期刊
ADVANCED MATERIALS
卷 34, 期 11, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202108120
关键词
absorption cross-section; lithography; nanofabrication; photonics; plasmonics; quantum optics; single photons
类别
资金
- DIM NanoK funding through the project PATCH
- ANR DELIGHT
Single-emitter plasmonic patch antennas are room-temperature deterministic single-photon sources that exhibit highly accelerated and directed single-photon emission. The deterministic room-temperature in situ optical lithography protocol is used to position the plasmonic structure nondestructively on any selected single-emitter with 3D nanoscale control. The presented antenna induces a 1000-fold effective increase in the absorption cross-section and shows nonlinearly enhanced emission under high pumping.
Single-emitter plasmonic patch antennas are room-temperature deterministic single-photon sources, which exhibit highly accelerated and directed single-photon emission. However, for efficient operation these structures require 3D nanoscale deterministic control of emitter positioning within the device, which is a demanding task, especially when emitter damage during fabrication is a major concern. To overcome this limitation, the deterministic room-temperature in situ optical lithography protocol uses spatially modulated light to position a plasmonic structure nondestructively on any selected single-emitter with 3D nanoscale control. Herein, the emission statistics of such plasmonic antennas that embed a deterministically positioned single colloidal CdSe/CdS quantum dot, which highlight acceleration and brightness of emission, are analyzed. It is demonstrated that the presented antenna induces a 1000-fold effective increase in the absorption cross-section, and, under high pumping, these antennas show nonlinearly enhanced emission.
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