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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Optical resonant cavity in a nanotaper.
Sang Hyun Lee1, Takenari Goto, Hiroshi Miyazaki
1Center for Interdisciplinary Research, Tohoku University, Sendai 980-8579, Japan. lees3@ornl.gov
Nano Letters
|May 6, 2010
Summary
Researchers developed a nanoscale optical resonant cavity in a nanotaper, enabling lasing in zinc oxide (ZnO) nanotapers. This breakthrough paves the way for advanced photonic components.
Area of Science:
- Photonics
- Nanotechnology
- Optical Engineering
Background:
- Optical resonant cavities are crucial for laser development.
- Nanotapers offer unique optical properties due to their small dimensions.
Purpose of the Study:
- To describe an optical resonant cavity in a nanotaper.
- To investigate lasing phenomena in nanometer-scale tapers.
Main Methods:
- Experimental fabrication and characterization of nanotapers.
- Finite-difference time-domain (FDTD) simulations to model optical behavior.
Main Results:
- Demonstrated a resonant optical cavity in micro- to nanometer-scale tapers.
- Observed lasing in zinc oxide (ZnO) nanotapers.
- Identified the nanotaper apex acting as a mirror for light reflection.
Conclusions:
- Nanometer-scale tapers with diameters near the wavelength of light can function as effective mirrors.
- The study suggests potential for novel active and passive optical components using resonant optical cavities in nanotapers.
- This research broadens the possibilities within photonic technology.
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