Ultrafast Time-Resolved Photoelectric Emission

Ultrafast Time-Resolved Photoelectric Emission.

The emission times of laser-triggered electrons from a sharp tungsten tip are directly characterized under ultrafast, near-infrared laser excitation at Keldysh parameters of 6.6<γ<19.1. Emission delays up to 10 fs are observed, which are inferred from the energy gain of photoelectrons emitted into a synchronously driven microwave cavity. Few femtosecond timing resolution is achieved in a config...

Ultrafast Time-Resolved Spectroscopy

Theory for Time Resolved Emission Spectra

Explicit equations for the calculation of time resolved emission spectra from molecules undergoing collisional vibrational relaxation are presented. The equations describe the changes of the emission spectrum with time, after a delta puke excitation. Alternatively, they can be used to obtain the steady state (frequency resolved) emission spectrum as a function of the pressure of added buffer ga...

Robust reconstruction of time-resolved diffraction from ultrafast streak cameras

In conjunction with ultrafast diffraction, streak cameras offer an unprecedented opportunity for recording an entire molecular movie with a single probe pulse. This is an attractive alternative to conventional pump-probe experiments and opens the door to studying irreversible dynamics. However, due to the "smearing" of the diffraction pattern across the detector, the streaking technique has thu...

Time resolved photoelectron spectroscopy with ultrafast soft x-ray light

2001 This thesis entitled: Time resolved photoelectron spectroscopy with ultrafast soft x-ray light written by Lora Nugent-Glandorf has been approved for the Department of Chemistry and Biochemistry Date The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentione...