Design and fabrication of ridge waveguide-based nanobeam cavities for
on-chip single-photon sources
- URL: http://arxiv.org/abs/2203.10921v1
- Date: Mon, 21 Mar 2022 12:33:16 GMT
- Title: Design and fabrication of ridge waveguide-based nanobeam cavities for
on-chip single-photon sources
- Authors: U\u{g}ur Meri\c{c} G\"ur, Yuhui Yang, Johannes Schall, Ronny Schmidt,
Arsenty Kaganskiy, Yujing Wang, Luca Vannucci, Michael Mattes, Samel
Arslanagi\'c, Stephan Reitzenstein, Niels Gregersen
- Abstract summary: We report on the design of nanohole/nanobeam cavities in ridge waveguides for on-chip, quantum-dot-based single-photon generation.
The results of the microphotoluminescence measurements provide evidence for cavity-enhanced spontaneous emission from the quantum dot.
- Score: 3.715638371286535
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We report on the design of nanohole/nanobeam cavities in ridge waveguides for
on-chip, quantum-dot-based single-photon generation. Our design overcomes
limitations of a low-refractive-index-contrast material platform in terms of
emitter-mode coupling efficiency and yields an outcoupling efficiency of 0.73
to the output ridge waveguide. Importantly, this high coupling efficiency is
combined with broadband operation of 9 nm full-width half-maximum. We provide
an explicit design procedure for identifying the optimum geometrical parameters
according to the developed design. Besides, we fabricate and optically
characterize a proof-of-concept waveguide structure. The results of the
microphotoluminescence measurements provide evidence for cavity-enhanced
spontaneous emission from the quantum dot, thus supporting the potential of our
design for on-chip single-photon sources applications.
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