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Guided modes in fiber with left-handed materials
1Science College, Huzhou Teachers College, ZheJiang 313000, China. shenlufa0410@sina.com
Summary
This study explores optical fiber modes using left-handed materials, revealing novel three-value properties for surface modes and new propagation characteristics for oscillating guided modes.
Area of Science:
- Optics and Photonics
- Materials Science
- Condensed Matter Physics
Background:
- Optical fibers with left-handed material (LHM) cores and right-handed material (RHM) claddings exhibit unique electromagnetic properties.
- Understanding guided and surface modes is crucial for developing advanced optical devices.
Purpose of the Study:
- To investigate oscillating guided modes and surface modes in LHM core/RHM cladding optical fibers.
- To analyze the dispersion characteristics and effective refractive index properties of these modes.
- To identify and report novel propagation phenomena.
Main Methods:
- Utilized dispersion equations for TE, TM, EH, and HE guided modes.
- Plotted dispersion curves considering material dispersion based on an experimental model.
- Analyzed normalized power fluxes for TE modes.
Main Results:
- Discovered that TE(TM) oscillating guided modes' surface modes can connect, while EH connects with HE surface modes.
- Observed a novel three-value property for surface modes in LHM waveguides, distinct from known double-value properties of guided modes.
- Identified new propagation characteristics for TE oscillating guided modes and surface modes.
Conclusions:
- The study elucidates complex mode interactions and refractive index behaviors in LHM optical fibers.
- A novel three-value property for surface modes in LHM waveguides is reported, expanding knowledge of LHM photonics.
- New propagation characteristics offer potential for innovative optical fiber applications.
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