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Graduate Student Seminar - 03/30/2012

"Investigation of High-Intensity Laser Interaction with Nitrogen Clusters: Attempt at a Water Window Recombination X-Ray Laser"

by Andy Goers

Friday, March 30, 2012 -- 12:00 p.m.
Large Conference Room, 1207 Energy Research Facility

Advisor:  Professor Howard Milchberg

Coherent x-ray sources promise to open the door to a wide variety of new and interesting physics and engineering. In particular, a coherent x-ray source between the K absorption edges of carbon and oxygen would allow in situ high-resolution imaging of biological materials.  Though available through large-scale synchrotron and x-ray free electron laser facilities, coherent x-rays have so far been beyond the reach of normal university laboratories.  The interaction of high-intensity laser pulses with gases of atomic and molecular clusters has been shown to be an efficient source of EUV and soft x-ray radiation.  I will present a recent study of the interaction of our 25 TW laser with a nitrogen cluster gas of varying density and mean cluster size with the aim of producing a water window x-ray laser on the hydrogen-like nitrogen 2p-1s spectral line.

For additional information about the IREAP Graduate Student Seminars, contact David Meichle.

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