Demand for high-capacity data exchange, precise quality monitoring, and detection of environmentally or health-relevant agents is nowadays a main drive of scientific innovation. Quantum effects at the single-particle level offers the potential for exponentially faster computing, secure communications, and unparalleled sensing through the implementation of the so-called “quantum technologies”.
Single polyaromatic hydrocarbon (PAH) molecules in suitable hosts exhibit coherent light interactions at low temperatures. When efficiently coupled to nanophotonic devices, these molecules can act as both single-photon sources and nonlinear elements, enabling on-chip single-photon quantum logic gates.
Our research focuses on devices combining Dibenzoterrylene (DBT) molecules in anthracene crystals with dielectric waveguides and other various photonic structures. These emitters feature exceptional photostability, strong dipole transitions in the near-infrared (780 nm), and lifetime-limited linewidths of 30 MHz at 3 K. We are exploring various photonic designs, including materials like Si3N4 and polymers, and investigating both theoretical and experimental approaches.
