Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 1: Quantum Optics I

Q 1.2: Vortrag

Montag, 23. März 2015, 11:45–12:00, C/HSO

A simple method for direct quantum pulse characterization in the time domain — •Markus Allgaier, Vahid Ansari, Viktor Quiring, Raimund Ricken, Hubertus Suche, Benjamin Brecht, and Christine Silberhorn — Applied Physics, University of Paderborn, Warburger Straße 100, 33098, Paderborn

We explore a new approach for measuring the time domain structure of ultra fast single photon pulses at telecom wavelength based on the quantum pulse gate (QPG) recently introduced by our group [1]. Our dispersion engineered QPG enables efficient group-velocity matched sum frequency conversion where the converted photon is in the visible range, which allows for easy detection. The temporal resolution of the process can be as short as the pump pulse duration, which is in the range of 100 fs. We propose to use this device for direct quantum pulse characterization in the time domain by sampling the single photon pulse with a short pump pulse.

[1] B. Brecht, et al., Phys. Rev. A 90, 030302(R) (2014)