Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission

2012 ◽  
Vol 22 (18) ◽  
pp. 8903 ◽  
Author(s):  
Xuemin Zhang ◽  
Zibo Li ◽  
Shunsheng Ye ◽  
Shan Wu ◽  
Junhu Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Optical Transmission ◽  
Extraordinary Optical Transmission ◽  
Plasmonic Sensors ◽  
Nanohole Arrays

Modulation of extraordinary optical transmission through nanohole arrays using ultrashort laser pulses

2016 ◽  
Author(s):  
Kellie Pearce ◽  
Robin Dehde ◽  
Anika Spreen ◽  
Christian Späth ◽  
Maximilian Wendl ◽  
...  
Keyword(s):  
Optical Transmission ◽  
Laser Pulses ◽  
Extraordinary Optical Transmission ◽  
Ultrashort Laser Pulses ◽  
Nanohole Arrays ◽  
Ultrashort Laser

scholarly journals Investigating the Fabrication Imperfections of Plasmonic Nanohole Arrays and Its Effect on the Optical Transmission Spectra

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Amr M. Mahros ◽  
Marwa M. Tharwat
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Optical Transmission ◽  
Fdtd Method ◽  
Extraordinary Optical Transmission ◽  
Gold Films ◽  
Transmission Spectra ◽  
Nanohole Arrays ◽  
Optical Transmission Spectra ◽  
Difference Time

We investigate the extraordinary optical transmission spectra of thin gold films perforated with imperfect nanohole arrays using the finite difference time domain (FDTD) method. Exponential shapes for the nanohole sidewalls are used. To the best of our knowledge, such investigation of transmission spectra of imperfect nanohole arrays has not previously been demonstrated. It was found that the asymmetry between the two openings of the circular nanoholes or bending to their sidewalls strongly modifies both the intensity and resonance positions of the transmission spectra. Furthermore, the results of this study assist in explaining the technicality of extraordinary optical transmission phenomenon and why some experimental results on transmission differ from those expected.

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