fluorescence (FL) quenching and increased the Raman scattering cross-section of the dye mo...
The most important parameter characterizing Raman amplifiers is the Raman gain coefficientγR, which is related to the cross-section of spontaneous Raman scattering [7]. It describes how the Stokes power grows as pump power is transferred to it through SRS. On a more fundamental level, γR is...
In the cross polarization geometry (the polarization of incident light is perpendicular to that of scattered light), all of the cases have four-fold symmetry, but the intensity is significantly reduced when the JT plane is perpendicular to the substrate, i.e., ...
In Raman spectroscopy, inelastic scattering of photons from an atomor molecule in chemical entities is utilized to analyze the composition of solids, liquids and gases. However, the low cross-section limits its applications. The introduction of surface-enhancedRamanspectroscopy in 1974has attracteda lo...
Symbolically, it can be expressed by a formula Ei (k, T, N), where E stands for the energy, i is the band index, and k indicates the wave vector. Following this formalism we can say that the results shown in the bottom panel of Fig. 5 clearly demonstrate that the excitation energy...
The number of spectral points that provides adequate predictive ability for an analyte of interest is a function of the signal-to-noise ratio of the acquired spectra, the Raman scattering cross-section of the analyte and the spectral overlap factor between the analyte and the spectral interferents...