Dispersion of surface plasmon-polaritons in weakly periodic structures

2016 ◽  
Author(s):  
Nikolay S. Panamarev ◽  
Valeriy A. Donchenko ◽  
Aleksey A. Zemlyanov ◽  
Ignatiy V. Samokhvalov ◽  
Anna N. Panamaryova ◽  
...  
2004 ◽  
Vol 18 (23) ◽  
pp. 1181-1188 ◽  
Author(s):  
XIANGANG LUO ◽  
HAO WANG ◽  
JIEPING SHI ◽  
HANMIN YAO

The transmission properties of rectangular one-dimensional unperforated metallic periodic structures for frequencies close to the surface plasmon band are investigated experimentally and theoretically. The results reveal that it is possible to obtain unexpectedly large transmissions through thick unperforated metallic structures. The mechanisms of enhanced transmissions are attributed to resonant excitations of three kinds of plasmon radiations: coupled surface plasmon polaritons, horizontal localized groove plasmon mode, and vertical localized groove plasmons mode. Once the surface plasmon polaritons and the vertical groove plasmon modes are excited simultaneously, the transmission approaches to maximum at the coincident condition.


2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Munazza Zulfiqar Ali

The transmission of surface plasmon polaritons through a one-dimensional periodic structure is considered theoretically by using the transfer matrix approach. The periodic structure is assumed to have alternate left-handed metamaterial and dielectric layers. Both transverse electric and transverse magnetic modes of surface plasmon polaritons exist in this structure. It is found that, for nonlinear wave propagation, tunneling structures are formed to transform nontransmitting frequencies into transmitting frequencies and hence transmission bistability is observed. It is further observed that the structure shows sensitivity with respect to the polarization of the electromagnetic field for this phenomenon.


2021 ◽  
Vol 7 (19) ◽  
pp. eabe8087
Author(s):  
Lin Xiong ◽  
Yutao Li ◽  
Minwoo Jung ◽  
Carlos Forsythe ◽  
Shuai Zhang ◽  
...  

Efficient control of photons is enabled by hybridizing light with matter. The resulting light-matter quasi-particles can be readily programmed by manipulating either their photonic or matter constituents. Here, we hybridized infrared photons with graphene Dirac electrons to form surface plasmon polaritons (SPPs) and uncovered a previously unexplored means to control SPPs in structures with periodically modulated carrier density. In these periodic structures, common SPPs with continuous dispersion are transformed into Bloch polaritons with attendant discrete bands separated by bandgaps. We explored directional Bloch polaritons and steered their propagation by dialing the proper gate voltage. Fourier analysis of the near-field images corroborates that this on-demand nano-optics functionality is rooted in the polaritonic band structure. Our programmable polaritonic platform paves the way for the much-sought benefits of on-the-chip photonic circuits.


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