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Two-colour high-speed asynchronous optical sampling based on offset-stabilized Yb:KYW and Ti:sapphire oscillators

Two-colour high-speed asynchronous optical sampling based on offset-stabilized Yb:KYW and Ti:sapphire oscillators

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KRAUSS, Nico, Gerhard SCHÄFER, Johanna FLOCK, Oliver KLIEBISCH, Changxiu LI, Helena G. BARROS, Dirk C. HEINECKE, Thomas DEKORSY, 2015. Two-colour high-speed asynchronous optical sampling based on offset-stabilized Yb:KYW and Ti:sapphire oscillators. In: Optics Express. 23(14), pp. 18288-18299. ISSN 1094-4087. Available under: doi: 10.1364/OE.23.018288

@article{Krau2015Twoco-31672, title={Two-colour high-speed asynchronous optical sampling based on offset-stabilized Yb:KYW and Ti:sapphire oscillators}, year={2015}, doi={10.1364/OE.23.018288}, number={14}, volume={23}, issn={1094-4087}, journal={Optics Express}, pages={18288--18299}, author={Krauß, Nico and Schäfer, Gerhard and Flock, Johanna and Kliebisch, Oliver and Li, Changxiu and Barros, Helena G. and Heinecke, Dirk C. and Dekorsy, Thomas} }

We present a high-speed asynchronous optical sampling system, based on two different Kerr-lens mode-locked lasers with a GHz repetition rate: An Yb:KYW oscillator and a Ti:sapphire oscillator are synchronized in a master-slave configuration at a repetition rate offset of a few kHz. This system enables two-colour pump-probe measurements with resulting noise floors below 10<sup>-6</sup> at a data aquisition time of 5 seconds. The measured temporal resolution within the 1 ns time window is below 350 fs, including a timing jitter of less than 50 fs. The system is applied to investigate zone-folded coherent acoustic phonons in two different semiconductor superlattices in transmission geometry at a probe wavelength far below the bandgap of the superlattice constituents. The lifetime of the phonon modes with a zero wave vector and frequencies in the range from 100 GHz to 500 GHz are measured at room temperature and compared with previous work Kliebisch, Oliver 2015-09-02T10:56:06Z eng Dekorsy, Thomas Krauß, Nico Heinecke, Dirk C. Dekorsy, Thomas Li, Changxiu Two-colour high-speed asynchronous optical sampling based on offset-stabilized Yb:KYW and Ti:sapphire oscillators Flock, Johanna Barros, Helena G. Kliebisch, Oliver Heinecke, Dirk C. Li, Changxiu Flock, Johanna Schäfer, Gerhard Barros, Helena G. Schäfer, Gerhard 2015-09-02T10:56:06Z 2015 Krauß, Nico

Dateiabrufe seit 02.09.2015 (Informationen über die Zugriffsstatistik)

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