Femtosecond measurements of electric fields : from classical amplitudes to quantum fluctuations

Riek, Claudius; Seletskiy, Denis V.; Leitenstorfer, Alfred

Femtosecond measurements of electric fields : from classical amplitudes to quantum fluctuations

Files

Riek_2-1scj9dg2kswot4.pdf(439.05 KB)

Date

2017

EU project number

290876

Project

Ultrafast Quantum Physics in Amplitude and Phase - UltraPhase, ERC Advanced Grant

Collections

Physik
Zukunftskolleg

Publication type

Journal article

Publication status

Published

Published in

European Journal of Physics ; 38 (2017), 2. - 024003. - ISSN 0143-0807. - eISSN 1361-6404

Abstract

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.

Subject (DDC)

530 Physics

Cite This

ISO 690

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

BibTex

@article{Riek2017-03-01Femto-37290,
  year={2017},
  doi={10.1088/1361-6404/aa53a2},
  title={Femtosecond measurements of electric fields : from classical amplitudes to quantum fluctuations},
  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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Bibliography of Konstanz

Yes