Strip-Loaded Nanophotonic Interfaces for Resonant Coupling and Single-Photon Routing
- URL: http://arxiv.org/abs/2408.02372v1
- Date: Mon, 5 Aug 2024 10:53:20 GMT
- Title: Strip-Loaded Nanophotonic Interfaces for Resonant Coupling and Single-Photon Routing
- Authors: Katharine Snow, Fatemeh Moradiani, Hamidreza Siampour,
- Abstract summary: We report on the design and simulation of strip-loaded nanophotonic interfaces aimed at improving resonant coupling and photon routing efficiency.
In our design, the guided mode is confined within a plane by a high-index thin film and is loosely confined laterally by a lower index strip.
We propose a polymer-based Bragg grating cavity and ring resonator that achieve near-optimal mode volumes and high Q-factors.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We report on the design and simulation of strip-loaded nanophotonic interfaces aimed at improving resonant coupling and photon routing efficiency. In our design, the guided mode is confined within a plane by a high-index thin film and is loosely confined laterally by a lower index strip. Using a hydrogen silsesquioxane (HSQ) strip, titanium dioxide core, and silicon dioxide substrate, we optimise the waveguide dimensions for maximum lateral confinement of light. Specifically, we propose a polymer-based Bragg grating cavity and ring resonator that achieve near-optimal mode volumes and high Q-factors. Our simulations suggest that a cavity with a mode volume of V_{\text{eff}} \approx 7.0 \left(\frac{\lambda}{n}\right)^3 and a Q-factor of 7000 can produce photons with 97% indistinguishability at 4K. Additionally, we investigate directional couplers for efficient photon routing, comparing photonic and plasmonic material structures. While pure photonic structures demonstrate lower loss and improved quality factors, they face practical limitations in terms of bending radius. Conversely, plasmonic structures offer shorter bending radii but higher propagation losses. This research lays the groundwork for future nanophotonic designs, aiming to enhance photon generation and routing capabilities for quantum optical applications.
Related papers
- Scalable construction of hybrid quantum photonic cavities [0.0]
We introduce a concept that generates a finely tunable PhC cavity at a select wavelength between two heterogeneous optical materials.
The cavity is formed by stamping a hard-to-process material with simple waveguide geometries on top of an easy-to-process material.
We simulate our concept for the particularly challenging design problem of multiplexed quantum repeaters based on arrays of cavity-coupled diamond color centers.
arXiv Detail & Related papers (2024-10-04T18:36:39Z) - Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature.
We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs.
Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
arXiv Detail & Related papers (2024-05-03T23:02:30Z) - Fabrication of Sawfish photonic crystal cavities in bulk diamond [0.0]
"Sawfish" cavities are proposed to enhance the emission rate by a factor of 46 and couple photons into a single-mode fiber with an efficiency of 88%.
The presented process allows for the fabrication of fully suspended devices with a total length of 20.5 $mu$m and features size as small as 40 nm.
arXiv Detail & Related papers (2023-11-07T00:05:46Z) - Van der Waals Materials for Applications in Nanophotonics [49.66467977110429]
We present an emerging class of layered van der Waals (vdW) crystals as a viable nanophotonics platform.
We extract the dielectric response of 11 mechanically exfoliated thin-film (20-200 nm) van der Waals crystals, revealing high refractive indices up to n = 5.
We fabricate nanoantennas on SiO$$ and gold utilizing the compatibility of vdW thin films with a variety of substrates.
arXiv Detail & Related papers (2022-08-12T12:57:14Z) - Design and fabrication of ridge waveguide-based nanobeam cavities for
on-chip single-photon sources [3.715638371286535]
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.
arXiv Detail & Related papers (2022-03-21T12:33:16Z) - Topologically Protecting Squeezed Light on a Photonic Chip [58.71663911863411]
Integrated photonics offers an elegant way to increase the nonlinearity by confining light strictly inside the waveguide.
We experimentally demonstrate the topologically protected nonlinear process of spontaneous four-wave mixing enabling the generation of squeezed light on a silica chip.
arXiv Detail & Related papers (2021-06-14T13:39:46Z) - Inverse-designed photon extractors for optically addressable defect
qubits [48.7576911714538]
Inverse-design optimization of photonic devices enables unprecedented flexibility in tailoring critical parameters of a spin-photon interface.
Inverse-designed devices will enable realization of scalable arrays of single-photon emitters, rapid characterization of new quantum emitters, sensing and efficient heralded entanglement schemes.
arXiv Detail & Related papers (2020-07-24T04:30:14Z) - Tunable quantum photonics platform based on fiber-cavity enhanced single
photon emission from two-dimensional hBN [52.915502553459724]
In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity.
We achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling.
Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
arXiv Detail & Related papers (2020-06-23T14:20:46Z) - The NV centre coupled to an ultra-small mode volume cavity: a high
efficiency source of indistinguishable photons at 200 K [0.15749416770494706]
atom-like systems burdened by phonon sidebands and broadening due to surface charges.
We design a silicon nitride cavity that allows 99 % efficient extraction of photons at 200 K.
Our work points towards scalable fabrication of non-cryogenic atom-like efficient sources of indistinguishable photons.
arXiv Detail & Related papers (2020-05-27T16:36:06Z) - Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
Integrated photonics is a robust platform for quantum information processing.
Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive.
Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
arXiv Detail & Related papers (2020-05-19T16:46:44Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.