90 citations · 174 across the 5 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…
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…