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Journal articles on the topic 'Raman shift'

Author: Grafiati

Published: 6 September 2023

Last updated: 25 July 2025

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1

Yang, XueXian, Yonghui Liu, Xin Juan Liu, Jin Zhang Peng, Heping Zhao, and Chang Qing Sun. "Composition- and Temperature-Resolved Raman Shift of Silicon." Applied Spectroscopy 72, no. 4 (2018): 598–603. http://dx.doi.org/10.1177/0003702817744218.

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We formulated the composition and temperature dependence of the Si and Si1– xGe x Raman shift from the perspectives of bond order–length–strength correlation and local bond average approach. It is verified that the Raman shift Δω varies in the form of Δω ∝ zE1/2/ d, with inclusion of bond length d and energy E changing with temperature and composition. Numerical reproduction of the thermally induced Si1– xGe x phonon softening indicates that bond thermal expansion and energy loss dictate the frequency redshift, which resulted in quantitative information on the bond energy and the reference fre

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2

Gao, Yukun, and PG Yin. "Synthesis of cubic CdSe nanocrystals and their spectral properties." Nanomaterials and Nanotechnology 7 (January 1, 2017): 184798041770174. http://dx.doi.org/10.1177/1847980417701747.

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The cadmium selenide nanocrystals are prepared by colloidal chemistry under mild conditions. X-ray diffraction and high-resolution transmission electron microscopy measurements indicate that as-prepared cadmium selenide nanocrystals are zinc blende cubic structure. We carry out an analysis of quantum size effect in the Raman spectra of cadmium selenide nanocrystals performed by utilizing the chemical bond theory of Raman peak shift developed recently. It is revealed that the shifts of Raman peaks in cadmium selenide nanocrystals result from the overlapping of the quantum effect shifts and surf

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3

Zhou, Minghao, and Rongying Dai. "Study on Characteristic Raman Shift Screening Method Based on MPA for Raman Spectrum of Mine Water Inrush Source." Scientific Programming 2022 (August 23, 2022): 1–8. http://dx.doi.org/10.1155/2022/5202265.

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In the process of mine water inrush disaster prevention, accurate and rapid identification of water inrush source type is of great significance to coal mine safety production. However, traditional hydrochemical methods have shortcomings such as time-consuming and complex detection. Therefore, a new idea of identifying mine water inrush source by Raman spectroscopy is proposed. Goaf water, roof sandstone fissure water, Ordovician limestone water, Taiyuan limestone water, and surface water as well as their mixed water samples are selected as research objects, and Raman spectral data of different

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4

Alenichev, M. K., and A. A. Yushina. "A wide-range Raman shift wavenumber measure based on a polymer material." Izmeritel`naya Tekhnika 74, no. 1 (2025): 77–82. https://doi.org/10.32446/0368-1025it.2025-1-77-82.

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The wave number of the Raman shift is one of the most important parameters in Raman spectroscopy. Since the accuracy of determining the wave number of the Raman shift strongly depends on the technical characteristics of the Raman spectrometers and the measurement conditions, physically and chemically stable reference materials that would be convenient for users are required to calibrate such devices on the wave number scale. One of the promising areas of development of such reference materials that meet these requirements are solid-state reference materials developed in our country and abroad.

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5

Fountain, Augustus W., Charles K. Mann, and Thomas J. Vickers. "Routine Wavenumber Calibration of an FT-Raman Spectrometer." Applied Spectroscopy 49, no. 7 (1995): 1048–53. http://dx.doi.org/10.1366/0003702953964886.

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A readily automated procedure for testing and calibrating the wavenumber shift scale of an FT-Raman spectrometer is described. The procedure uses atomic lines as wavenumber standards. An apodization procedure is used in accurately determining the line positions to a fraction of the sampling interval. A fiber-optic bundle conveniently couples the output from a hollow cathode lamp to the collection optics of the Raman accessory. Results are reported and compared for both thorium and neon atomic lines. Acetonitrile is suggested as a wavenumber shift standard, and peak shifts have been measured fo

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6

Izadshenas, Saeid, Piotr Masłowski, Tobias Herr, and Karolina Słowik. "Multiresonant metasurface for Raman spectroscopy beyond single molecule detection level." EPJ Applied Metamaterials 9 (2022): 11. http://dx.doi.org/10.1051/epjam/2022009.

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A metasurface in the metal-insulator-grating configuration is designed and optimised to support enhancement of coherent Raman signal of selected molecules orders of magnitude above the single-molecule detection threshold. The tunability is demonstrated by adjusting the structure to match selected Raman peaks of rhodamine, however, its spectral response is broad enough to cover a range of Raman shifts. Finally, the grating allows switching between distinct values of Raman shift with a single metasurface illuminated at different angles.

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7

Gyollai, Ildiko, Sándor Biri, Zoltán Juhász, et al. "Raman–Infrared Spectral Correlation of an Artificially Space-Weathered Carbonaceous Chondrite Meteorite." Minerals 14, no. 3 (2024): 288. http://dx.doi.org/10.3390/min14030288.

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Raman and infrared measurements of the same locations were conducted on a northwest African (NWA) 10580 CO3 meteorite sample, before and after three proton irradiations (1 keV ion energy using 1011, 1014, and 1017 ion/cm2 fluent values), to simulate space weathering effects. In the case of Raman spectroscopy, both FWHM and peak positions of the major olivine and pyroxene bands changed after the irradiation, and the minor bands disappeared. In the FTIR spectra, the minor bands of olivine and pyroxene also disappeared; meanwhile, major IR bands of pyroxene remained visible, demonstrating both po

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Anashkina, Elena A., Maria P. Marisova, Vitaly V. Dorofeev, and Alexey V. Andrianov. "Raman Lasing in a Tellurite Microsphere with Thermo-Optical on/off Switching by an Auxiliary Laser Diode." Micromachines 14, no. 9 (2023): 1796. http://dx.doi.org/10.3390/mi14091796.

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The generation of coherent light based on inelastic stimulated Raman scattering in photonic microresonators has been attracting great interest in recent years. Tellurite glasses are promising materials for such microdevices since they have large Raman gain and large Raman frequency shift. We experimentally obtained Raman lasing at a wavelength of 1.8 µm with a frequency shift of 27.5 THz from a 1.54 µm narrow-line pump in a 60 µm tellurite glass microsphere with a Q-factor of 2.5 × 107. We demonstrated experimentally a robust, simple, and cheap way of thermo-optically controlled on/off switchi

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9

Wang, Can, Bo Lin Cheng, S. Y. Wang, S. Y. Dai, and Zhao Hui Chen. "Raman Spectra Study on Multilayered Compositional Graded (Ba_0.8Sr_0.2)(Ti_1-xZr_x)O₃ Thin Films." Key Engineering Materials 280-283 (February 2007): 1909–12. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1909.

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Compositional graded thin films of (Ba0.8Sr0.2)(Ti1-xZrx)O3 (BSTZ) are grown on MgO by pulsed laser deposition technique with four BSTZ ceramic targets. Gradients of composition are achieved by artificially tailoring composition in multilayered thin films to form compositional graded layers (CGL). In each CGL four individual layers of BSTZ with x = 0.36, 0.18, 0.08 and 0 are grown^in series with equal thickness. Three kinds of CGL samples comprising one, two or four CGLs have been elaborated with the same total thickness by varying the thickness of each CGL. Raman spectra show existence of tet

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10

Amaechi, Ifeanyichukwu C., Andreas Ruediger, and Alain Pignolet. "Phonon confinement and particle size effect on the low-frequency Raman mode of aurivillius phase Bi₄Ti₃O₁₂ powders." RSC Advances 13, no. 8 (2023): 4917–23. http://dx.doi.org/10.1039/d2ra06297f.

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Both Raman shift, ω ∝ x−0.73, and linewidth, Γ ∝ x−0.38, exhibit a power law dependence on the particle size. The particle size-dependent lattice constant contributed to satisfactory explanation of the Raman shift.

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11

Piluso, Nicolò, Massimo Camarda, Ruggero Anzalone, et al. "Raman Stress Characterization of Hetero-Epitaxial 3C-SiC Free Standing Structures." Materials Science Forum 679-680 (March 2011): 141–44. http://dx.doi.org/10.4028/www.scientific.net/msf.679-680.141.

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Raman microscopy has been used to study the stress distribution on 3C-SiC/Si(100) micro-machined free standing structures. Linear scans along different structures reveal similar trends of the TO mode Raman Shift. We have found that, independently of the microstructure considered, the Raman frequency decreases close to the undercut. We compare our experimental measurements with FEM simulations finding that, close to the undercut, the stress tensor becomes non-diagonal, modifying the Raman shift to stress relation.

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12

Suda, Jun, and Petr Zverev. "Temperature Dependence of Raman Frequency Shift in SrWO4 Crystal Studied by Lattice Dynamical Calculations." Crystals 9, no. 4 (2019): 197. http://dx.doi.org/10.3390/cryst9040197.

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The frequency shift of the Raman modes in strontium tungstate (SrWO4) was investigated in the temperature range from 15 to 295 K. The experimental temperature dependence of the shift was analyzed using both the lattice dynamical calculations and the lattice perturbative approach. We found that the quartic anharmonic term of the first-order perturbation and the cubic term of the second-order perturbation, as well as the thermal expansion, contribute to the temperature shift of the highest-frequency Ag(ν1) mode. The values of the temperature sensitivity of the frequency shift of the Raman modes

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13

Shin, Y. J., W. J. Kim, H. Y. Kim, and W. Bahng. "Dislocation Analysis of 4H-/6H-SiC Single Crystals Using Micro-Raman Spectroscopy." Materials Science Forum 740-742 (January 2013): 481–84. http://dx.doi.org/10.4028/www.scientific.net/msf.740-742.481.

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Micro-Raman spectroscopy is an excellent non-destructive analysis method, which compensates for disadvantages of KOH method. Raman shift of A1(LO) and E1(TO) band at threading screw dislocation(TSD) were investigated in n-type on/off-axis 4H- and 6H-SiC single crystal wafers by Micro-Raman scattering at room temperature. The results showed that A1(LO) band were shifted toward higher frequency while the E1(TO) band were shifted toward lower frequency on the on-axis wafers. The shifts are caused by increasing electron concentration and lattice disorder near the dislocation core, respectively. In

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14

Yushina, Anna A., Mikhail K. Alenichev, Aram V. Saakian, and Alexander D. Levin. "The Raman Shift Wavenumber Measure and the Possibilities of its Application for Quantitative Analysis." Measurement Standards. Reference Materials 21, no. 1 (2025): 22–37. https://doi.org/10.20915/2077-1177-2025-21-1-22-37.

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Raman spectroscopy is mainly used for qualitative analysis, since the intensity of Raman lines is instrument dependent. At the same time, the high selectivity of Raman spectra stimulates interest in finding ways to use them for quantitative analysis as well, and the development of methods to effectively apply Raman spectroscopy for quantitative analysis is quite relevant.The aim of the study was to investigate the possibilities of using the measure developed at the All-Russian Scientific Research Institute for Optical and Physical Measurements and designed for calibration of Raman instruments

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15

Chertkova, Nadezda, Shigeru Yamashita, Eiji Ito, and Akira Shimojuku. "High-pressure synthesis and application of a 13C diamond pressure sensor for experiments in a hydrothermal diamond anvil cell." Mineralogical Magazine 78, no. 7 (2014): 1677–85. http://dx.doi.org/10.1180/minmag.2014.078.7.11.

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AbstractPolycrystalline, cubic 13C diamond was synthesized from amorphous carbon in the Kawai-type multianvil apparatus at 21 GPa and at a temperature greater than 2350ºC. The polycrystalline diamond was homogeneous with a small grain size (10–20 μm) and a sharp Raman peak, and thereby was suitable as a pressure sensor for the experiments in a hydrothermal diamond anvil cell. Pressure- and temperature-dependence of the Raman shift of the synthesized 13C diamond was investigated in situ at simultaneous high pressures and high temperatures in the hydrothermal diamond anvil cell, using the ruby f

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16

Kai, Akira, Masao Takegoshi, and Tetsuo Shoji. "In Situ Micro Raman Spectroscopy for Characterization of Oxide Film Formed on the New Surface and for Measurements of the Stress of Oxide Film Formed on 304L Stainless Steel." Key Engineering Materials 261-263 (April 2004): 913–18. http://dx.doi.org/10.4028/www.scientific.net/kem.261-263.913.

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Environmentally assisted cracking (EAC) consists of two distinct events viz., i) crack initiation and ii) crack propagation. On a smooth surface, the EAC initiates by the rupture or by the degradation of the surface film due to the combined action of stress and an electrochemical reaction of the materials with the environment. The mechanical properties of the surface oxide films are also important considerations when determining the susceptibility to EAC. In this research, Micro Raman Spectroscopy(MRS) was applied for in-situ oxides characterization and for in-situ measurements of the stress i

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17

Radtke, Mariusz, and Christian Hess. "Operando Raman Shift Replaces Current in Electrochemical Analysis of Li-ion Batteries: A Comparative Study." Molecules 26, no. 15 (2021): 4667. http://dx.doi.org/10.3390/molecules26154667.

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Li-rich and catalytically active γ-LixV2O5 (x = 1.48) was investigated as a cathode for its heterogeneous charge transfer kinetics. Using a specially designed two-electrode system lithium half cell, Butler–Volmer analysis was performed, and Raman spectra were acquired in 18 mV intervals. A direct correlation was observed between the Raman shift of the active modes Ag,Bg, Au, and Bu, and the development of the Faraday current at the working electrode. The Raman intensity and the Raman shift were implemented to replace the current in a Tafel plot used for the analysis of Butler–Volmer kinetics.

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18

Cetinel, A., N. Artunç, G. Sahin, and E. Tarhan. "Influence of applied current density on the nanostructural and light emitting properties of n-type porous silicon." International Journal of Modern Physics B 29, no. 15 (2015): 1550093. http://dx.doi.org/10.1142/s0217979215500939.

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Effects of current density on nanostructure and light emitting properties of porous silicon (PS) samples were investigated by field emission scanning electron microscope (FE-SEM), gravimetric method, Raman and photoluminescence (PL) spectroscopy. FE-SEM images have shown that below 60 mA/cm 2, macropore and mesopore arrays, exhibiting rough morphology, are formed together, whose pore diameter, pore depth and porosity are about 265–760 nm, 58–63 μ m and 44–61%, respectively. However, PS samples prepared above 60 mA/cm 2 display smooth and straight macropore arrays, with pore diameter ranging fr

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19

Sun, Xiu Ping, and Zai Chao Yu. "Study on Raman Spectra of Zinc Gluconate under Effect of Different Solvent." Key Engineering Materials 552 (May 2013): 111–14. http://dx.doi.org/10.4028/www.scientific.net/kem.552.111.

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Raman spectrum is a kind of characteristic spectrum. The information of molecular vibration and rotation can be obtained by studying Raman spectrum. Raman spectrum will be changed because of molecular interaction under effect of different solvent. We selected zinc gluconate as the object of research. Zinc gluconate is dissolved respectively in ethyl chloride, benzene, ring of ethane，chloroform, acetic acid, ethylene oxide, n-propanol, n-butanol solution, and Raman spectra were tested. The change of molecular internal structure and the interaction of molecular functional groups are studied by m

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20

Sokalski, Peter, Zherui Han, Gabriella Coloyan Fleming, et al. "Effects of hot phonons and thermal stress in micro-Raman spectra of molybdenum disulfide." Applied Physics Letters 121, no. 18 (2022): 182202. http://dx.doi.org/10.1063/5.0122945.

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Micro-Raman spectroscopy has become an important tool in probing thermophysical properties in functional materials. Localized heating by the focused Raman excitation laser beam can produce both stress and local nonequilibrium phonons in the material. Here, we investigate the effects of hot optical phonons in the Raman spectra of molybdenum disulfide and distinguish them from those caused by thermally induced compressive stress, which causes a Raman frequency blue shift. We use a thermomechanical analysis to correct for this stress effect in the equivalent lattice temperature extracted from the

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21

Endo, Masanori, Haruki Uchiyama, Yutaka Ohno, and Jun Hirotani. "Temperature dependence of Raman shift in defective single-walled carbon nanotubes." Applied Physics Express 15, no. 2 (2022): 025001. http://dx.doi.org/10.35848/1882-0786/ac4678.

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Abstract Raman scatterings of both pristine and defective single-walled carbon nanotubes were measured. Defects on carbon nanotubes (CNTs) were induced by UV/O3 treatment, and the correlation between the temperature dependence of the Raman shift of the G-band and the crystallinity of CNTs was investigated. In the temperature range of 250–600 K, a gradual negative change in the slope was observed; the linear shift of the Raman G-band frequency with respect to temperature increased as the crystallinity deteriorated. This phenomenon is attributed to the increase in the fourth-order phonon–phonon

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22

Suss, Nicole, Anna Ritscher, Martin Lerch, and Ilias Efthimiopoulos. "Anharmonic Effects in Ordered Kesterite-Type Cu2ZnSnS4." Solids 2, no. 4 (2021): 385–94. http://dx.doi.org/10.3390/solids2040024.

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We performed an in-depth investigation and analysis of the effect of temperature on the Raman-active A-modes of bulk kesterite-type Cu2ZnSnS4 within the 300–460 K temperature range. We acquired the individual contributions to each Raman mode, namely, the thermal expansion and anharmonic interactions terms responsible for the Raman shift and broadening with temperature. Our results indicate that the Raman shift with temperature is dominated by the thermal expansion term, whereas the broadening is mainly governed by three-phonon damping processes in this material. Considering relevant results fr

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23

Sahu, Sumit Ranjan, Mayanglambam Manolata Devi, Puspal Mukherjee, Pratik Sen, and Krishanu Biswas. "Optical Property Characterization of Novel Graphene-X (X=Ag, Au and Cu) Nanoparticle Hybrids." Journal of Nanomaterials 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/232409.

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The present investigation reports new results on optical properties of graphene-metal nanocomposites. These composites were prepared by a solution-based chemical approach. Graphene has been prepared by thermal reduction of graphene oxide (GO) at 90°C by hydrazine hydrate in an ammoniacal medium. This ammoniacal solution acts as a solvent as well as a basic medium where agglomeration of graphene can be prevented. This graphene solution has further been used for functionalization with Ag, Au, and Cu nanoparticles (NPs). The samples were characterized by X-ray diffraction (XRD), Raman spectroscop

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24

Терещенко, Д. П., С. Н. Сметанин, А. Г. Папашвили та ін. "Обогащение спектра многоволновой пикосекундной генерации синхронно-накачиваемого ВКР-лазера на кристалле Sr(MoO_4)-=SUB=-0.8-=/SUB=-(WO_4)-=SUB=-0.2-=/SUB=-". Журнал технической физики 93, № 4 (2023): 488. http://dx.doi.org/10.21883/jtf.2023.04.55036.270-22.

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For the first time to our knowledge, a single-phase solid solution Sr(MoO4)0.8(WO4)0.2 was used as an active medium of a Raman laser. Using the high-intensity synchronous picosecond pumping satisfying the condition of phase capture of the parametric Raman interaction on the second vibrational mode made it possible to oscillate six components of Raman radiation with a combined frequency shift on the first (888 cm–1) and second (327 cm–1) vibrational modes in the wavelength range of 1194-1396 nm. Oscillation efficiency of the multiwavelength Raman laser radiation was as high as 10%. By detuning

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25

Yokogawa, Ryo, Sho Sugawa, Ichiro Yonenaga, Yasutomo Arai, and Atsushi Ogura. "Determination of Ge-fraction-shift coefficients for Raman spectroscopy in all vibration modes investigated by single-crystalline bulk SiGe and its application to strain evaluation in SiGe film grown on substrate." Japanese Journal of Applied Physics 63, no. 3 (2024): 035503. http://dx.doi.org/10.35848/1347-4065/ad29db.

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Abstract We reported the strain-free Raman shift (ω 0) for all vibration modes (Ge–Ge, Si–Ge, and Si–Si) over the entire Ge fraction range using silicon–germanium (SiGe) single-crystals which were strain-free without boundaries and buffer/substrate layers. The determined Ge-fraction-shift coefficients varied with the Ge fraction as linear for the Si–Si and Ge–Ge vibration modes and as nonlinear for the Si–Ge mode, respectively. The Raman shifts for all vibration mode over the entire Ge fraction range were shifted to the higher wavenumber side than previous studies, implying that the strain eff

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26

Yulianto, Edy, Marsetiayu Ningsih, Wahyu Bahari, Ahmad Musthofa, Galuh Prihantoro, and Fifit Astuti. "Raman Spectroscopy for Non-Destructive Detection of Pesticide on Guava Peel." Jurnal Penelitian Pendidikan IPA 9, no. 4 (2023): 2025–29. http://dx.doi.org/10.29303/jppipa.v9i4.3202.

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Pesticides are one of the substances that are widely used to protect plants from pests and plant diseases, and their use must be controlled for the public health. Currently, the pesticide contamination is determined by chromatographic, but this technique is destructive and not easy to implement. Therefore, this research is proposed to overcome these problems. Raman scattering technique as a non-destructive testing technique and easy to implement is used in this research. This technique utilizes Raman scattering resulting from laser excitation in a sample. Pesticide detection was carried out by

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27

Li, H., X. W. He, H. J. Xiao, H. N. Du, J. Wang, and H. X. Zhang. "Size-dependent Raman shift of semiconductor nanomaterials determined using bond number and strength." Phys. Chem. Chem. Phys. 19, no. 41 (2017): 28056–62. http://dx.doi.org/10.1039/c7cp05495e.

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28

Zerda, T. W., X. Song, and J. Jonas. "Raman Study of Intermolecular Interactions in Supercritical Solutions of Naphthalene in CO2." Applied Spectroscopy 40, no. 8 (1986): 1194–99. http://dx.doi.org/10.1366/0003702864507657.

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The high-pressure Raman spectra of the v1 and 2 v2 Fermi doublet of CO2 and the C-H stretching, C-H bending and C-C-C breathing modes of naphthalene have been studied at pressures varying up to 2000 bar and temperatures between 60 and 90°C. The naphthalene bands show a blue frequency shift with increasing density, whereas a red shift for the Fermi resonance free stretching mode of CO2 is observed with increasing density. The blue shift is explained in terms of repulsive interactions probed by the naphthalene vibrations, while the red shift is related to the attractive forces dominating in the

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29

Tereshchenko D. P., Smetanin S. N., Papashvili A. G., et al. "Spectrum multiplexing of multiwavelength picosecond oscillation of synchronously pumped Raman laser based on a Sr(MoO_4)-=SUB=-0.8-=/SUB=-(WO_4)-=SUB=-0.2-=/SUB=- crystal." Technical Physics 68, no. 4 (2023): 455. http://dx.doi.org/10.21883/tp.2023.04.55936.270-22.

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For the first time to our knowledge, a single-phase solid solution Sr(MoO_4)0.8(WO_4)0.2 was used as an active medium of a Raman laser. Using the high-intensity synchronous picosecond pumping satisfying the condition of phase capture of the parametric Raman interaction on the second vibrational mode made it possible to oscillate six components of Raman radiation with a combined frequency shift on the first (888 cm-1) and second (327 cm-1) vibrational modes in the wavelength range of 1194-1396 nm. Oscillation efficiency of the multiwavelength Raman laser radiation was as high as 10%. By detunin

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30

Hamad, W. Y., and S. Eichhorn. "Deformation Micromechanics of Regenerated Cellulose Fibers Using Raman Spectroscopy." Journal of Engineering Materials and Technology 119, no. 3 (1997): 309–13. http://dx.doi.org/10.1115/1.2812262.

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It is demonstrated that Raman spectroscopy can be used to study the molecular deformation of TENCELR fibers. It is shown that the peak positions of the 895 cm−1 and 1095 cm−1 Raman bands shift to lower frequency upon the application of tensile stress or strain owing to the macroscopic deformation leading to direct stretching of the cellulose chains. Significant frequency shifts of 1.98 cm−1 and 3.26 cm−1 are obtained for the two Raman-sensitive peak positions, respectively, using the 632.8 nm laser radiation. It is found that the change in position of the Raman band is more closely related to

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31

Tardieu, A., F. Cansell, and J. P. Petitet. "Comparison of the Raman pressure shift and the Raman temperature shift of benzene and diamond with the ruby soale." High Pressure Research 5, no. 1-6 (1990): 779–81. http://dx.doi.org/10.1080/08957959008246256.

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Kim, Jung Geun, and Jin Yu. "A study on the residual stress measurement methods on chemical vapor deposition diamond films." Journal of Materials Research 13, no. 11 (1998): 3027–33. http://dx.doi.org/10.1557/jmr.1998.0414.

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Diamond films were deposited on the p-type Si substrate with the hot filament chemical vapor deposition (HFCVD). Residual stresses in the films were measured in air by the laser curvature, the x-ray diffraction (XRD) dϕψ − sin2ψ, and the Raman peak shift methods. All of the measuring methods showed similar behaviors of residual stress that changed from a compressive to a tensile stress with increasing the film thickness. However, values of residual stresses obtained through the Raman and XRD methods were 3–4 times higher than those of the curvature method. These discrepancies involved the sett

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33

Puppels, G. J., M. Grond, and J. Greve. "Direct Imaging Raman Microscope Based on Tunable Wavelength Excitation and Narrow-Band Emission Detection." Applied Spectroscopy 47, no. 8 (1993): 1256–67. http://dx.doi.org/10.1366/0003702934068017.

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A new type of imaging Raman microscope is described. First the advantages and disadvantages of the two possible approaches to Raman microscopy based on signal detection by means of a charge-coupled-device camera (i.e., direct imaging and image reconstruction) are discussed. Arguments are given to show that in most cases direct imaging is to be preferred over image reconstruction, because it provides the desired information in less time. In the direct imaging Raman microscope presented in this communication, detection of scattered light occurs in a narrow interval around a fixed wavelength. Sel

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Garasevych, S., M. Iakhnenko, O. Slobodyanyuk, and I. Vaskivskyi. "Abnormal shifts in Raman spectra of deuterated cytidine and 6-azacytidine." Spectroscopy 24, no. 3-4 (2010): 191–95. http://dx.doi.org/10.1155/2010/107694.

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It was revealed that some peaks in Raman spectra of cytidine, 6-azacytidine (6-azaC), and cytosine dissolved in D2O are shifted to high frequencies in respect to their positions in spectra of H2O solution. Such “blue shifts” occur due to deuteration of the nucleoside molecule itself but not due to effect of deuterated solvent. This conclusion is deduced from observation of blue (abnormal) shift in Raman spectra of cytidine and 6-azaC microcrystals recrystallized from D2O solution. Both normal and abnormal shifts close to the experimentally observed were obtained in the calculated spectra of 6-

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35

Frank, Milan, Sergei Smetanin, Michal Jelínek, et al. "Stimulated Raman Scattering in Alkali-Earth Tungstate and Molybdate Crystals at Both Stretching and Bending Raman Modes under Synchronous Picosecond Pumping with Multiple Pulse Shortening Down to 1 ps." Crystals 9, no. 3 (2019): 167. http://dx.doi.org/10.3390/cryst9030167.

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Comparative investigation of characteristics of spontaneous and stimulated Raman scattering (SRS) in different alkali-earth tungstate and molybdate crystals at both high and low frequency anionic group vibrations is presented. It has been found that, among these crystals, the SrMoO4 and SrWO4 crystals are the most perspective for SRS generation on both stretching and bending modes of internal anionic group vibrations with the strongest SRS pulse shortening under synchronous laser pumping because of not only highly intense stretching mode Raman line for efficient primary extra cavity long-shift

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Chen, Cheng, Xiang Ping Shu, Hua Yang Sun, et al. "Temperature Dependence of Raman Scattering in M-Plane GaN with Varying III/V Ratios." Advanced Materials Research 602-604 (December 2012): 1453–56. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.1453.

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The temperature dependence Raman scattering from m-plane GaN thin films grown on m-plane sapphire substrate by Molecular Beam Epitaxy (MBE) has been investigated. Three pieces of m-plane GaN films grown with different Ⅲ/Ⅴ ratios were studied by confocal micro-Raman spectrometer from -180 °C to 240 °C. Raman shift and the full width at half maximum (FWHM) were fitted by lorentzian line shape, which reveal the quality and compressive stress of sample. It’s obvious that the Raman shift and FWHM exhibit a quadratic dependence on temperature, and that the redshift of Raman peak position with increa

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Shu, Xiang Ping, Cheng Chen, Yi Ting He, Zhi Ren Qiu, Dong Sing Wuu, and Zhe Chuan Feng. "Optical Probe in MgZnO Alloys with Varied Mg Ratios by Metalorganic Chemical Vapor Deposition." Advanced Materials Research 746 (August 2013): 406–10. http://dx.doi.org/10.4028/www.scientific.net/amr.746.406.

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We present a study on five MgxZn1-xO samples with varied x (x = 0, 0.01, 0.06, 0.10 and 0.14), grown on sapphire substrate by Metalorganic Chemical Vapor Deposition (MOCVD). Combined photoluminescence (PL) and Raman scattering studies were carried out over a temperature range of 80K-470K, under the excitation of UV 325 nm. Temperature dependence of the PL for MgZnO with x = 0, 0.01 and 0.06 are shown. The resonance Raman longitudinal optical (LO) multiple modes are exhibited for MgZnO with x = 0.06, 0.10 and 0.14 over all temperature range. Raman shifts exhibit a quadratic dependence on temper

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dos Reis, Jhon Rewllyson Torres, Fabio Furtado Leite, Keshav Sharma, et al. "Raman Spectroscopy on Free-Base Meso-tetra(4-pyridyl) Porphyrin under Conditions of Low Temperature and High Hydrostatic Pressure." Molecules 29, no. 10 (2024): 2362. http://dx.doi.org/10.3390/molecules29102362.

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We present a Raman spectroscopy study of the vibrational properties of free-base meso-tetra(4-pyridyl) porphyrin polycrystals under various temperature and hydrostatic pressure conditions. The combination of experimental results and Density Functional Theory (DFT) calculations allows us to assign most of the observed Raman bands. The modifications in the Raman spectra when excited with 488 nm and 532 nm laser lights indicate that a resonance effect in the Qy band is taking place. The pressure-dependent results show that the resonance conditions change with increasing pressure, probably due to

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Subramaniam, S., M. J. Lance, C. J. Rawn, B. C. Chakoumakos, and A. J. Rondinone. "Raman spectroscopic studies on structure I and structure IItrimethylene oxide hydrate." Canadian Journal of Physics 83, no. 9 (2005): 941–49. http://dx.doi.org/10.1139/p05-040.

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Raman spectra were collected from structure I (sI) and structure II (sII) trimethylene oxide (TMO) hydrates at various temperatures and used to assign the vibrational modes, investigate the ordering of TMO molecules inside the cage structure, and to determine possible interactions between the guest and the host lattice. Only Raman spectra from sI hydrate could be analyzed since the low concentration of TMO prevented sII peaks from being resolved. Comparison of the Raman spectra of liquid, solid, and enclathrated TMO (sI) showed Raman shifts to higher wave numbers for the enclathrated TMO; main

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Aaron Falk, R., and Tram Pham. "Raman Temperature Measurements." EDFA Technical Articles 11, no. 4 (2009): 6–12. http://dx.doi.org/10.31399/asm.edfa.2009-4.p006.

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Abstract Virtually all semiconductor materials exhibit Raman scattering which results in a frequency shift in photon energy. In this article, the authors explain how they harness this mechanism to measure the temperature of submicron structures and thereby produce high-resolution temperature maps. They review the basic theory of Raman scattering and present application examples involving high-bandgap materials as well as silicon devices.

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Fountain, Augustus W., Thomas J. Vickers, and Charles K. Mann. "Factors That Affect the Accuracy of Raman Shift Measurements on Multichannel Spectrometers." Applied Spectroscopy 52, no. 3 (1998): 462–68. http://dx.doi.org/10.1366/0003702981943699.

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Raman shift measurements have been made on cyclohexane, by using linear interpolation between bracketing neon line positions to establish Raman band wavelengths. Factors that affect the precision of these measurements have been examined in detail. These include change of slit width, grating line spacing, neon line intensity, distance of separation of neon lines, and effects of small grating movements. All these have some effect, but the last factor is particularly important. Techniques that give standard deviations of 0.03 cm−1 when measurements are made without moving the grating are degraded

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Chrobak, Dariusz, Mateusz Dulski, Grzegorz Ziółkowski, and Artur Chrobak. "Effect of the Indentation Load on the Raman Spectra of the InP Crystal." Materials 15, no. 15 (2022): 5098. http://dx.doi.org/10.3390/ma15155098.

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Nanoindentations and the Raman spectroscopy measurements were carried out on the (001) surface of undoped and S-doped InP crystal. The samples were indented with the maximum load ranging from 15 mN to 100 mN. The phase transition B3→B1 was not confirmed by spectroscopic experiments, indicating a plastic deformation mechanism governed by dislocations activity. Increasing the maximum indentation load shifts and the longitudinal and transverse optical Raman bands to lower frequencies reveals a reduction in the elastic energy stored in the plastic zone right below the indentation imprint. Mechanic

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Smith, David R., Jeffrey J. Field, David G. Winters, et al. "Phase noise limited frequency shift impulsive Raman spectroscopy." APL Photonics 6, no. 2 (2021): 026107. http://dx.doi.org/10.1063/5.0038624.

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Xue, Xiaobo, Corey Janisch, Yizhu Chen, Zhiwen Liu, and Jingbiao Chen. "Low-frequency shift Raman spectroscopy using atomic filters." Optics Letters 41, no. 22 (2016): 5397. http://dx.doi.org/10.1364/ol.41.005397.

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Vickers, Thomas J., and Charles K. Mann. "Raman Shift Calibration of a Compact Multichannel Spectrometer." Applied Spectroscopy 53, no. 12 (1999): 1617–22. http://dx.doi.org/10.1366/0003702991946082.

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Guo, Z. X., J. W. Ding, Y. Xiao, and D. Y. Xing. "Raman frequency shift in oxygen-functionalized carbon nanotubes." Nanotechnology 18, no. 46 (2007): 465706. http://dx.doi.org/10.1088/0957-4484/18/46/465706.

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Salamon, D., P. Abbamonte, Ran Liu, et al. "Large-shift Raman scattering features in superconductingYBa2Cu3O6+x." Physical Review B 53, no. 2 (1996): 886–91. http://dx.doi.org/10.1103/physrevb.53.886.

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Chen, X. H., T. Takenobu, T. Muro, H. Fudo, and Y. Iwasa. "Anomalous Raman shift in the ternary fullerides witht1gstates." Physical Review B 60, no. 17 (1999): 12462–66. http://dx.doi.org/10.1103/physrevb.60.12462.

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Al Mutoki, Sabah Mohammed Mlkat, Baydaa Abul Hassan Khalaf Al Ghzawi, Samir M. Abdul Amohsin, and Emad Abbas Jaffar Al-Mulla. "Raman shift of silicon rubber-nano titania PMNC." Epitoanyag - Journal of Silicate Based and Composite Materials 69, no. 1 (2017): 20–23. http://dx.doi.org/10.14382/epitoanyag-jsbcm.2017.4.

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Bauer, Michael, Alexander M. Gigler, Andreas J. Huber, Rainer Hillenbrand, and Robert W. Stark. "Temperature-depending Raman line-shift of silicon carbide." Journal of Raman Spectroscopy 40, no. 12 (2009): 1867–74. http://dx.doi.org/10.1002/jrs.2334.

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