# Photonic crystal formation on optical nanofibers using femtosecond laser ablation technique

Source: [Photonic crystal formation on optical nanofibers using femtosecond laser ablation technique](<https://www.sota2.com/research/paper/68fa309a1e209131ce876d2a>)

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

Data updated: 2025-10-24T18:19:06.741Z

Authors: K. P. Nayak, K. Hakuta

Published: 2012-10-29T08:53:45.000Z

## Abstract

We demonstrate that thousands of periodic nano-craters are fabricated on a subwavelength-diameter tapered optical fiber, an optical nanofiber, by irradiating with just a single femtosecond laser pulse. A key aspect of the fabrication is that the nanofiber itself acts as a cylindrical lens and focuses the femtosecond laser beam on its shadow surface. We also demonstrate that such periodic structures on the nanofiber, act as a 1-D photonic crystal (PhC). Such PhC structures on the nanofiber will strongly enhance the field confinement in such a tapered fiber-based system and may open new avenues in nanophotonics and quantum information technology.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1210.7592>)

[PDF](<https://arxiv.org/pdf/1210.7592.pdf>)