The role of evanescent waves in three-dimensional near-field imaging

2000 ◽  
Author(s):  
David G. Fischer
Keyword(s):  
Near Field ◽  
Three Dimensional ◽  
Evanescent Waves ◽  
Near Field Imaging ◽  
Field Imaging

Three-Dimensional Finite-Difference Time-Domain Method Modeling of Nanowire Optical Probe

2014 ◽  
Vol 602-605 ◽  
pp. 3359-3362
Author(s):  
Chun Li Zhu ◽  
Jing Li
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Incident Light ◽  
Near Field ◽  
Three Dimensional ◽  
Polarization Direction ◽  
Near Field Imaging ◽  
Difference Time ◽  
Field Imaging

In this paper, output near fields of nanowires with different optical and structure configurations are calculated by using the three-dimensional finite-difference time-domain (3D FDTD) method. Then a nanowire with suitable near field distribution is chosen as the probe for scanning dielectric and metal nanogratings. Scanning results show that the resolution in near-field imaging of dielectric nanogratings can be as low as 80nm, and the imaging results are greatly influenced by the polarization direction of the incident light. Compared with dielectric nanogratings, metal nanogratings have significantly enhanced resolutions when the arrangement of gratings is perpendicular to the polarization direction of the incident light due to the enhancement effect of the localized surface plasmons (SPs). Results presented here could offer valuable references for practical applications in near-field imaging with nanowires as optical probes.

scholarly journals Near-field imaging of light propagation in photonic crystal waveguides: Explicit role of Bloch harmonics

2002 ◽  
Vol 66 (23) ◽  
Author(s):  
Sergey I. Bozhevolnyi ◽  
Valentyn S. Volkov ◽  
Thomas Søndergaard ◽  
Alexandra Boltasseva ◽  
Peter I. Borel ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Near Field ◽  
Photonic Crystal Waveguides ◽  
Near Field Imaging ◽  
Field Imaging

Near-field imaging of the interference pattern of counterpropagating evanescent waves

1999 ◽  
Vol 24 (11) ◽  
pp. 747 ◽  
Author(s):  
Sergey I. Bozhevolnyi ◽  
Elena A. Bozhevolnaya
Keyword(s):  
Interference Pattern ◽  
Near Field ◽  
Evanescent Waves ◽  
Near Field Imaging ◽  
Field Imaging

scholarly journals Efficient Near-Field Imaging Using Cylindrical MIMO Arrays

2021 ◽  
pp. 1-1
Author(s):  
Shiyong Li ◽  
Shuoguang Wang ◽  
Moeness G. Amin ◽  
Guoqiang Zhao
Keyword(s):  
Near Field ◽  
Near Field Imaging ◽  
Mimo Arrays ◽  
Field Imaging
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