Academic literature on the topic 'Ultrafast Raman Loss Spectroscopic Studies'

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Journal articles on the topic "Ultrafast Raman Loss Spectroscopic Studies"

1

Kayal, Surajit, Khokan Roy, and Siva Umapathy. "Femtosecond coherent nuclear dynamics of excited tetraphenylethylene: Ultrafast transient absorption and ultrafast Raman loss spectroscopic studies." Journal of Chemical Physics 148, no. 2 (2018): 024301. http://dx.doi.org/10.1063/1.5008726.

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Kayal, Surajit, Khokan Roy, Y. Adithya Lakshmanna, and Siva Umapathy. "Probing the effect of solvation on photoexcited 2-(2′-hydroxyphenyl)benzothiazole via ultrafast Raman loss spectroscopic studies." Journal of Chemical Physics 149, no. 4 (2018): 044310. http://dx.doi.org/10.1063/1.5028274.

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Katturi, Naga Krishnakanth, Sarang Dev G, Nagarjuna Kommu, Gopala Krishna Podagatlapalli, and Venugopal Rao Soma. "Ultrafast Coherent Anti-Stokes Raman spectroscopic studies of nitro/nitrogen rich aryl-tetrazole derivatives." Chemical Physics Letters 756 (October 2020): 137843. http://dx.doi.org/10.1016/j.cplett.2020.137843.

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4

Kipkemboi, Pius K., and Allan J. Easteal. "Vibrational spectroscopic studies of aqueous solutions of tert-butyl alcohol and tert-butylamine." Canadian Journal of Chemistry 80, no. 7 (2002): 789–95. http://dx.doi.org/10.1139/v02-102.

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Raman and FT-IR absorption spectra of aqueous tert-butyl alcohol (t-BuOH) and tert-butylamine (t-BuNH2) in the region of the O–H and NH2 stretching and bending modes have been measured as a function of organic co-solvent concentration in the whole co-solvent mole fraction region. The major observed changes of the aqueous binary solution spectra compared with the solvent spectra are a loss or gain of band intensity. In particular, the observed changes in intensities and linewidths of some bands were significantly more pronounced at low concentrations of organic co-solvents in water, where t-BuO
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5

Sokaras, Dimosthenis, Tsu-Chien Weng, Dennis Nordlund, and Uwe Bergmann. "High Energy Resolution X-ray Spectroscopy at SSRL and LCLS: Instruments and Applications." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C223. http://dx.doi.org/10.1107/s2053273314097769.

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High-resolution hard x-ray spectroscopies (XES, HERFD, RIXS, XRS) are now well-established characterization tools for providing insights of material's electronic and geometric structure. The high brilliance synchrotron radiation beamlines have made feasible the routine study of the electronic structure and ligand environment of metal coordination compounds and active centers in metalloproteins, electrochemical process under in-situ conditions, as well as studies on catalytic systems under ambient conditions. Moreover, the recent availability of Linac Coherent Light Source (LCLS), provides some
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6

Isabelle, M., N. Stone, H. Barr, M. Vipond, N. Shepherd, and K. Rogers. "Lymph node pathology using optical spectroscopy in cancer diagnostics." Spectroscopy 22, no. 2-3 (2008): 97–104. http://dx.doi.org/10.1155/2008/871940.

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Raman and infrared spectroscopy are optical spectroscopic techniques that use light scattering (Raman) and light absorption (infrared) to probe the vibrational energy levels of molecules in tissue samples. Using these techniques, one can gain an insight into the biochemical composition of cells and tissues by looking at the spectra produced and comparing them with spectra obtained from standards such as proteins, nucleic acids, lipids and carbohydrates. As a result of optical spectroscopy being able to measure these biochemical changes, diagnosis of cancer could take place faster than current
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7

Towrie, Michael, David C. Grills, Joanne Dyer, et al. "Development of a Broadband Picosecond Infrared Spectrometer and its Incorporation into an Existing Ultrafast Time-Resolved Resonance Raman, UV/Visible, and Fluorescence Spectroscopic Apparatus." Applied Spectroscopy 57, no. 4 (2003): 367–80. http://dx.doi.org/10.1366/00037020360625899.

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We have constructed a broadband ultrafast time-resolved infrared (TRIR) spectrometer and incorporated it into our existing time-resolved spectroscopy apparatus, thus creating a single instrument capable of performing the complementary techniques of femto-/picosecond time-resolved resonance Raman (TR3), fluorescence, and UV/visible/infrared transient absorption spectroscopy. The TRIR spectrometer employs broadband (150 fs, ∼150 cm−1 FWHM) mid-infrared probe and reference pulses (generated by difference frequency mixing of near-infrared pulses in type I AgGaS2), which are dispersed over two 64-e
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8

Ho, Junming, Elizabeth Kish, Dalvin D. Méndez-Hernández, et al. "Triplet–triplet energy transfer in artificial and natural photosynthetic antennas." Proceedings of the National Academy of Sciences 114, no. 28 (2017): E5513—E5521. http://dx.doi.org/10.1073/pnas.1614857114.

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In photosynthetic organisms, protection against photooxidative stress due to singlet oxygen is provided by carotenoid molecules, which quench chlorophyll triplet species before they can sensitize singlet oxygen formation. In anoxygenic photosynthetic organisms, in which exposure to oxygen is low, chlorophyll-to-carotenoid triplet–triplet energy transfer (T-TET) is slow, in the tens of nanoseconds range, whereas it is ultrafast in the oxygen-rich chloroplasts of oxygen-evolving photosynthetic organisms. To better understand the structural features and resulting electronic coupling that leads to
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9

Shetty, Karthika, Jayadev, Kalyan Raj, and H. C. Ananda Murthy. "Evaluation of Electrochemical and Anticorrosion Properties of Polyaniline-Fly Ash Nanocomposite." International Journal of Corrosion 2021 (December 20, 2021): 1–10. http://dx.doi.org/10.1155/2021/1547384.

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In India, the thermal station generates approximately 6.9 × 10 7 tons of fly ash (FA) as a waste by-product. As part of this work, little attempt was made to produce useful materials from waste material. In our current research, polyaniline- (PANI-) fly ash (FA) nanocomposite (PFNC) was synthesized using an in situ polymerization method. The synthesized composites were characterized by employing advanced analytical, microscopic, and spectroscopic tools. The results of the X-ray diffraction (XRD) analysis confirm the effective reinforcement of FA into PANI in PFNC. The presence of functional gr
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10

Al-Hajji, Latifa A., Muhammad A. Hasan, and Mohamed I. Zaki. "Kinetic and characterization studies of the formation of barium monomolybdate in equimolar powder mixture of BaCO3 and MoO3." Journal of Materials Research 18, no. 10 (2003): 2339–49. http://dx.doi.org/10.1557/jmr.2003.0328.

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The formation of barium monomolybdate (BaMoO4) in inequimolar powder mixtures of BaCO3 and MoO3 was examined under isothermal and nonisothermal conditions upon heating in air at 25–1200 °C, using thermogravimetry. Concurrence of the observed mass loss (due to the release of CO2) to the occurrence of the formation reaction was evident. Accordingly, the extent of reaction (x) was determined as a function of time (t) or temperature (T). The x-t and x-T data thus obtained were processed using a well-established mathematical apparatus and methods to characterize the nature of the reaction rate-dete
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