Direct Measurement of Light Waves

Author:

Goulielmakis E.123,Uiberacker M.123,Kienberger R.123,Baltuska A.123,Yakovlev V.123,Scrinzi A.123,Westerwalbesloh Th.123,Kleineberg U.123,Heinzmann U.123,Drescher M.123,Krausz F.123

Affiliation:

1. Institut für Photonik, Technische Universität Wien, Gusshausstraße 27, A-1040 Wien, Austria.

2. Fakultät für Physik, Universität Bielefeld, D–33615 Bielefeld, Germany.

3. Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D–85748 Garching, Germany.

Abstract

The electromagnetic field of visible light performs ∼10 15 oscillations per second. Although many instruments are sensitive to the amplitude and frequency (or wavelength) of these oscillations, they cannot access the light field itself. We directly observed how the field built up and disappeared in a short, few-cycle pulse of visible laser light by probing the variation of the field strength with a 250-attosecond electron burst. Our apparatus allows complete characterization of few-cycle waves of visible, ultraviolet, and/or infrared light, thereby providing the possibility for controlled and reproducible synthesis of ultrabroadband light waveforms.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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