Criteria for deterministic single-photon emission in two-dimensional atomic crystals
Journal article, 2020

The deterministic production of single photons from two-dimensional materials promises to usher in a new generation of photonic quantum devices. In this work, we outline criteria by which single-photon emission can be realized in two-dimensional materials: spatial isolation, spectral filtering, and low excitation of quantum emitters. We explore how these criteria can be fulfilled in atomically thin transition metal dichalcogenides, where excitonic physics dictates the observed photoemission. In particular, we model the effect of defects and localized strain, in accordance with the most common experimental realizations, on the photon statistics of emitted light. Moreover, we demonstrate that an optical cavity has a negative impact on the photon statistics, suppressing the single-photon character of the emission by diminishing the effect of spectral filtering on the emitted light. Our work provides a theoretical framework revealing criteria necessary to facilitate single-photon emission in two-dimensional materials and thus can guide future experimental studies in this field.

Author

Joshua Thompson

Chalmers, Physics, Condensed Matter and Materials Theory

Samuel Brem

Chalmers, Physics, Condensed Matter and Materials Theory

Hanlin Fang

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology

Joey Frei

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology

Saroj Prasad Dash

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Witlef Wieczorek

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology

Ermin Malic

Chalmers, Physics, Condensed Matter and Materials Theory

Physical Review Materials

2475-9953 (ISSN)

Vol. 4 8 084006

Graphene Core Project 3 (Graphene Flagship)

European Commission (EC), 2020-04-01 -- 2023-03-31.

Areas of Advance

Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)

Materials Science

Subject Categories

Atom and Molecular Physics and Optics

Condensed Matter Physics

DOI

10.1103/PhysRevMaterials.4.084006

More information

Latest update

3/24/2021