We demonstrate an experimental control of electron localization in deuterium molecular ions created and dissociated by the combined action of an attosecond pulse train and a many-cycle infrared (IR) pulse. The attosecond pulse train is synthesized using both even and odd high order harmonics of the driving IR frequency so that it can strobe the IR field… (More)
We have measured full momentum images of electrons rescattered from Xe, Kr, and Ar following the liberation of the electrons from these atoms by short, intense laser pulses. At high momenta the spectra show angular structure (diffraction) which is very target dependent and in good agreement with calculated differential cross sections for the scattering of… (More)
Identifying the factors that contribute to species distribution will help determine the impact of the changing climate on species’ range contraction and expansion. Ecological niche modelling is used to analyze the present and potential future distribution of rubber trees (Hevea brasiliensis) in two biogeographically distinct regions of India i.e., the… (More)
We report the first pump-probe spectra using 1 keV pulses from LCLS to excite N<sub>2</sub> in delayed coincidence with 800 nm laser pulses. The delay between pump and probe was controlled to within 50 fsec.