Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

One-sided Slotted Photonic Crystal Nanofiber for Cavity QED

Subrat Sahu, K. P. Nayak, Rajan Jha

Published Jan 1, 2024• 1 citation
Publisher

Abstract

A one-sided slotted photonic crystal cavity structure on an optical nanofiber is proposed to realize cavity quantum electrodynamics. The device can unidirectionally couple single photons with an efficiency of ~90% into the nanofiber fundamental mode.
DOI
10.1364/cleo_at.2024.jw2a.63

Related papers

Slotted Photonic Crystal Nanofiber for Cavity QED

Subrat Sahu, Rajan Jha

A slotted photonic crystal cavity structure on an optical nanofiber is proposed to realize cavity quantum electrodynamics. The device has a Q-factor of ∼ 1100 and excellent single photon coupling to the nanofiber fundamental mode.

Frontiers in Optics•Jan 1, 2023•3 citations

Single-Sided Optical Nanofiber Cavity: A Workbench for Cavity QED

Subrat Sahu, K. P. Nayak, Rajan Jha

We propose a single-sided optical nanofiber cavity (SSONFC) to facilitate cavity quantum electrodynamics (cQED). The structure is designed and analyzed throughs finite-difference time-domain simulations. A systematic evaluation of the cavity properties and spontaneous emission characteristics has been conducted. Our findings demonstrate that this design significantly enhances the spontaneous emission rate of a single quantum emitter (SQE). A Purcell factor of $\sim 22$ and a maximum unidirectional single-photon coupling efficiency of around $72 \%$ into the ONF’s guided mode can be achieved when an SQE is positioned on the SSONFC surface. Additionally, a high scattering limited quality factor ($Q \sim 2510$) is obtained for the fundamental cavity mode. The structure’s dimensions can be adjusted to accommodate different SQE emission wavelengths, making it a versatile solution. This fiberintegrated single-photon device holds potential for applications in quantum phase switches, and single-photon transistors.

International Conference on Microwave, Optical and Communication Engineering•May 23, 2025•1 citation

Single-sided cavity quantum electrodynamics effects on an optical nanofiber

Ramachandrarao Yalla, K. Muhammed Shafi, K. P. Nayak

We present the single-sided cavity-QED effects for single quantum emitters by combining an asymmetric defect mode grating with an optical nanofiber (ONF). We demonstrate significantly enhanced spontaneous emission into one side of the ONF.

Frontiers in Optics•Jan 1, 2023•0 citations

One-sided composite cavity on an optical nanofiber for cavity QED

Ramachandrarao Yalla, K. Muhammed Shafi, K. P. Nayak +1 more

We demonstrate a one-sided cavity on an optical nanofiber (ONF) using a composite method. The one-sided composite cavity is created by mounting an asymmetric defect mode grating on an ONF. We design the one-sided composite cavity on an ONF to enhance channeling efficiency into one side of ONF while operating from under- to critical- and over-coupling regimes using numerical simulations. Experimentally, we demonstrate coupling characteristics of the one-sided composite cavity, showing good correspondence with simulation results.

arXiv:2202.01408•Applied Physics Letters•Feb 14, 2022•13 citations

Cavity Quantum Electrodynamics on a Nanofiber Using a Composite Photonic Crystal Cavity

Ramachandrarao Yalla, Mark Sadgrove, K. P. Nayak +1 more

We demonstrate cavity QED conditions in the Purcell regime for single quantum emitters on the surface of an optical nanofiber. The cavity is formed by combining an optical nanofiber and a nanofabricated grating to create a composite photonic crystal cavity. By using this technique, significant enhancement of the spontaneous emission rate into the nanofiber guided modes is observed for single quantum dots. Our results pave the way for enhanced on-fiber light-matter interfaces with clear applications to quantum networks.

arXiv:1409.3298•Physical Review Letters•Sep 29, 2014•153 citations

Quantum Photonics With Optical Nanofibers

K. Hakuta

Recent progress of quantum photonics with optical nanofibers is reported. Key issue is to create 1D photonic crystal structures on optical nanofibers. Possible extension of photonic crystal nanofibers to cavity QED is also discussed.

Asia Communications and Photonics Conference•Jan 1, 2014•0 citations
We propose a single-sided optical nanofiber cavity (SSONFC) to facilitate cavity quantum electrodynamics (cQED). The structure is designed and analyzed throughs finite-difference time-domain simulations. A systematic evaluation of the cavity properties and spontaneous emission characteristics has been conducted. Our findings demonstrate that this design significantly enhances the spontaneous emission rate of a single quantum emitter (SQE). A Purcell factor of ∼22\sim 22∼22 and a maximum unidirectional single-photon coupling efficiency of around 72%72 \%72% into the ONF’s guided mode can be achieved when an SQE is positioned on the SSONFC surface. Additionally, a high scattering limited quality factor (Q∼2510Q \sim 2510Q∼2510) is obtained for the fundamental cavity mode. The structure’s dimensions can be adjusted to accommodate different SQE emission wavelengths, making it a versatile solution. This fiberintegrated single-photon device holds potential for applications in quantum phase switches, and single-photon transistors.
We demonstrate a one-sided cavity on an optical nanofiber (ONF) using a composite method. The one-sided composite cavity is created by mounting an asymmetric defect mode grating on an ONF. We design the one-sided composite cavity on an ONF to enhance channeling efficiency into one side of ONF while operating from under- to critical- and over-coupling regimes using numerical simulations. Experimentally, we demonstrate coupling characteristics of the one-sided composite cavity, showing good correspondence with simulation results.
We demonstrate cavity QED conditions in the Purcell regime for single quantum emitters on the surface of an optical nanofiber. The cavity is formed by combining an optical nanofiber and a nanofabricated grating to create a composite photonic crystal cavity. By using this technique, significant enhancement of the spontaneous emission rate into the nanofiber guided modes is observed for single quantum dots. Our results pave the way for enhanced on-fiber light-matter interfaces with clear applications to quantum networks.