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Approach for imaging optical super-resolution based on Sb films

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3 Author(s)
Ou, Ding Rong ; Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China ; Zhu, Jing ; Jia Hao Zhao

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Super-resolution technology has been applied to overcome the optical diffraction limit in recent years. In this work, optical super resolution based on Sb films has been studied. Experimental results show that the amorphous Sb–SR will considerably concentrate the energy into the center of the laser beam, while the crystal Sb–SR will not. Considering Sb as a semiconductor with a small energy gap, a three-order nonlinear response of surface plasmons is deduced to explain the phenomenon. Estimation is made and the calculated results are in agreement with the experimental results. © 2003 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:82 ,  Issue: 10 )