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Article Dans Une Revue Advanced Materials Année : 2022

Fabrication of Efficient Single‐Emitter Plasmonic Patch Antennas by Deterministic In Situ Optical Lithography using Spatially Modulated Light

Résumé

Single-emitter plasmonic patch antennas are room-temperature deterministic single-photon sources, which exhibit highly accelerated and directed singlephoton 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 roomtemperature in situ optical lithography protocol uses spatially modulated light to position a plasmonic structure nondestructively on any selected singleemitter 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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Dates et versions

hal-04015450 , version 1 (05-03-2023)

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Amit R Dhawan, Michel Nasilowski, Zhiming Wang, Benoît Dubertret, Agnès Maître. Fabrication of Efficient Single‐Emitter Plasmonic Patch Antennas by Deterministic In Situ Optical Lithography using Spatially Modulated Light. Advanced Materials, 2022, INSP-E4, 34 (11), pp.2108120. ⟨10.1002/adma.202108120⟩. ⟨hal-04015450⟩
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