scholarly journals Imaging Properties of Three Dimensional Aperture Near-Field Scanning Optical Microscopy and Optimized Near-Field Fiber Probe Designs

2004 ◽  
Vol 43 (12) ◽  
pp. 8115-8125 ◽  
Author(s):  
Yuan-Fong Chau ◽  
Tzong-Jer Yang ◽  
Din-Ping Tsai
Keyword(s):  
Optical Microscopy ◽  
Near Field ◽  
Three Dimensional ◽  
Fiber Probe ◽  
Scanning Optical Microscopy ◽  
Imaging Properties ◽  
Near Field Scanning

Simulation of Electromagnetic Field Distribution at a Nanowire Probe for Near Field Scanning Optical Microscopy

2008 ◽  
Author(s):  
Nathan P. Malcolm ◽  
Alex J. Heltzel ◽  
Li Shi ◽  
John R. Howell
Keyword(s):  
Optical Microscopy ◽  
Signal To Noise Ratio ◽  
Near Field ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Fdtd Simulation ◽  
Plasmonic Nanoparticle ◽  
Excitation Laser ◽  
Scanning Optical Microscopy ◽  
Near Field Scanning

This work studies a new design of a near field scanning optical microscopy (NSOM) probe based on a ZnO nanowire sub-wavelength waveguide terminated with a plasmonic gold nanoparticle. Three-dimensional finite difference time domain (FDTD) simulation is used to visualize light guiding in the nanowire and near field coupling between the plasmonic nanoparticle and the substrate. The simulation results reveal local field enhancement at the gap between the nanoparticle and a gold substrate when the nanowire axis is tilted from the substrate normal by a small angle. The enhancement occurs only along the cross section plane that is parallel to the polarization of the excitation laser beam. The regime of field enhancement is much smaller than the diameter of the 100 nm plasmonic particle, making the nanowire probe well suited for NSOM with superior spatial resolution and signal to noise ratio compared to the state of the art.

Short fiber probe scheme for tapping-mode tuning fork near-field scanning optical microscopy

2002 ◽  
Author(s):  
Chien W. Huang ◽  
Nien H. Lu ◽  
Chih Y. Chen ◽  
Cheng Feng Yu ◽  
Tsung S. Kao ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
Tuning Fork ◽  
Near Field ◽  
Short Fiber ◽  
Fiber Probe ◽  
Tapping Mode ◽  
Scanning Optical Microscopy ◽  
Near Field Scanning

scholarly journals Removing optical artifacts in near-field scanning optical microscopy by using a three-dimensional scanning mode

1999 ◽  
Vol 86 (5) ◽  
pp. 2785-2789 ◽  
Author(s):  
Claire E. Jordan ◽  
Stephan J. Stranick ◽  
Lee J. Richter ◽  
Richard R. Cavanagh
Keyword(s):  
Optical Microscopy ◽  
Near Field ◽  
Three Dimensional ◽  
Scanning Optical Microscopy ◽  
Near Field Scanning
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