High-efficiency and high-resolution fiber-optic probes for near field imaging and spectroscopy

1997 ◽  
Vol 71 (20) ◽  
pp. 2886-2888 ◽  
Author(s):  
M. N. Islam ◽  
X. K. Zhao ◽  
A. A. Said ◽  
S. S. Mickel ◽  
C. F. Vail
2018 ◽  
Vol 67 (10) ◽  
pp. 2353-2362 ◽  
Author(s):  
Mohamed A. Abou-Khousa ◽  
K. T. Muhammed Shafi ◽  
Xie Xingyu

Author(s):  
Deirdre Kilbane ◽  
Anna-Katherina Mahro ◽  
Pascal Melchior ◽  
Stefan Mathias ◽  
Martin Aeschlimann

2014 ◽  
Vol 104 (25) ◽  
pp. 251118 ◽  
Author(s):  
Florian Peragut ◽  
Jean-Blaise Brubach ◽  
Pascale Roy ◽  
Yannick De Wilde

2010 ◽  
Vol 18 (16) ◽  
pp. 17533 ◽  
Author(s):  
Hyungbae Moon ◽  
Yong-Joong Yoon ◽  
Wan-Chin Kim ◽  
No-Cheol Park ◽  
Kyoung-Su Park ◽  
...  

2006 ◽  
Vol 243 (13) ◽  
pp. 3146-3150 ◽  
Author(s):  
Huihong Qian ◽  
Tobias Gokus ◽  
Neil Anderson ◽  
Lukas Novotny ◽  
Alfred J. Meixner ◽  
...  

Photonics ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 143
Author(s):  
Xin Yu ◽  
Yun Shen ◽  
Guohong Dai ◽  
Liner Zou ◽  
Tailin Zhang ◽  
...  

We experimentally demonstrate that high-resolution terahertz focusing can be realized in planar metalenses, which consist of arrays of different V-shaped antenna units on a silicon substrate. Numerical results show that a larger numerical aperture of metalenses can provide smaller full width at half maximum of field distribution, leading to higher spatial resolution. The measurement of fabricated metalenses samples was performed by a terahertz near-field imaging system, and experimental results agree well with the numerical prediction. Especially for 1.1 THz incident light, when the numerical aperture increases from 0.79 to 0.95, the full width at half maximum correspondingly decreases from 343 μm to 206 μm, offering an improvement of spatial resolution.


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