Electronic measurement of femtosecond time delays for arbitrary-detuning asynchronous optical sampling

Optics Express
Laura AntonucciManuel Joffre

Abstract

Arbitrary-Detuning ASynchronous OPtical Sampling (ADASOPS) is a pump-probe technique which relies on the stability of femtosecond oscillators. It provides access to a multiscale time window ranging up to millisecond, combined with a sub-picosecond time resolution. In contrast with the first ADASOPS demonstration based on the interferometric detection of coincidences between optical pulses, we show here that the optical setup can now be reduced to a mere pair of photodetectors embedded in a specially-designed electronic system. In analogy with super-resolution methods used in optical microscopy for localizing single emitters beyond the diffraction limit, we demonstrate that purely electronic means allow the determination of time delays between each pump-probe pulse pair with a standard deviation as small as 200 fs. The new method is shown to be simpler, more versatile and more accurate than the coincidence-based approach.

References

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Oct 6, 2012·Optics Express·Laura AntonucciManuel Joffre
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Oct 21, 2015·Optics Express·Laura AntonucciManuel Joffre
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Feb 3, 2019·The Review of Scientific Instruments·Yin SongJennifer P Ogilvie
Oct 16, 2019·The Journal of Physical Chemistry Letters·Lara Martinez-FernandezRoberto Improta

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Citations

Oct 16, 2021·The Journal of Physical Chemistry Letters·Minhaeng Cho

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