Researches on far-field super-resolution imaging based on time-reversed electromagnetics at UESTC

2016 ◽  
Author(s):  
Bing-Zhong Wang ◽  
Ren Wang ◽  
Zhi-Shuang Gong ◽  
Qiang Gao ◽  
Xiao-Hua Wang
Keyword(s):  
Super Resolution ◽  
Far Field ◽  
Resolution Imaging

scholarly journals Optimising superoscillatory spots for far-field super-resolution imaging

2018 ◽  
Vol 26 (7) ◽  
pp. 8095 ◽  
Author(s):  
Katrine S. Rogers ◽  
Konstantinos N. Bourdakos ◽  
Guang Hui Yuan ◽  
Sumeet Mahajan ◽  
Edward T. F. Rogers
Keyword(s):  
Super Resolution ◽  
Far Field ◽  
Resolution Imaging

scholarly journals Demonstration of nanoimprinted hyperlens array for high-throughput sub-diffraction imaging

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Minseop Byun ◽  
Dasol Lee ◽  
Minkyung Kim ◽  
Yangdoo Kim ◽  
Kwan Kim ◽  
...  
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Medical Science ◽  
Super Resolution ◽  
Fabrication Process ◽  
Far Field ◽  
Resolution Limit ◽  
Imaging Science ◽  
Diffraction Imaging ◽  
Resolution Imaging

Abstract Overcoming the resolution limit of conventional optics is regarded as the most important issue in optical imaging science and technology. Although hyperlenses, super-resolution imaging devices based on highly anisotropic dispersion relations that allow the access of high-wavevector components, have recently achieved far-field sub-diffraction imaging in real-time, the previously demonstrated devices have suffered from the extreme difficulties of both the fabrication process and the non-artificial objects placement. This results in restrictions on the practical applications of the hyperlens devices. While implementing large-scale hyperlens arrays in conventional microscopy is desirable to solve such issues, it has not been feasible to fabricate such large-scale hyperlens array with the previously used nanofabrication methods. Here, we suggest a scalable and reliable fabrication process of a large-scale hyperlens device based on direct pattern transfer techniques. We fabricate a 5 cm × 5 cm size hyperlenses array and experimentally demonstrate that it can resolve sub-diffraction features down to 160 nm under 410 nm wavelength visible light. The array-based hyperlens device will provide a simple solution for much more practical far-field and real-time super-resolution imaging which can be widely used in optics, biology, medical science, nanotechnology and other closely related interdisciplinary fields.

Far-field super-resolution imaging using near-field illumination by micro-fiber

2013 ◽  
Vol 102 (1) ◽  
pp. 013104 ◽  
Author(s):  
Xiang Hao ◽  
Xu Liu ◽  
Cuifang Kuang ◽  
Yanghui Li ◽  
Yulong Ku ◽  
...  
Keyword(s):  
Near Field ◽  
Super Resolution ◽  
Far Field ◽  
Resolution Imaging

scholarly journals Far-field unlabeled super-resolution imaging with superoscillatory illumination

APL Photonics ◽  
2020 ◽  
Vol 5 (6) ◽  
pp. 066107 ◽  
Author(s):  
Edward T. F. Rogers ◽  
Shmma Quraishe ◽  
Katrine S. Rogers ◽  
Tracey A. Newman ◽  
Peter J. S. Smith ◽  
...  
Keyword(s):  
Super Resolution ◽  
Far Field ◽  
Resolution Imaging

Evanescent-Wave Reconstruction in Time Reversal System

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 285-292 ◽  
Author(s):  
Rui Zang ◽  
Bing-Zhong Wang ◽  
Shuai Ding ◽  
Zhi-Shuang Gong
Keyword(s):  
Time Reversal ◽  
Evanescent Wave ◽  
Super Resolution ◽  
New Method ◽  
Far Field ◽  
Initial Wave ◽  
Calculation Results ◽  
Resolution Imaging ◽  
Wave Conversion ◽  
Sub Wavelength

AbstractThe evanescent wave re-construction performance in the time reversal system with periodic sub-wavelength grating is studied in this paper. Both the analysis and calculation results show that the evanescent components of the initial wave can’t be re-constructed directly by far field time reversal processing. The results indicate the uncertainty of the super-resolution performance of the time reversal technique with randomly arranged scatters. A new method to achieve super-resolution imaging by using evanescent-to-propagation wave conversion also been proposed at the end of this paper.

Super-resolution imaging by metamaterial-based compressive spatial-to-spectral transformation

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18268-18274 ◽  
Author(s):  
Qian Ma ◽  
Huan Hu ◽  
Eric Huang ◽  
Zhaowei Liu
Keyword(s):  
Super Resolution ◽  
Far Field ◽  
Spectral Transformation ◽  
Imaging Approach ◽  
Resolution Imaging

We present a new far-field super-resolution imaging approach called compressive spatial to spectral transformation microscopy (CSSTM).

scholarly journals Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate

2017 ◽  
Vol 9 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Zhi-Shuang Gong ◽  
Bing-Zhong Wang ◽  
Yu Yang ◽  
Hong-Cheng Zhou ◽  
Shuai Ding ◽  
...  
Keyword(s):  
Time Reversal ◽  
Super Resolution ◽  
Far Field ◽  
Resolution Imaging
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