Mainz 2017 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 31: Poster: Quantum Optics and Photonics I
Q 31.82: Poster
Tuesday, March 7, 2017, 17:00–19:00, P OG1+2
Generation and characterization of tunable and shapeable few-optical-cycle mid infrared pulses — •Daniel Gerz1, Nick Paul1, Cristian Manzoni2, Giulio Cerullo2, and Marcus Motzkus1 — 1PCI, Ruprecht-Karls-Universität, D-69120 Heidelberg, Germany — 2Dipartimento di Fisica, Politecnico Milano, I-20133 Milano, Italy
The generation of short (<20fs), broadband, mid infrared (MIR) pulses in a robust manner still remains a significant challenge in various spectroscopic fields. Such pulses can be utilized for a number of different applications, including sub-gap electronic states and coherent control of small molecules. In order to promote major advancements in such fields, development of new, easy to use MIR sources is a must.
In this work, we present a two stage non-collinear parametric amplifier to be used for the generation of few-optical-cycle pulses with center wavelengths ranging from 2.9-3.3 µ m and powers in the order of few µ W [1].These pulses are then compressed and shaped using a germanium based acousto-optic modulator shaper. The aim is to readily shape such pulses into multipulse sequences which could be applied in multidimensional IR spectroscopy, or as a source of precisely tailored MIR push/dump pulses for 1D 3rd order (or higher) spectroscopies [2]. The pulse characterization is performed with a cross-correlation frequency resolved optical gating (XFROG) setup, which upconverts the MIR into the visible regime for easy and accurate detection.
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