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Updated: Jun 17, 2026
08:22
Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Optical lifetime measurements using a positive ion van de graaff accelerator
Applied Optics
|January 12, 2010
Abstract:
A system for direct observation of excited state optical mean lives using the delayed coincidence counting technique is described. The system uses a pulsed proton beam for excitation, a high speed time-to-amplitude converter and an on-line digital computer for data reduction. Mean lives longer than 1 nsec can be measured. Preliminary measurements on the 3(1)p, 4(3)S, and 4(1)D levels of helium and several vibrational bands of N(2) are presented to illustrate the capabilities of the system.
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