Regensburg 2022 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 20: Poster
DS 20.46: Poster
Mittwoch, 7. September 2022, 16:00–18:00, P3
Overcoming the integration issues between 2D materials and waveguides — •Oscar Camacho Ibarra1, Ioannis Caltzidis1, Selim Scharmer2, Samuel Gyger2, Marc Sartison1, and Klaus D. Jöns1 — 1HQPD lab, Department of Physics, Paderborn University, Germany — 2Quantum Nanophotonics, KTH Royal Institute of Technology, Sweden
To achieve fully operational quantum photonic integrated circuits, developing a scalable platform capable of supplying an efficient coupling between single-photon emitters and photonic circuitry is essential. A hybrid approach is the most favorable to integrate single-photon emitters with other on-chip components since the advantages of each material platform are exploited. Single-photon emitters hosted in 2D materials are emerging technologies and promising candidates for future scalable photonic circuits. However, the coupling of light from these emitters into waveguides remains challenging: In particular, higher coupling efficiency and reduction of spectral jitter are needed. Both issues can be simultaneously overcome by implementing a cavity in the photonic circuit. In this work, 1D photonic crystal cavities were designed and simulated for later integration of 2D emitters. These photonic crystal cavities are designed to be efficiently coupled to waveguide modes, and they possess high*quality factors and small mode volumes, resulting in prominent Purcell factors. Furthermore, the cavity geometrical structure can act as nucleation sites for strain*driven single-photon emitters, allowing a self-alignment process between emitter and cavity.