Phase-locked, time-delayed harmonic pulses for high spectral resolution in the extreme ultraviolet.
We present experiments in the time and frequency domains aimed at confirming the measured mutual phase coherence of time-delayed, collinear harmonic pulses. We show that pairs of phase-locked harmonic pulses of medium order can be generated for peak intensities up to ~1.5 10(14)W/cm(2) in xenon, demonstrating the possibility of performing high-resolution spectroscopy in the extreme ultraviolet with Ramsey-like techniques.
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M
Bellini
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Cavalieri
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Corsi
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Materazzi