Few-emitter lasing in single ultra-small nanocavities

Abstract: Lasers are ubiquitous for information storage, processing, communications, sensing, biological research and medical applications. To decrease their energy and materials usage, a key quest is to miniaturise lasers down to nanocavities. Obtaining the smallest mode volumes demands plasmonic nanocavities, but for these, gain comes from only a single or few emitters. Until now, lasing in such devices was unobtainable due to low gain and high cavity losses. Here, we demonstrate a form of ‘few emitter lasing’ in a plasmonic nanocavity approaching the single-molecule emitter regime. The few-emitter lasing transition significantly broadens, and depends on the number of molecules and their individual locations. We show this non-standard few-emitter lasing can be understood by developing a theoretical approach extending previous weak-coupling theories. Our work paves the way for developing nanolaser applications as well as fundamental studies at the limit of few emitters.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Few-emitter lasing in single ultra-small nanocavities ; volume:13 ; number:14 ; year:2024 ; pages:2679-2686 ; extent:8 ; Nanophotonics ; 13, Heft 14 (2024), 2679-2686 (gesamt 8)

Contributors, Places and Time

• Creator: Ojambati, Oluwafemi S. ; Arnardóttir, Kristín B. ; Lovett, Brendon W. ; Keeling, Jonathan ; Baumberg, Jeremy J.

Further information

• DOI: 10.1515/nanoph-2023-0706
• URN: urn:nbn:de:101:1-2406041538147.344092778905
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:44 AM CEST