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Updated: May 29, 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
Cavity formation on an optical nanofiber using focused ion beam milling technique
K P Nayak1, Fam Le Kien, Y Kawai
1Center for Photonic Innovations, University of Electro-Communications, Tokyo, Japan.
Optics Express
|September 22, 2011
Summary
Researchers created nanofiber Bragg gratings (NFBGs) for advanced optical devices. These NFBGs enable the development of novel nanofiber cavity systems with unique polarization properties for cavity quantum electrodynamics (QED) applications.
Area of Science:
- Optics and Photonics
- Materials Science
- Quantum Technologies
Background:
- Subwavelength-diameter silica fibers offer unique optical properties.
- Bragg gratings are crucial for controlling light propagation in optical systems.
- Cavity Quantum Electrodynamics (QED) requires highly confined optical fields.
Purpose of the Study:
- To experimentally realize nanofiber Bragg gratings (NFBGs).
- To construct and characterize nanofiber cavity systems using NFBGs.
- To explore the potential of NFBGs for cavity QED applications.
Main Methods:
- Fabrication of periodic nano-grooves on silica nanofibers using focused ion beam milling.
- Integration of NFBGs into nanofiber cavity systems.
- Characterization of cavity finesse, transmission, and polarization selectivity.
Main Results:
- Successful experimental realization of NFBGs.
- Achieved typical finesse (F) of 20-120 and on-resonance transmission of 30-80%.
- Observed polarization-selective modes due to NFBG structural symmetry.
Conclusions:
- NFBGs are effectively fabricated using focused ion beam milling.
- Nanofiber cavities with NFBGs exhibit promising optical characteristics.
- The strong field confinement in these cavities makes them suitable for cavity QED research.
