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Photodissociation Dynamics
The field of photodissociation dynamics has grown explosively in the past few decades. Spearheaded by developments in laser and molecular beam techniques, studies of photodissociation dynamics now
Autodetachment spectroscopy and dynamics of CH2CN− and CD2CN−
The technique of autodetachment spectroscopy is utilized in a study of two electronic states of CH2CN− and CD2CN−. The ground electronic state is a normal valence state while the outermost electron
Attosecond band-gap dynamics in silicon
Attosecond extreme ultraviolet (XUV) spectroscopy is used to resolve the electron transfer from valence to conduction band states in semiconductors, and distinguished the electron dynamics—which proceed faster than a quadrillionth of a second after laser excitation—from the comparatively slower lattice motion of the silicon atomic nuclei.
Photoelectron spectroscopy of CN−, NCO−, and NCS−
The 266 nm photoelectron spectra of CN−, NCO−, and NCS− have been recorded with a pulsed time‐of‐flight photoelectron spectrometer. The photoelectron spectrum of CN− has also been recorded at 213 nm
Light-induced states in attosecond transient absorption spectra of laser-dressed helium
Shaohao Chen,1,* M. Justine Bell,2,3,* Annelise R. Beck,2,3 Hiroki Mashiko,2 Mengxi Wu,1 Adrian N. Pfeiffer,2,3 Mette B. Gaarde,1 Daniel M. Neumark,2,3 Stephen R. Leone,2,3,4 and Kenneth J. Schafer1
Gas-Phase Infrared Spectrum of the Protonated Water Dimer
The experiment directly probes the shared proton region of the potential energy surface and reveals three strong bands below 1600cm−1 and one at 1740 cm−1 (for H5O2 +), which highlight the importance of intermode coupling in sharedProton systems.
Shapes and vorticities of superfluid helium nanodroplets
Using x-ray diffraction to deduce the shape of individual rotating droplets and image the resulting vortex patterns, Gomez et al. found that superfluid droplets can host a surprising number of vortices and can rotate faster than normal droplets without disintegrating.
Study of low‐lying electronic states of ozone by anion photoelectron spectroscopy of O−3
The low‐lying electronic states of ozone are studied using anion photoelectron spectroscopy of O−3. The spectra show photodetachment transitions from O−3 to the X 1A1 ground state and to the five
Photodissociation of linear carbon clusters Cn (n=4-6)
The photodissociation of mass-selected linear carbon clusters (Cn, n = 4−6) is studied using fast beam photofragment translational spectroscopy. The photofragment yield (PFY) spectra consist of