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Updated: May 8, 2026

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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Photonic crystal nanofiber using an external grating
Mark Sadgrove1, Ramachandrarao Yalla, Kali P Nayak
1Center for Photonic Innovations, The University of Electro-Communications, Chofu, Japan. mark@cpi.uec.ac.jp
Optics Letters
|August 14, 2013
Summary
We developed a novel photonic crystal nanofiber device by integrating optical nanofibers and gratings. This device exhibits a strong photonic stop band, enabling enhanced light-matter interactions for future optical technologies.
Area of Science:
- Photonics
- Nanotechnology
- Optical Engineering
Background:
- Optical nanofibers offer unique light confinement properties.
- Photonic crystals are crucial for controlling light propagation.
- Integrating these components presents challenges in fabrication and performance.
Purpose of the Study:
- To design and implement a photonic crystal nanofiber device.
- To minimize optical loss and tailor device spectral properties.
- To enable strong light-matter coupling for advanced applications.
Main Methods:
- Fabrication of a device combining an optical nanofiber and a nanofabricated grating.
- Utilizing the finite-difference time-domain (FDTD) method for numerical design and simulation.
- Experimental characterization of the device's optical response.
Main Results:
- Successful implementation of a hybrid photonic crystal nanofiber device.
- Numerical design achieved minimal optical loss and controlled resonant wavelength/bandwidth.
- Experimental results showed a strong photonic stop band, consistent with FDTD predictions.
Conclusions:
- The developed device effectively integrates optical nanofibers and gratings.
- The device demonstrates a significant photonic stop band, validating the design approach.
- This technology holds potential for realizing strong light-matter coupling at the nanoscale.

