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OSA Student Chapter Meeting

SPEAKER: Nathan Hart
TITLE: "Intensity Resolved Ionization Spectroscopy"
In 1987 Freedman et. al. showed that Above Threshold Ionization (ATI) with short pulses (<0.4 ps) produces spectroscopic data of the atoms or molecules ionized. This method has the advantage over absorption spectroscopy in that peaks in the ATI spectrum can be resonantly enhanced by changing pulse characteristics. McIlrath et. al. (1987) showed theoretically and Lambropoulos et. al. (1993) showed experimentally that resonance peaks in the spectrum are partially masked by the spatial distribution of intensities in the laser focus. Nonetheless, merging experimental techniques with deconvolution algorithms provides a possible means to do intensity resolved ionization spectroscopy.

1. Freeman, R.R., Bucksbaum, P.H., Milchberg, H., Darack, S., Schumacher, D. and Geusic, M.E. (1987). Phys. Rev. Lett. 59, 1092.
2. McIlrath, T.J.,Freeman, R.R., Cooke, W. E. and Woerkom, L.D. (1989). Phys. Rev. A 40, 2770.
3. Lambropoulos, P. (1993). AIP Conf. Proc., 275, 499.

Thursday, April 18, 2013
IQSE 578, 12:30 noon
Mitchell Physics Building

Department of Physics and Astronomy
Institute for Quantum Science and Engineering
Texas A&M University

(Pizza lunch as usual. Newcomers welcome!)

Host: Andrew Traverso