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Non-collinear high harmonic generation: a promising outcoupling method for cavity-assisted XUV generation
A Ozawa1, A Vernaleken, W Schneider
1Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. akira.ozawa@mpq.mpg.de
Optics Express
|June 12, 2008
Summary
We explored non-collinear high harmonic generation (NCHHG) using a chirped pulse amplification system. This method shows promise for efficient extreme ultraviolet (XUV) radiation generation and outcoupling.
Area of Science:
- * Atomic, Molecular, and Optical Physics
- * Quantum Optics
- * Laser Physics
Background:
- * High harmonic generation (HHG) is a key process for producing extreme ultraviolet (XUV) and soft X-ray radiation.
- * Non-collinear configurations offer potential advantages for controlling and enhancing HHG.
- * Chirped pulse amplification (CPA) systems provide high-intensity laser pulses necessary for HHG.
Purpose of the Study:
- * To experimentally investigate non-collinear high harmonic generation (NCHHG) using a CPA system.
- * To demonstrate efficient generation and outcoupling of high-order harmonic radiation.
- * To assess the potential of cavity-assisted NCHHG for XUV radiation production.
Main Methods:
- * Utilized a chirped pulse amplification system to generate intense laser pulses.
- * Employed a non-collinear experimental geometry with two fundamental beams crossing in a xenon gas target.
- * Investigated the spatial distribution and order of the generated high harmonic radiation.
Main Results:
- * Observed collimated high harmonic radiation of higher than 9th order.
- * The radiation was detected along the bisector of the two fundamental beams.
- * Demonstrated the feasibility of NCHHG in a gas target.
Conclusions:
- * Cavity-assisted non-collinear high harmonic generation is a promising technique for efficient XUV radiation generation.
- * NCHHG offers a viable pathway for controlled production and outcoupling of XUV light.
- * The experimental results validate the potential of NCHHG for future applications in XUV spectroscopy and microscopy.
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