Abstract
A pulse clean technique in time domain combining noncollinear optical-parametric amplification and second-harmonic generation is demonstrated. The measurement-limited <1010 temporal contrast ratio of the 0:5 mJ=40 fs pulse near 800nm is obtained over a large temporal range extending from >1 ps before the main pulse. The contrast ratio enhancement as fourth power of the initial contrast is demonstrated. The total efficiency is <6% for the 8:2 mJ=40 fs initial incident femtosecond pulse.
Original language | English |
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Pages (from-to) | 781-783 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 36 |
Issue number | 6 |
DOIs | |
Publication status | Published - 15 Mar 2011 |
Externally published | Yes |