High-order harmonic generation in a capillary discharge

Rocca, Jorge J.; Kapteyn, Henry C.; Mumane, Margaret M.; Gaudiosi, David; Grisham, Michael E.; Popmintchev, Tenio V.; Reagan, Brendan A.

High-order harmonic generation in a capillary discharge

Patent · 01 June 2010

OSTI ID:1176327

Rocca, Jorge J.; Kapteyn, Henry C.; Mumane, Margaret M.; Gaudiosi, David; Grisham, Michael E.; Popmintchev, Tenio V.; Reagan, Brendan A.

A pre-ionized medium created by a capillary discharge results in more efficient use of laser energy in high-order harmonic generation (HHG) from ions. It extends the cutoff photon energy, and reduces the distortion of the laser pulse as it propagates down the waveguide. The observed enhancements result from a combination of reduced ionization energy loss and reduced ionization-induced defocusing of the driving laser as well as waveguiding of the driving laser pulse. The discharge plasma also provides a means to spectrally tune the harmonics by tailoring the initial level of ionization of the medium.

Research Organization:: Colorado State Univ., Fort Collins, CO (United States); Univ. of Colorado, Denver, CO (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-04ER15592

Assignee:: Colorado State University Research Foundation (Fort Collins, CO); Regents of the University of Colorado, a body corporate (Denver, CO)

Patent Number(s):: 7,729,403

Application Number:: 11/804,888

OSTI ID:: 1176327

Country of Publication:: United States

Language:: English

References (13)

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