Graphene plasmonics offers a promising platform for strong light-matter interactions due to its unique properties. Unlike traditional noble-metal plasmons, graphene plasmons exhibit enhanced confinement and longer propagation distances, with the added benefit of tunability via electrostatic gating. This study demonstrates that graphene plasmons can significantly enhance light-matter interactions, leading to unprecedented high decay rates of quantum emitters, large vacuum Rabi splittings, and high extinction cross sections in graphene structures. The research highlights the potential of graphene plasmonics for applications in cavity quantum electrodynamics and the development of single-molecule, single-plasmon devices. Graphene's exceptional electronic and mechanical properties, combined with its ability to be tuned via electrostatic gating, make it an attractive alternative to traditional metal plasmonics. The study also shows that graphene plasmons can be confined to volumes much smaller than the diffraction limit, enabling strong light-matter interactions. The paper discusses the optical response of graphene, focusing on its conductivity and the role of electron-hole pair excitations. It also explores the properties of plasmons in homogeneous graphene, emphasizing the extraordinary confinement of these plasmons. The study further examines the strong coupling between plasmons and quantum emitters, demonstrating that graphene can significantly enhance the decay rate of emitters into plasmons. The research also investigates the use of graphene nanoribbons and nanodisks to achieve even stronger light-matter interactions. These structures offer enhanced field confinement and efficient coupling with far-field light. The study shows that graphene nanodisks can achieve high-quality factors and large Purcell factors, making them ideal for quantum optical applications. The paper concludes that graphene plasmonics has the potential to revolutionize the field of quantum optics, enabling the development of advanced optoelectronic devices with enhanced light-matter interactions. The results suggest that graphene plasmonics could lead to the creation of quantum networks and simulations of strongly-interacting systems. The study also highlights the potential of graphene plasmonics for applications in optical sensing, photodetectors, and other optoelectronic devices.Graphene plasmonics offers a promising platform for strong light-matter interactions due to its unique properties. Unlike traditional noble-metal plasmons, graphene plasmons exhibit enhanced confinement and longer propagation distances, with the added benefit of tunability via electrostatic gating. This study demonstrates that graphene plasmons can significantly enhance light-matter interactions, leading to unprecedented high decay rates of quantum emitters, large vacuum Rabi splittings, and high extinction cross sections in graphene structures. The research highlights the potential of graphene plasmonics for applications in cavity quantum electrodynamics and the development of single-molecule, single-plasmon devices. Graphene's exceptional electronic and mechanical properties, combined with its ability to be tuned via electrostatic gating, make it an attractive alternative to traditional metal plasmonics. The study also shows that graphene plasmons can be confined to volumes much smaller than the diffraction limit, enabling strong light-matter interactions. The paper discusses the optical response of graphene, focusing on its conductivity and the role of electron-hole pair excitations. It also explores the properties of plasmons in homogeneous graphene, emphasizing the extraordinary confinement of these plasmons. The study further examines the strong coupling between plasmons and quantum emitters, demonstrating that graphene can significantly enhance the decay rate of emitters into plasmons. The research also investigates the use of graphene nanoribbons and nanodisks to achieve even stronger light-matter interactions. These structures offer enhanced field confinement and efficient coupling with far-field light. The study shows that graphene nanodisks can achieve high-quality factors and large Purcell factors, making them ideal for quantum optical applications. The paper concludes that graphene plasmonics has the potential to revolutionize the field of quantum optics, enabling the development of advanced optoelectronic devices with enhanced light-matter interactions. The results suggest that graphene plasmonics could lead to the creation of quantum networks and simulations of strongly-interacting systems. The study also highlights the potential of graphene plasmonics for applications in optical sensing, photodetectors, and other optoelectronic devices.