Results 21 to 30 of about 32,897 (303)

Toward time-resolved laser T-jump/X-ray probe spectroscopy in aqueous solutions

Structural Dynamics, 2019
Most chemical and biochemical reactions in nature and in industrial processes are driven by thermal effects that bring the reactants above the energy barrier for reaction.
O. Cannelli, C. Bacellar, R. A. Ingle, R. Bohinc, D. Kinschel, B. Bauer, D. S. Ferreira, D. Grolimund, G. F. Mancini, M. Chergui   +9 more
doaj   +1 more source

Harmonium: A pulse preserving source of monochromatic extreme ultraviolet (30–110 eV) radiation for ultrafast photoelectron spectroscopy of liquids

Structural Dynamics, 2016
A tuneable repetition rate extreme ultraviolet source (Harmonium) for time resolved photoelectron spectroscopy of liquids is presented. High harmonic generation produces 30–110 eV photons, with fluxes ranging from ∼2 × 1011 photons/s at 36 eV to ∼2 × 108
J. Ojeda, C. A. Arrell, J. Grilj, F. Frassetto, L. Mewes, H. Zhang, F. van Mourik, L. Poletto, M. Chergui   +8 more
doaj   +1 more source

Element- and enantiomer-selective visualization of molecular motion in real-time

Nature Communications, 2023
Complex molecules show element- and enantio-specific properties and reactivity. Here the authors demonstrate identification of the element- and enantiomer-selective motion of Ibuprofen molecule using X-ray photons at the carbon K-edge.
R. Mincigrucci, J. R. Rouxel, B. Rossi, E. Principi, C. Bottari, S. Catalini, J. S. Pelli-Cresi, D. Fainozzi, L. Foglia, A. Simoncig, A. Matruglio, G. Kurdi, F. Capotondi, E. Pedersoli, A. Perucchi, F. Piccirilli, A. Gessini, M. Giarola, G. Mariotto, M. Oppermann, S. Mukamel, F. Bencivenga, M. Chergui, C. Masciovecchio   +23 more
doaj   +1 more source

Fully Isomer-resolved Spectroscopy And Ultrafast Dynamics [PDF]

, 2022
\begin{wrapfigure}{l}{0pt} \includegraphics[scale=0.8]{Abstract_20220301.eps} \caption{Single-color REMPI spectra of 3-Aminophenol. Top - conventional molecular beam. Bottom - spectra in fully conformer-separated beam.} \label{figure} \end{wrapfigure} In
Abma, Grite L.
core   +1 more source

Conical Intersection versus Avoided Crossing: Geometric Phase Effect in Molecular High-Order Harmonics

Ultrafast Science, 2023
Nonadiabatic dynamics around an avoided crossing or a conical intersection play a crucial role in the photoinduced processes of most polyatomic molecules.
Guanglu Yuan, Ruifeng Lu, Shicheng Jiang, Konstantin Dorfman   +3 more
doaj   +1 more source

Fulde–Ferrell superfluidity in ultracold Fermi gases with Rashba spin–orbit coupling

New Journal of Physics, 2013
We theoretically investigate the inhomogeneous Fulde–Ferrell (FF) superfluidity in a three-dimensional atomic Fermi gas with Rashba spin–orbit coupling near a broad Feshbach resonance.
Hui Hu, Xia-Ji Liu
doaj   +1 more source

NONLINEAR POLARIZATION SPECTROSCOPY (FREQUENCY DOMAIN) STUDIES OF EXCITED STATE PROCESSES: THE B800–850ANTENNA OF RHODOBACTER SPHAEROIDES [PDF]

, 1993
Nonlinear polarization spectroscopy in the frequency domain allows rate constant determinations of fast electronic energy and phase relaxations together with characterization of the type of line broadening.
Bandilla, M., Scheer, Hugo, Voigt, B., Michael Bandilla, Bernd Voigt, Pfeiffer, M., Dieter Leupold, Leupold, D., Michael Pfeiffer, Hugo Scheer   +9 more
core   +1 more source

Mahan excitons in room-temperature methylammonium lead bromide perovskites

Nature Communications, 2020
The Mahan exciton, exotic quasiparticle predicted in 1967, had never been found in room temperature semiconductors. With ultrafast optics and many-body theory, Palmieri et al.
Tania Palmieri, Edoardo Baldini, Alexander Steinhoff, Ana Akrap, Márton Kollár, Endre Horváth, László Forró, Frank Jahnke, Majed Chergui   +8 more
doaj   +1 more source

THERMAL DENATURATION OF MONOMERIC AND TRIMERIC PHYCOCYANINS STUDIED BY STATIC AND SPECTROSCOPY POLARIZED TIME-RESOLVED FLUORESCENCE [PDF]

, 1984
C-Phycocyanin (PC) and allophycocyanin (APC). as well as the a-subunit of PC. have been isolated from the blue-green alga (cyanobacterium). Spirulina platensis.
John, Wolfhart, Hefferle, P., Scheer, Hugo, H. SCHEER, S. SCHNEIDER, Schneider, Siegfried, W. JOHN, P. HEFFERLE   +7 more
core   +1 more source

Ultrafast Transient Vibrational Action Spectroscopy of Cryogenically Cooled Ions

, 2023
Ultrafast transient vibrational action spectra of cryogenically cooled Re(CO)3(CH3CN)3+ ions are presented. Nonlinear spectra were collected in the time domain by monitoring the photodissociation of a weakly-bound N2 messenger tag as a function of delay ...
Zifan, Ma, Joseph, Fournier, Liangyi, Chen   +2 more
core   +1 more source