# Fabrication of a centimeter-long cavity on a nanofiber for cavity QED

Source: [Fabrication of a centimeter-long cavity on a nanofiber for cavity QED](<https://www.sota2.com/research/paper/68fa35861e209131ce8a25c9>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T21:18:25.257Z

Authors: Jameesh Keloth, K. P. Nayak, K. Hakuta

Published: 2017-01-24T02:58:06.000Z

## Abstract

We report the fabrication of a 1.2 cm long cavity directly on a nanofiber using femtosecond laser ablation. The cavity modes with finesse value in the range 200-400 can still maintain the transmission between 40-60%, which can enable "strong-coupling" regime of cavity QED for a single atom trapped 200 nm away from the fiber surface. For such cavity modes, we estimate the one-pass intra-cavity transmission to be 99.53%. Other cavity modes, which can enable high cooperativity in the range 3-10, show transmission over 60-85% and are suitable for fiber-based single photon sources and quantum nonlinear optics in the "Purcell" regime.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1701.06719>)

[PDF](<https://arxiv.org/pdf/1701.06719.pdf>)