Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 6, Pages 3703-3713Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b08086
Keywords
surface plasmon polaritons; metal-dielectric structures; diffraction limit; photon-plasmon coupling; subwavelength photonic devices
Funding
- National Natural Science Foundation of China [21125315, 21221002]
- Ministry of Science and Technology of China [2012YQ120060]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12020300]
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Metal materials, supporting plasmon modes on their surface, can confine the optical field at deep subwavelength scale, which is desired for photonic integration. However, their intrinsic high Ohmic losses make it impossible to construct the whole circuit solely with the metal materials. Integrating the plasmonic components with dielectric materials may offer a solution to this dilemma. With outstanding active optical performance, these dielectric components not only can greatly reduce the optical losses of the entire circuits but also offer an efficient way to launch the surface plasmon polaritons through the evanescent field coupling or the direct exciton-plasmon conversion. Furthermore, the cooperative interaction between metal and dielectric materials would bring vast novel optical phenomena and functional photonic devices. In this review, the synergistic effects among metal and dielectric materials in various heterostructures as well as their related applications are highlighted. Comprehensive understanding on their synergistic interactions would offer useful guidance for the design and fabrication of the ultracompact novel optical devices.
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