Simultaneous propagation of two Dyakonov–Tamm waves guided by the planar interface created in a chiral sculptured thin film by a sudden change of vapor flux direction

2010 ◽  
Vol 374 (34) ◽  
pp. 3370-3372 ◽  
Author(s):  
Jun Gao ◽  
Akhlesh Lakhtakia ◽  
Mingkai Lei
Keyword(s):  
Thin Film ◽  
Sudden Change ◽  
Planar Interface ◽  
Vapor Flux ◽  
Sculptured Thin Film ◽  
Chiral Sculptured Thin Film

On the surface plasmon polariton wave at the planar interface of a metal and a chiral sculptured thin film

2008 ◽  
Vol 465 (2101) ◽  
pp. 87-107 ◽  
Author(s):  
John A Polo ◽  
Akhlesh Lakhtakia
Keyword(s):  
Thin Film ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Planar Interface ◽  
Minimum Value ◽  
Polariton Wave ◽  
Wide Range ◽  
Sculptured Thin Film ◽  
Plasmon Polariton ◽  
Chiral Sculptured Thin Film

The solution of a dispersion equation indicates the theoretical existence of multiple modes of surface plasmon polariton wave propagation at the planar interface of a metal and a chiral sculptured thin film (STF). One mode appears to occur over a wide range of the structural period of the chiral STF, while all other modes exist only above some minimum value of the structural period, the minimum value being different for each mode. In order to excite the different modes, the interface can be incorporated in the commonplace Kretschmann configuration, for which our calculations show that the efficient excitation of different modes would require different numbers of structural periods of the chiral STF.

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