Plasmon resonance of silver micro–sphere in fiber taper
Citation
Li, J., Li, H., Wang, K., Zhang, X., Yao, C., Zhang, Y., & Yuan, P. (2013, September 9). Plasmon resonance of silver micro–sphere in fiber taper. Optics Express, 21(18), 21414. https://doi.org/10.1364/OE.21.021414
Keywords
- Surface Plasmon Resonance (SPR)
- Silver Micro-sphere
- Hollow Fiber Taper
- Optical Filter
- Optical Sensor
- Transmission Spectra
- Finite Difference Time Domain (FDTD) Method
- Q Factor (Quality Factor)
Brief
This article explores the plasmon resonance phenomenon of a silver micro-sphere inside the air cavity of a hollow fiber taper, finding that the configuration could be used to modulate light distribution for applications in optical filters and sensors.
Summary
This article explores the optical properties of a hollow tapered fiber filled with a silver microsphere. The authors show that the plasmon resonance of the silver microsphere can be used to modulate the light distribution in the fiber.
Here are some of the key findings of the article:
- The transmission spectrum of the fiber taper changes as the silver microsphere is moved along the fiber. This is because the plasmon resonance of the silver microsphere affects the transmission of light through the fiber.
- The authors simulated the transmission spectra of the fiber taper and found that their results matched well with the experimental results.
- The authors also simulated the magnetic field and light intensity distribution in the fiber taper and found that the plasmon resonance of the silver microsphere can be used to modulate the light distribution.
- The variation in light distribution is more obvious in TE polarized light than in TM polarized light.
- The Q value of the fiber taper can be improved by reducing the taper angle of the fiber cone.
The authors suggest that this device has potential applications in optical filters and optical sensors.
Origin: https://opg.optica.org/oe/fulltext.cfm?uri=oe-21-18-21414&id=260915