Optical spatiotemporal differentiator using bilayer plasmonic grating

2021 ◽  
Author(s):  
Xinliang Zhang ◽  
Chenyuan XU ◽  
Yilun Wang ◽  
Cheng Zhang ◽  
Beatrice Dagens
Keyword(s):  
Plasmonic Grating

scholarly journals Double moiré localized plasmon structured illumination microscopy

Nanophotonics ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Ruslan Röhrich ◽  
A. Femius Koenderink
Keyword(s):  
Near Field ◽  
Super Resolution ◽  
Reconstruction Algorithm ◽  
Structured Illumination ◽  
Structured Illumination Microscopy ◽  
Experimental Realization ◽  
Spatial Frequencies ◽  
Wide Range ◽  
Localized Plasmon ◽  
Plasmonic Grating

AbstractStructured illumination microscopy (SIM) is a well-established fluorescence imaging technique, which can increase spatial resolution by up to a factor of two. This article reports on a new way to extend the capabilities of structured illumination microscopy, by combining ideas from the fields of illumination engineering and nanophotonics. In this technique, plasmonic arrays of hexagonal symmetry are illuminated by two obliquely incident beams originating from a single laser. The resulting interference between the light grating and plasmonic grating creates a wide range of spatial frequencies above the microscope passband, while still preserving the spatial frequencies of regular SIM. To systematically investigate this technique and to contrast it with regular SIM and localized plasmon SIM, we implement a rigorous simulation procedure, which simulates the near-field illumination of the plasmonic grating and uses it in the subsequent forward imaging model. The inverse problem, of obtaining a super-resolution (SR) image from multiple low-resolution images, is solved using a numerical reconstruction algorithm while the obtained resolution is quantitatively assessed. The results point at the possibility of resolution enhancements beyond regular SIM, which rapidly vanishes with the height above the grating. In an initial experimental realization, the existence of the expected spatial frequencies is shown and the performance of compatible reconstruction approaches is compared. Finally, we discuss the obstacles of experimental implementations that would need to be overcome for artifact-free SR imaging.

Asymmetric plasmonic grating for optical sensing of thin layers of organic materials

2011 ◽  
Vol 160 (1) ◽  
pp. 1056-1062 ◽  
Author(s):  
M. Grande ◽  
R. Marani ◽  
F. Portincasa ◽  
G. Morea ◽  
V. Petruzzelli ◽  
...  
Keyword(s):  
Organic Materials ◽  
Optical Sensing ◽  
Thin Layers ◽  
Plasmonic Grating

Optimization of 1D Plasmonic Grating of Nanostructured Devices for the Investigation of Plasmonic Bandgap

Plasmonics ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 775-783 ◽  
Author(s):  
Tahir Iqbal ◽  
Saba Khalil ◽  
Mohsin Ijaz ◽  
Khalid Nadeem Riaz ◽  
Muhammad Isa Khan ◽  
...  
Keyword(s):  
Plasmonic Grating

2D Surface Plasmonic Grating Optical Absorber Based on Air Disk Strings

2015 ◽  
Vol 21 (4) ◽  
pp. 370-379
Author(s):  
冀敏 JI Min ◽  
杨荣草 YANG Rong-cao ◽  
薛文瑞 XUE Wen-rui
Keyword(s):  
Plasmonic Grating

scholarly journals A fluid-based active plasmonic grating filter

AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015147
Author(s):  
Jun Wu ◽  
Yaqiong Du ◽  
Jun Xia ◽  
Tong Zhang ◽  
Wei Lei ◽  
...  
Keyword(s):  
Plasmonic Grating

scholarly journals Plasmonic grating as a nonlinear converter-coupler

2012 ◽  
Vol 20 (2) ◽  
pp. 1392 ◽  
Author(s):  
Nahid Talebi ◽  
Mahmoud Shahabadi ◽  
Worawut Khunsin ◽  
Ralf Vogelgesang
Keyword(s):  
Plasmonic Grating ◽  
Nonlinear Converter

Wavelength Selective Plasmonic Grating for CO2 Gas Sensing Based on Nondispersive Infrared

2018 ◽  
Author(s):  
S. Yahagi ◽  
S. Kumagai ◽  
K. Masuno ◽  
M. Ishii ◽  
M. Sasaki
Keyword(s):  
Gas Sensing ◽  
Plasmonic Grating
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