4 years ago

Photostable Molecules on Chip: Integrated Sources of Nonclassical Light

Photostable Molecules on Chip: Integrated Sources of Nonclassical Light
G. Kewes, C. Toninelli, A. P. Ovvyan, W. H. P. Pernice, F. S. Cataliotti, O. Benson, O. Neitzke, S. Pazzagli, P. Lombardi, N. Gruhler, G. Mazzamuto
The on-chip integration of quantum light sources and nonlinear elements constitutes a major step toward scalable photon-based quantum information processing and communication. In this work we demonstrate the potential of a hybrid technology that combines organic-molecule-based quantum emitters and dielectric chips consisting of ridge waveguides and grating far-field couplers. In particular, dibenzoterrylene molecules in thin anthracene crystals are used as single-photon sources, exhibiting long-term photostability, easy fabrication methods, almost unitary quantum yield, and lifetime-limited emission at cryogenic temperatures. We couple such single emitters to silicon nitride ridge waveguides, showing a coupling efficiency of up to 42 ± 2% over both propagation directions. Our results open a novel path toward a fully integrated and scalable photon-processing platform.

Publisher URL: http://dx.doi.org/10.1021/acsphotonics.7b00521

DOI: 10.1021/acsphotonics.7b00521

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