Highly efficient excitation of optical near-field on an apertured fiber probe with an asymmetric structure

1997 ◽  
Vol 71 (13) ◽  
pp. 1756-1758 ◽  
Author(s):  
T. Yatsui ◽  
M. Kourogi ◽  
M. Ohtsu
Keyword(s):  
Near Field ◽  
Asymmetric Structure ◽  
Fiber Probe ◽  
Highly Efficient

Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope

2002 ◽  
Vol 81 (8) ◽  
pp. 1503-1505 ◽  
Author(s):  
D. A. Lapshin ◽  
V. S. Letokhov ◽  
G. T. Shubeita ◽  
S. K. Sekatskii ◽  
G. Dietler
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Interaction Force ◽  
Optical Microscope ◽  
Fiber Probe ◽  
Absolute Value ◽  
The Absolute

Trapping of Nano-Particles Using a Near-Field Optical Fiber Probe

2012 ◽  
Vol 516 ◽  
pp. 90-95
Author(s):  
Bing Hui Liu ◽  
Li Jun Yang ◽  
Yang Wang
Keyword(s):  
Near Field ◽  
Fdtd Method ◽  
Laser Wavelength ◽  
Nano Particles ◽  
Minimum Size ◽  
Fiber Probe ◽  
Circular Shape ◽  
Optical Fiber Probe ◽  
Fibre Probe ◽  
Difference Time

By employing a generalization of the conservation law for momentum using the finite difference time domain (FDTD) method, the feasibility of using a near-field optical fibre probe to create near-field optical trapping is investigated. Numerical results indicate that the scheme is able to trap nanoparticles with diameters of tens of nanometres in a circular shape with lower laser intensity. Using the built system with a tapered metal-coated fibre probe, 120 nm polystyrene particles are trapped in a multi-circular shape with a minimum size of 400 nm. They are at a resolution of λ/7 (λ: laser wavelength) and d (d: tip diameter of fiber probe), respectively.

Experimental study of near-field light collection efficiency of aperture fiber probe at near-infrared wavelengths

2011 ◽  
Vol 50 (29) ◽  
pp. 5710 ◽  
Author(s):  
Nobuhiro Tsumori ◽  
Motoki Takahashi ◽  
Yoshiki Sakuma ◽  
Toshiharu Saiki
Keyword(s):  
Experimental Study ◽  
Near Infrared ◽  
Collection Efficiency ◽  
Near Field ◽  
Light Collection ◽  
Fiber Probe ◽  
Infrared Wavelengths
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