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- Phase-matched generation of highly coherent radiation in water window region
- Dao, Lap V.; Hall, Chris; Vu, Hoang L.; Dinh, Khoung B.; Balaur, Eugenui; Hannaford, Peter; Smith, Trevor A.
- Highly coherent extreme ultraviolet radiation around the water window region (∼4.4 nm) is generated in a semi-infinitive helium gas cell using infrared pulses of wavelength 1300 nm, energy 2.5 mJ, duration 40 fs, and repetition rate 1 kHz. The pressure-squared dependence of the intensity and the almost-perfect Gaussian profile and low divergence of the high harmonic source indicate a phase-matched generation process. The spatial coherence of the source is studied using Young’s double-slit measurements.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy
- Applied Optics, Vol. 51, no. 18 (Jun 2012), pp. 4240-4245
- Publication year
- FOR Code(s)
- 0205 Optical Physics; 0906 Electrical and Electronic Engineering; 0913 Mechanical Engineering
- Highly coherent radiation; Phase matching; Ultraviolet radiation; Water window region
- Optical Society of America
- Publisher URL
- Copyright © 2012 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/AO.51.004240. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
- Full text
- Peer reviewed