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Related papers: Infrared spectroscopy of endohedral water in C$_{6…

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An absorption spectrum of H$_2$$^{16}$O at 1950 K is recorded in a premixed methane/air flat flame using a cavity-enhanced optical frequency comb-based Fourier transform spectrometer. 2417 absorption lines are identified in the 6250 -- 6670…

To help address the need for predicting radiative heat transfer (RHT) behavior of molten salts, we conducted a comprehensive review of methods and data from infrared optical spectroscopic measurements on molten fluoride salts.…

The systematic shifts of the transition frequencies in the molecular hydrogen ions are of relevance to ultra-high-resolution radio-frequency, microwave and optical spectroscopy of these systems, performed in ion traps. We develop the…

Atomic Physics · Physics 2015-06-16 Dimitar Bakalov , Stephan Schiller

Saturated absorption measurements of transitions in the (2-0) band of radioactive tritium hydride (HT) are performed with the ultra-sensitive NICE-OHMS intracavity absorption technique in the range 1460-1510 nm. The hyperfine structure of…

Atomic Physics · Physics 2024-01-29 F. M. J. Cozijn , M. L. Diouf , W. Ubachs , V. Hermann , M. Schlösser

A structural transformation in water upon compression was recently observed at the temperature $T=277$~K in the vicinity of the pressure $p \approx 2\;000$~Atm [R.M. Khusnutdinoff, A.V. Mokshin, J. Non-Cryst. Solids \textbf{357}, 1677…

Disordered Systems and Neural Networks · Physics 2015-06-03 Ramil M. Khusnutdinoff , Anatolii V. Mokshin

Photocatalytic- and Photoelectrochemical water splitting is currently performed using radiation sources with wavelengths < 1000 nm, i.e. in the near infrared range (NIR). The fact that water has a broad absorption band, which lies at…

Chemical Physics · Physics 2023-01-16 Klara Ruewe , Helmut Schaefer

X-ray Raman spectra of liquid, sub- and super- critical water at the oxygen K-edge were measured, at densities 1.02 - 0.16 gcm^-3. Measurements were made along both an isotherm and an isochore passing near the critical point. As density is…

Chemical Physics · Physics 2012-10-17 D. Ishikawa , Y. Q. Cai , D. M. Shaw , J. S. Tse , N. Hiraoka , A. Q. R. Baron

Together with the 74 lines belonging to (0,9,0)-(0,0,0) band, the high-resolution absorption spectrum of H2O+ was observed in the visible region of 16680 -17300 (cm-1) using optical heterodyne magnetic rotation enhanced velocity modulation…

Optics · Physics 2007-05-23 Hua Zhuang , Yangqin Chen , Wenhai Ji , Shenghai Wu , Zhiyi Bi , Longsheng Ma

We studied dielectric properties of nano-sized liquid water samples confined in polymerized silicates MCM-41 characterized by the porous sizes \sim 3-10nm. We report the direct measurements of the dielectric constant by the dielectric…

Soft Condensed Matter · Physics 2015-05-27 P. O. Fedichev , L. I. Menshikov , G. S. Bordonskiy , A. O. Orlov

Electronic spectra of C$_6$H are measured in the $18\,950-21\,100$ cm$^{-1}$ domain using cavity ring-down spectroscopy of a supersonically expanding hydrocarbon plasma. In total, 19 (sub)bands of C$_6$H are presented, all probing the…

Chemical Physics · Physics 2016-08-03 Xavier Bacalla , Edcel J. Salumbides , Harold Linnartz , Wim Ubachs , Dongfeng Zhao

We present high-spectral resolution observations from 12.96 - 13.33 microns towards Orion IRc2 using the mid-infrared spectrograph, EXES, on SOFIA. These observations probe the physical and chemical conditions of the Orion hot core, which…

The model glass-former glycerol and its aqueous mixtures were investigated with terahertz-time domain spectroscopy (THz-TDS) in the frequency range of 0.3--3.0\,THz at temperatures from 80--305\,K. It was shown that the infrared absorption…

Disordered Systems and Neural Networks · Physics 2023-05-11 Johanna Kölbel , Walter Schirmacher , Evgenyi Shalaev , J. Axel Zeitler

This work describes experiments on thermal dynamics of pure H2O excited by hydrodynamic cavitation, which has been reported to facilitate the spin conversion of para- and ortho-isomers at water interfaces. Previous measurements by NMR and…

Robotics · Computer Science 2023-01-31 Serge Kernbach

A wave turbulence theory is developed for inertial electron magnetohydrodynamics (IEMHD) in the presence of a relatively strong and uniform external magnetic field $\boldsymbol{B_0} = B_0 \hat{\boldsymbol{e}}_\|$. This regime is relevant…

Plasma Physics · Physics 2022-10-26 Vincent David , Sébastien Galtier

Measuring the water deuterium fractionation in the inner warm regions of low-mass protostars has so far been hampered by poor angular resolution obtainable with single-dish ground- and space-based telescopes. Observations of water…

Solar and Stellar Astrophysics · Physics 2012-11-29 Magnus V. Persson , Jes K. Jørgensen , Ewine F. van Dishoeck

The evaporation of drops of water placed at the center of long poly(methyl methacrylate) microfluidic channels with a rectangular cross section of 0.38 mm2 is studied by simultaneously monitoring the shapes of two samples, one is in a 300…

The properties of amorphous solid water at and near the calorimetric glass transition temperature, $T_{g}$, of 136 K have been debated for years. One hypothesis is that water turns into a "true" liquid at $T_{g}$ (i.e., it becomes ergodic)…

Soft Condensed Matter · Physics 2025-03-03 Greg A. Kimmel , Megan K. Dunlap , Kirill Gurdumov , R. Scott Smith , Loni Kringle , Bruce D. Kay

This paper reports infrared spectroscopic studies on GdBaCo$_{2}$O$_{5.5}$ layered perovskite which exhibits successive magnetic transitions from paramagnetic to ferromagnetic to antiferromagnetic states as well as high temperature metal to…

Strongly Correlated Electrons · Physics 2015-05-19 Shraddha Ganorkar , K. R. Priolkar

We report the detection of the H_2O molecule in absorption at a redshift z = 0.68466 in front of the gravitationally lensed quasar B0218+357. We detect the fundamental transition of ortho-water at 556.93 GHz (redshifted to 330.59 GHz). The…

Astrophysics · Physics 2016-08-30 F. Combes , T. Wiklind

Rotational-vibrational transitions of the fundamental vibrational modes of the $^{12}$C$^{14}$N$^+$ and $^{12}$C$^{15}$N$^+$ cations have been observed for the first time using a cryogenic ion trap apparatus with an action spectroscopy…

Chemical Physics · Physics 2021-03-02 Jose L. Domenech , Oskar Asvany , Charles R. Markus , Stephan Schlemmer , Sven Thorwirth