Speaker
Description
Optical Parametric Chirped-Pulse Amplifiers (OPCPAs) are tunable femtosecond sources widely employed for spectroscopy and high-field physics, for instance to generate attosecond pulses. A key property of such sources is the ability to produce, to some extent, pulses with a stable shot-to-shot Carrier Envelope Phase (CEP). This property is mandatory for most of the experiments involving highly nonlinear light-matter interaction.
However, the stability of the CEP is harder to achieve for high-energy, high average power, complex systems. One suspected cause of remaining CEP instability is the nonlinear stage for supercontinuum generation (SCG). In addition, SCG is used both in the OPCPA architecture itself and as a part of the metrology to evaluate CEP stability.
The PhD project thus focuses on the quantitative study of CEP noise sources, including SCG. This poster/presentation shows the proposed interferometric experimental setup to measure the phase stability during SCG process and assesses the influence of the most key parameters on said stability.
