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Absorption-limited high harmonic generation in the tight focusing regime

: Rothhardt, Jan; Krebs, Manuel; Hädrich, Steffen; Demmler, Stefan; Limpert, Jens; Tünnermann, Andreas

Optical Society of America -OSA-, Washington/D.C.:
High Intensity Lasers and High Field Phenomena, HILAS 2014 : March 18-20, 2014, Berlin Germany
Washington, DC: OSA, 2014 (OSA Technical digest series)
ISBN: 978-1-55752-995-4
Paper HW3C.3
Conference "High Intensity Lasers and High Field Phenomena" (HILAS) <2014, Berlin>
Conference Paper
Fraunhofer IOF ()

Phase-matched and absorption-limited HHG can be achieved despite tight focusing. We present theoretical considerations and observed a conversion efficiency of >10-6 in this regime of particular importance for high repetition rate sources.