151 citations · 232 across the 9 of their papers we have counts for
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Formation dynamics of exciton polariton vortices created by non-resonant annular pumping
Bernd Berger, Daniel Schmidt, Xuekai Ma +4
We study the spontaneous formation of exciton polariton vortices in an all-optical non-resonantly excited annular trap, which is formed by ring-shaped subpicosecond laser pulses. S…
Conditional Spectroscopy via Non-Stationary Optical Homodyne Quantum State Tomography
Johannes Thewes, Carolin Lüders, Marc Aßmann
Continuous variable quantum state tomography is one of the most powerful techniques to study the properties of light fields in quantum optics. However, the need for a fixed phase r…
Realization of all-optical vortex switching in exciton-polariton condensates
Xuekai Ma, Bernd Berger, Marc Assmann +5
Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the 'vorticity', they have been widely investigated in many p…
Spectroscopy of fractional orbital angular momentum states
Bernd Berger, Marius Kahlert, Daniel Schmidt +1
We present an approach for measuring the orbital angular momentum (OAM) of light tailored towards applications in spectroscopy and non-integer OAM values. It is based on the OAM so…
Compressive adaptive computational ghost imaging
Marc Aßmann, Manfred Bayer
Compressive sensing is considered a huge breakthrough in signal acquisition. It allows recording an image consisting of pixels using much fewer than measurements if it…