Research group
The Experimental Quantum Optics (EQO) group is working in structured light in the classical and quantum photonics domain and its interaction with matter. We further leverage structured light to encode high-dimensional quantum states for beneficial application in novel quantum technologies. A main research focus is to benefit from the complexity of the light field and quantum state in terms of super-resolved sensing, unconditionally-secure communication, and unconventional computing approaches. Key activities include the development of novel modulation schemes with a focus on increasing the modulation ability, efficiency, and scalability. Additionally we study methods to interface such high-dimensional light fields to chip-based platform while also investigating integrated modulation schemes.
Research infrastructure
The EQO group currently has 4 labs that are fully well-equipped with cutting-edge quantum photonics research equipment, including single frequency laser, high-power pulsed la-sers, EMCCD and SPAD cameras, multiple spatial light modulators, a single-photon sensitive spec-trometer, various bulk-optics photon entanglement sources, single-photon detectors (4 APDs for 500-800 nm, 8 SNSPDs for 600–1600 nm), and high-precision time-taggers. Additionally, the EQO group operates a custom-built laser-writing station to fabricate intergrated modulation schemes based on nanogratings in silica glass.