Shafi, KM and Yalla, R and Nayak, KP (2023) Bright and Polarized Fiber In-Line Single-Photon Source Based on Plasmon-Enhanced Emission into Nanofiber Guided Modes. In: Physical Review Applied, 19 (3).
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Abstract
We demonstrate a bright and polarized fiber in-line single-photon source based on plasmon-enhanced emission of colloidal single quantum dots into an optical nanofiber. We show that emission properties of single quantum dots can be strongly enhanced in the presence of single gold nanorods leading to a bright and strongly polarized single-photon emission. The single photons are efficiently coupled to guided modes of the nanofiber and eventually to a single-mode optical fiber. The brightness (fiber-coupled photon count rate) of the single-photon source is estimated to be 12.2±0.6 MHz, with high single-photon purity g2(0)=0.20±0.04 and degree of polarization as high as 94-97 %. The polarized and fiber-coupled single photons can be implemented for potential applications in quantum photonics. © 2023 American Physical Society.
| Item Type: | Journal Article |
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| Publication: | Physical Review Applied |
| Publisher: | American Physical Society |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Elementary particle sources; Guided electromagnetic wave propagation; Nanocrystals; Nanorods; Optical fibers; Particle beams; Photons; Plasmons; Semiconductor quantum dots, Emission properties; Enhanced Emission; Fiber coupled; Gold nanorod; Guided modes; Optical-; Single photon emission; Single photons; Single quantum dot; Single-photon source, Nanofibers |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 30 Mar 2023 05:58 |
| Last Modified: | 30 Mar 2023 05:58 |
| URI: | https://eprints.iisc.ac.in/id/eprint/81165 |
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