90 citations · 477 across the 17 of their papers we have counts for
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Two-Dimensional Terahertz Spectroscopy of Condensed-Phase Molecular Systems
Klaus Reimann, Michael Woerner, Thomas Elsaesser
Nonlinear terahertz (THz) spectroscopy relies on the interaction of matter with few-cycle THz pulses of electric field amplitudes up to megavolts/centimeter (MV/cm). In condensed-p…
Structural Discrimination of Phosphate Contact Ion Pairs in Water by Femtosecond 2D-IR Spectroscopy
Achintya Kundu, Jakob Schauss, Benjamin P. Fingerhut +1
The distinct structures of contact ion pairs in water are identified. Nonlinear infrared (IR) spectroscopy and theoretical calculations allow for the separation and assignment of s…
Impact of RNA Melting on Hydrating Water Structure Mapped by Femtosecond 2D-IR Spectroscopy
Benjamin P. Fingerhut, Achintya Kundu, Jakob Schauss +1
We discern hydration geometries around the sugar-phosphate-backbone of an RNA double helix at the molecular level. RNA disordering upon melting is connected with a transition from…
Phosphate Vibrations Probe Electric Fields in Hydrated Biomolecules: Spectroscopy, Dynamics, and Interactions
Thomas Elsaesser, Jakob Schauss, Achintya Kundu +1
Electric interactions have a strong impact on the structure and dynamics of biomolecules in their native water environment. Given the variety of water arrangements in hydration she…
Terahertz Polaron Oscillations of Electrons Solvated in Liquid Water
Ahmed Ghalgaoui, Benjamin P. Fingerhut, Klaus Reimann +2
The terahertz (THz) response of solvated electrons in liquid water is studied in nonlinear ultrafast pump-probe experiments. Free electrons with concentrations from c_e = 4 to 140…
Magnesium Contact Ions Stabilize the Tertiary Structure of Transfer RNA: Electrostatics Mapped by Two-Dimensional Infrared Spectra and Theoretical Simulations
Jakob Schauss, Achintya Kundu, Benjamin P. Fingerhut +1
Ions interacting with hydrated RNA play a central role in defining its secondary and tertiary structure. While spatial arrangements of ions, water molecules, and phosphate groups h…