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Heteroplasmon hybridization in stacked complementary plasmo-photonic crystals
Masanobu Iwanaga1, Bongseok Choi
1National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan.
Nano Letters
|February 17, 2015
Summary
Researchers created novel plasmo-photonic crystals that efficiently trap light by coupling plasmonic and photonic resonances. These stacked complementary crystals exhibit unique hybrid modes with significant energy splitting, revealing new plasmo-photonic phenomena.
Area of Science:
- Condensed matter physics
- Photonics and plasmonics
Background:
- Plasmo-photonic crystals offer unique light-matter interactions by combining plasmonic and photonic resonances.
- Efficient light-trapping and high-quality factor resonances are crucial for advanced optical devices.
Purpose of the Study:
- To construct and investigate plasmo-photonic crystals with coupled plasmonic and photonic guided resonances.
- To explore the emergence and characteristics of heteroplasmon hybrid modes in stacked complementary (SC) plasmo-photonic crystals.
Main Methods:
- Numerical simulations and experimental fabrication of SC plasmo-photonic crystals.
- Analysis of resonant electromagnetic-field distributions to identify hybrid modes.
- Measurement of energy splitting between hybrid modes.
Main Results:
- Successful construction of plasmo-photonic crystals demonstrating efficient light-trapping.
- Observation of heteroplasmon hybrid modes arising from coupled plasmonic and photonic resonances.
- Significant energy splitting of 300 meV observed between the two hybrid modes.
- Identification of a series of plasmo-photonic modes within the SC crystals.
Conclusions:
- Heteroplasmon hybrid modes can emerge in SC plasmo-photonic crystals due to coupled resonances.
- The observed energy splitting provides evidence for distinct heteroplasmon origins of the hybrid modes.
- SC plasmo-photonic crystals offer a promising platform for controlling light-matter interactions and exploring novel optical phenomena.
Keywords:
heteroplasmonnanoimprint lithographyplasmo-photonic crystalsplasmon hybridizationplasmonics
