Photon properties of single graphene nanoribbon microcavity laser
Guangcun Shan
TL;DR
This paper presents a quantum-mechanical model of a single graphene nanoribbon in a microcavity, demonstrating its potential as an ultralow-threshold nanolaser with enhanced photon emission due to exciton-photon coupling.
Contribution
It introduces a fully-quantum treatment of a GNR microcavity system including excitonic interactions, highlighting its lasing capabilities and low threshold.
Findings
Enhanced photon emission via exciton-photon coupling
Potential for ultralow-threshold nanolaser
Single GNR can serve as a nanolaser
Abstract
In this work, I propose a scheme about a single graphene nanoribbon (GNR) emitter in a microcavity, and focus on a fully-quantum-mechanical treatment model with the excitonic interaction included to investigate the photon properties and lasing action. When the single armchair-edged GNRs (AGNRs) microcavity system is pumped, the exciton-photon coupling provides more photons and enhances the photon emission process, making it essentially a lasing object. The theoretical results demonstrated that single AGNR in a semiconductor microcavity system maybe serve as a nanolaser with ultralow lasing threshold.
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