Single-pulse, broad-band coherent anti-stokes Raman spectroscopy of nitromethane within a diamond anvil cell

1989 ◽  
Vol 93 (2) ◽  
pp. 536-538 ◽  
Author(s):  
S. F. Rice ◽  
M. S. Costantino
Keyword(s):  
Raman Spectroscopy ◽  
Diamond Anvil Cell ◽  
Broad Band ◽  
Single Pulse ◽  
Diamond Anvil ◽  
Anti Stokes

scholarly journals Single-Pulse Coherent Raman Spectroscopy in Shock-Compressed Benzene

1983 ◽  
Vol 22 ◽  
Author(s):  
D. S. Moore ◽  
S. C. Schmidt ◽  
D. Schiferl ◽  
J. W. Shaner
Keyword(s):  
Raman Spectroscopy ◽  
Kerr Effect ◽  
Diamond Anvil Cell ◽  
Single Pulse ◽  
Spontaneous Raman Scattering ◽  
Liquid Benzene ◽  
Dynamic Experiments ◽  
Diamond Anvil ◽  
Coherent Raman ◽  
Anti Stokes

ABSTRACTSingle-pulse backwards stimulated Raman and reflected broadband coherent anti-Stokes Raman spectroscopy (BSRS and RBBCARS) have been used to measure the vibrational frequency shifts of the 992 cm−1 ring-stretching mode of liquid benzene shock-compressed to pressures up to 1.2 GPa. The resulting shifts of ∼7.5 cm−1/GPa in the dynamic experiments are compared to spontaneous Raman scattering measurements of heated samples compressed in a diamond-anvil cell. RBBCARS was used to simultaneously measure the ring-stretching mode vibrational frequencies of liquid benzene / liquid perdeuterobenzene mixtures shock-compressed to pressures up to 1.53 GPa. Additional experiments that demonstrate the difficulty of using polarization sensitive coherent Raman techniques, such as Raman-induced Kerr effect spectroscopy (RIKES), in shock-compressed samples are described.

The Fluorescence of Diamond and Raman Spectroscopy at High Pressures Using a New Design of Diamond Anvil Cell

1973 ◽  
Vol 27 (5) ◽  
pp. 377-381 ◽  
Author(s):  
D. M. Adams ◽  
S. J. Payne ◽  
K. Martin
Keyword(s):  
Raman Spectroscopy ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Fluorescence Emission ◽  
Type I ◽  
High Pressure Cell ◽  
Scattering Geometry ◽  
Infrared And Raman Spectroscopy ◽  
Bond Stretching ◽  
Diamond Anvil

A new design of diamond anvil high pressure cell suitable for use in infrared and Raman spectroscopy is described. Its performance is demonstrated with particular reference to the pressure dependence of the infrared spectrum of K2PtCl6 and the Raman spectrum of W(CO)6. In contrast to earlier reports, in which forward scattering geometry was used, this design of cell is shown to be very suitable for Raman use in the 180° excitation mode. However, severe limitations are imposed by the fluorescence emission of diamond and of sapphire. Conditions under which the cell can be used for Raman work are summarized. New fluorescence and Raman features are reported for diamond. In particular, a band at 1730 cm−1 is characteristic of type I stones and may be due to C to N bond stretching at defect centers.

Chemistry through cocrystals: pressure-induced polymerization of C2H2·C6H6to an extended crystalline hydrocarbon

2018 ◽  
Vol 20 (10) ◽  
pp. 7282-7294 ◽  
Author(s):  
Matthew D. Ward ◽  
Haw-Tyng Huang ◽  
Li Zhu ◽  
Arani Biswas ◽  
Dmitry Popov ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Crystal ◽  
Diamond Anvil Cell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Diamond Anvil

The 1 : 1 acetylene–benzene cocrystal, C2H2·C6H6, was synthesized under pressure in a diamond anvil cell (DAC) and its evolution under pressure was studied with single-crystal X-ray diffraction and Raman spectroscopy.

In situ Raman spectroscopic technique for high-pressure studies of mineral and fluid inclusions formation 

2021 ◽  
Author(s):  
Nadezda Chertkova ◽  
Anna Spivak ◽  
Egor Zakharchenko ◽  
Yuriy Litvin ◽  
Oleg Safonov ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Rapid Development ◽  
Spectroscopic Technique ◽  
Diamond Growth ◽  
Russian Science ◽  
Geological Processes ◽  
Diamond Anvil

<p>Rapid development of <em>in situ</em> experimental techniques provides researchers with new opportunities to model geological processes, which take place deep in the Earth’s interior. Raman spectroscopy is considered a powerful analytical tool for investigation of the samples subjected to high pressures in a diamond anvil cell, since in such experiments phase assemblages can be determined in real time using measured Raman spectra.</p><p>In this study, we describe experimental methods for <em>in situ</em> observation and spectroscopic analysis of fluids and minerals, which constitute environment for diamond growth, at the upper mantle pressure conditions. Experiments were conducted in the externally heated, “piston-cylinder” type diamond anvil cell at pressures exceeding 6 GPa and temperatures up to 600 degree C. Phase relationships and fluid speciation were monitored during experiments to reconstruct the environment and mechanism of inclusions formation. Compared to other analytical tools, commonly used in combination with diamond anvil cell apparatus, Raman spectroscopy offers several advantages, such as short sample preparation time, non-destructive characterization of the phases observed in the sample chamber and relatively short measurement time.</p><p>This work was supported by grant No. 20-77-00079 from the Russian Science Foundation.</p>

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