High-speed asynchronous optical sampling for high-sensitivity detection of coherent phonons

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2007
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Taubert, Richard
Hudert, Florian
Schrenk, Gerhard
Cerna, Roland
Kotaidis, Vassilios
Schmitz, Johannes
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Journal of Physics: Conference Series. 2007, 92, pp. 012005. eISSN 1742-6596. Available under: doi: 10.1088/1742-6596/92/1/012005
Zusammenfassung

A new optical pump-probe technique is implemented for the investigation of coherent acoustic phonon dynamics in the GHz to THz frequency range which is based on two asynchronously linked femtosecond lasers. Asynchronous optical sampling (ASOPS) provides the performance of on all-optical oscilloscope and allows us to record optically induced lattice dynamics over nanosecond times with femtosecond resolution at scan rates of 10 kHz without any moving part in the set-up. Within 1 minute of data acquisition time signal-to-noise ratios better than 107 are achieved. We present examples of the high-sensitivity detection of coherent phonons in superlattices and of the coherent acoustic vibration of metallic nanoparticles.

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ISO 690DEKORSY, Thomas, Richard TAUBERT, Florian HUDERT, Gerhard SCHRENK, Albrecht BARTELS, Roland CERNA, Vassilios KOTAIDIS, Anton PLECH, Klaus KÖHLER, Johannes SCHMITZ, Joachim WAGNER, 2007. High-speed asynchronous optical sampling for high-sensitivity detection of coherent phonons. In: Journal of Physics: Conference Series. 2007, 92, pp. 012005. eISSN 1742-6596. Available under: doi: 10.1088/1742-6596/92/1/012005
BibTex
@article{Dekorsy2007Highs-4685,
  year={2007},
  doi={10.1088/1742-6596/92/1/012005},
  title={High-speed asynchronous optical sampling for high-sensitivity detection of coherent phonons},
  volume={92},
  journal={Journal of Physics: Conference Series},
  author={Dekorsy, Thomas and Taubert, Richard and Hudert, Florian and Schrenk, Gerhard and Bartels, Albrecht and Cerna, Roland and Kotaidis, Vassilios and Plech, Anton and Köhler, Klaus and Schmitz, Johannes and Wagner, Joachim},
  note={Article Number: 12005}
}
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