Sub-cycle slicing of phase-locked and intense mid-infrared transients

We demonstrate sub-cycle manipulation of mid-infrared optical waveforms in the time domain. This goal is accomplished via efficient reflection at a semiconductor surface induced by femtosecond interband excitation. The ultrafast response of this process allows slicing of high-field multi-terahertz t...

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Bibliographic Details
Published inNew journal of physics Vol. 16; no. 6; pp. 63033 - 10
Main Authors Mayer, Bernhard, Schmidt, Christian, Bühler, Johannes, Seletskiy, Denis V, Brida, Daniele, Pashkin, Alexej, Leitenstorfer, Alfred
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 17.06.2014
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Summary:We demonstrate sub-cycle manipulation of mid-infrared optical waveforms in the time domain. This goal is accomplished via efficient reflection at a semiconductor surface induced by femtosecond interband excitation. The ultrafast response of this process allows slicing of high-field multi-terahertz transients down to the single optical cycle. Ultrabroadband and phase-stable transients with peak amplitudes beyond 10 MV cm−1 are obtained, paving the way for efficient coherent control of light-matter interaction in the non-perturbative regime. The microscopic analysis of electron-hole plasma generation in germanium reveals a decisive role of two-photon absorption allowing efficient slicing up to mid-infrared frequencies.
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ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/16/6/063033