Plasmon Mediated Single Photon Emission from a Nanocrystal Ensemble

• DOI: 10.1021/acs.jpclett.4c00540
• Publication Date: 2024-07-18T16:19:57Z
• Authors: Pritha Mondal; Subham Kumar Saha; Parna Roy; Navyashree Vasudeva; Ashwini Anshu; Guru Pratheep Raj...; Anshu Pandey
• Keywords: Single-Photon Source; Purcell effect

Quantum photonic devices require robust sources of single photons to perform basic computational and communication protocols. Thus, developing scalable, integrable, efficient quantum light has become crucial for the realization devices. Single dots are promising due their tunable emission wavelength. Here, we show emergence quantum-emitter-like antibunched behavior when multiple located in vicinity plasmonic particles. To evaluate robustness this phenomenon, consider both monometallic bimetallic We find that photoluminescence intensity plasmon coupled fits well a sublinear power law exponent is distinct from CQD aggregates. Significantly, coupling results reduced flickering, thus enabling more stable reliable photon source. Possible roles emergent excitonic interactions system discussed.