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Negative refraction at telecommunication wavelengths through plasmon-photon hybridization
Optics Express
|December 25, 2015
Summary
We demonstrate negative refraction using plasmon-photon hybridization in a microcavity. A doped semiconductor enables tunable resonance, achieving negative dispersion at telecommunication wavelengths in an all-ZnO cavity.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Negative refraction enables novel optical phenomena.
- Plasmon-photon hybridization offers tunable optical properties.
Purpose of the Study:
- To demonstrate negative refraction at telecommunication wavelengths.
- To explore plasmon-photon hybridization using a doped semiconductor in a microcavity.
- To achieve tunable dispersion for optical applications.
Main Methods:
- Fabrication of a microcavity with metallic mirrors.
- Utilizing a heavily doped semiconductor for plasmonic excitations.
- Achieving resonance between plasmonic excitations and infrared photon modes.
- Tuning the dispersion of hybrid cavity modes.
Main Results:
- Demonstrated negative refraction at telecommunication wavelengths.
- Achieved tunable plasmon-photon hybridization via a doped semiconductor.
- Showcased wide adjustment of hybrid cavity mode dispersion.
- Confirmed negative dispersion and negative refraction in an all-ZnO monolithic cavity.
Conclusions:
- Plasmon-photon hybridization in microcavities provides a versatile platform for achieving negative refraction.
- Doped semiconductors offer a tunable alternative to conventional metals for plasmonic applications.
- The all-ZnO monolithic cavity demonstrates potential for telecommunication wavelength devices.
