상세정보
학술지
Long-range Surface Plasmon Polaritons on Asymmetric Double-electrode Structures
- 발행일
- 200804
- 출처
- Applied Physics Letters, v.92 no.16, pp.1-3
- ISSN
- 0003-6951
- 출판사
- American Institute of Physics (AIP)
- 협약과제
- 08MB2200, 휴대 단말기용 나노 플렉시블 광전배선 모듈, 주정진
- 초록
- An asymmetric double-electrode structure composed of metal strips separated by a dielectric core layer, all on a metal slab, is proposed as a long-range surface plasmon-polariton (LR-SPP) waveguide. LR-SPP modes on asymmetric structures, including straight, S-bended, and Y-branched strips, are found by far-field measurement to be consistent with theoretical estimates. The proposed structure is inherently free from a symmetry requirement on dielectric constants between the core and cladding materials, therefore, an asymmetric double-electrode waveguide which substitutes a nonlinear medium or biofluid for the core dielectric may be essential to realization of SPP nonlinear devices or biosensors in a long-range manner. © 2008 American Institute of Physics.
- KSP 제안 키워드
- Asymmetric structure, Cladding materials, Dielectric Constant, Electrode structure, Far-field measurement, Long-range surface plasmon polaritons, Nonlinear devices, Nonlinear medium, Surface plasmon(SP), Theoretical estimates, Y-branched