Results 151 to 160 of about 116,825 (204)
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The long range distributed fiber raman photon temperature sensor
Optoelectronics Letters, 2007A 31 km long range distributed optical fiber Raman photon temperature sensor (DOFRPTS) system have been developed based on temperature effect of the amplified spontaneous Raman scattering in fiber, and using fiber laser as a pumped source. The results show that temperature measuring uncertainty is ±2 °C, temperature resolution is 0.1 °C, measurement ...
Zai-xuan Zhang +8 more
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The short-range mechanism of surface enhanced raman scattering
Surface Science Letters, 1985Abstract In addition to the electromagnetic influences which increase the local field at the surface of suitably rough free-electron-like metals, molecule and site specific electronic resonances are also frequently operative. This leads to enhanced scattering beyond that caused by the electromagnetic mechanism alone. The electronic resonances involve
T.E. Furtak, D. Roy
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Quantifying the Short-Range Order in Amorphous Silicon by Raman Scattering
Analytical Chemistry, 2018Quantification of the short-range order in amorphous silicon has been formulized using Raman scattering by taking into account established frameworks for studying the spectral line-shape and size dependent Raman peak shift. A theoretical line-shape function has been proposed for representing the observed Raman scattering spectrum from amorphous-Si ...
Priyanka Yogi +7 more
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Raman Investigations of Biselenates. The Raman Spectra of RbHSeO4in the Range 20–300K
Spectroscopy Letters, 1982Abstract In 1977 we undertook investigations 1 of the Raman spectra of RbHSeO4 and NH4HSeO4, prior to the discovery of their ferroelectric nature by a group of workers in Poland.2,3 Our studies did not reveal some of the behavior reported by this group, and other studies4,5 have indicated phase transitions not observed by us or the Polish group.6–9 ...
Robert L. Carter +2 more
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Retardation assisted enhanced Raman scattering from silicon nanostripes in the visible range
Nanotechnology, 2012Patterned silicon on insulator structures representing evenly spaced parallel 15 nm-thick nanostripes exhibit an enhanced Raman scattering response when excited in the visible range in an oblique incidence backscattering configuration. The enhancement phenomenon in two structures having different stripe widths, 200 and 50 nm, is investigated at various
Ndong, Gérald +3 more
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Solid hydrogen Raman shifter for the mid-infrared range (44–8 μm)
Applied Optics, 2004We developed a pulsed, continuously tunable laboratory laser source for the mid-infrared spectral range of 4.4-8 microm, which is characterized by the spectral linewidth of 0.4 cm(-1). The device is based on the stimulated backward Raman scattering in solid para-hydrogen at T = 4 K.
Kirill E, Kuyanov +2 more
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Coherent anti-Stokes Raman scattering by droplets in the Mie size range
Optics Letters, 1982Results of coherent anti-Stokes Raman scattering from droplets in the Mie size range are presented. Scattering intensities are shown to reach values of 30 greater than an equivalent mass of material in bulk form.
J, Cooney, A, Gross
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Short range order in the network of the borophosphate glasses: Raman results
Journal of Non-Crystalline Solids, 1987This paper presents a Raman investigation of glasses of the system MX:M 2 O:B 2 O 3 :P 2 O 5 (M = Li, Ag; X = Cl, 1). For the phosphate glasses, we discuss in detail the relationship among glass composition, density of the different phosphate (PO 4 ) units, and Raman spectra.
Mauro Scagliotti +2 more
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Raman Spectrum of Methane in the Range 20–40oC
Journal of Applied Spectroscopy, 2017The influence of temperature in the range 20–40oC on the main vibrational-rotational Raman bands (ν1, ν2, ν3, 2ν2, and 2ν4) of methane was investigated. An increase of temperature caused the frequencies of the Q-branches to shift differently and the relative intensities of the 2ν2 and 2ν4 overtones that were in Fermi resonance with ν1 to decrease.
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Resonance Raman scattering in Ti2O3 in the range 1.8–2.7 eV
Solid State Communications, 1975Abstract Measurements of resonance Raman scattering from the A 1 g and E g modes of Ti 2 O 3 at room temperature were made in the energy range 1.8–2.7 eV. The results are interpreted in terms of a phonon modulation of the optical spectrum and related energy level structure.
S.H. Shin +3 more
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