High-order harmonic generation experiments with IR laser pulses

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DOIResolve DOI: http://doi.org/10.1117/12.735256
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TypeArticle
Proceedings titleUltrafast X-Ray Sources and Detectors
Series titleProceedings of SPIE; Volume 6703
ConferenceUltrafast X-Ray Sources and Detectors, August 26-27, 2007, San Diego, CA, USA
ISSN0277-786X
ISBN9780819468512
Article number67030E
SubjectImaging systems; Infrared radiation; Laser pulses; Light sources; Ultraviolet radiation; Molecular imaging; Nitrogen molecules; Optical parametric amplifier (OPA); Harmonic generation
AbstractWe report on the first experiments of high-order harmonic generation done with the 100 Hz high-energy optical parametric amplifier (OPA) of the Advanced Laser Light Source. Using krypton and argon as targets, we show that the OPA's signal beam - with a wavelength range from 1200 nm to 1600 nm, 1.3 mJ to 0.8 mJ of pulse energy and 100 fs pulse duration - can generate fully tunable XUV radiation down to a wavelength of 15 nm. We have also started to investigate the use of the OPA pulses for molecular imaging. Inducing molecular alignment with 800 nm, 70 fs pulses, we have measured the high harmonics spectra generated with 1300 nm pulses from nitrogen molecules oriented at various angles with respect to the ionizing field, in order to study for the first time the technique of molecular orbital tomography with a laser wavelength different than 800 nm.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; Industry Partnership Facility; NRC Steacie Institute for Molecular Sciences; National Research Council - EXEC
Peer reviewedYes
NPARC number21276190
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Record identifier04b16ce4-3372-4cae-81fa-0dbb50d53937
Record created2015-09-28
Record modified2017-09-13
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