Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1scj9dg2kswot4 |
Author: | Riek, Claudius; Seletskiy, Denis V.; Leitenstorfer, Alfred |
Year of publication: | 2017 |
Published in: | European Journal of Physics ; 38 (2017), 2. - 024003. - ISSN 0143-0807. - eISSN 1361-6404 |
DOI (citable link): | https://dx.doi.org/10.1088/1361-6404/aa53a2 |
Summary: |
Ultrabroadband electro-optic sampling is presented as an extremely sensitive technique to detect electric field amplitudes in free space. The temporal resolution provided by few-femtosecond laser pulses results in a bandwidth exceeding 100 THz, potentially covering the entire infrared spectral range. A pedagogic introduction to the operational principle of the method is given along the lines of a classical coherent input field and a zincblende-type electro-optic sensor. We then show that even the bare vacuum fluctuations of the electric field in the quantum ground state may be detected. This time-domain approach to quantum physics operates directly on sub-cycle scales where no local energy conservation holds. Therefore, signals may be obtained from purely virtual photons without amplification to finite intensity.
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Subject (DDC): | 530 Physics |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
RIEK, Claudius, Denis V. SELETSKIY, Alfred LEITENSTORFER, 2017. Femtosecond measurements of electric fields : from classical amplitudes to quantum fluctuations. In: European Journal of Physics. 38(2), 024003. ISSN 0143-0807. eISSN 1361-6404. Available under: doi: 10.1088/1361-6404/aa53a2
@article{Riek2017-03-01Femto-37290, title={Femtosecond measurements of electric fields : from classical amplitudes to quantum fluctuations}, year={2017}, doi={10.1088/1361-6404/aa53a2}, number={2}, volume={38}, issn={0143-0807}, journal={European Journal of Physics}, author={Riek, Claudius and Seletskiy, Denis V. and Leitenstorfer, Alfred}, note={Article Number: 024003} }
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