Demonstration of self-imaging effect without paraxial approximation

Wangshi Zhao; Xiaoyue Huang; Zhaolin Lu

doi:10.1117/12.908209

22 February 2012 Demonstration of self-imaging effect without paraxial approximation

Wangshi Zhao, Xiaoyue Huang, Zhaolin Lu

Author Affiliations +

Proceedings Volume 8269, Photonic and Phononic Properties of Engineered Nanostructures II; 82692B (2012) https://doi.org/10.1117/12.908209
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

The classical self-imaging effect can be observed for a periodic object with a pitch larger than the diffraction limit of an imaging system. In this paper, we show that the self-imaging effect can be achieved in an indefinite metamaterial even when the period is much smaller than the diffraction limit in both two-dimensional and three-dimensional numerical simulations, where the paraxial approximation is not applied. This is attributed to the evanescent waves, which carry the information about subwavelength features of the object, can be converted into propagating waves and then conveyed to far field by the metamaterial, where the permittivity in the propagation direction is negative while the transverse ones are positive. The indefinite metamaterial can be realized and approximated by a system of thin, alternating multilayer metal and insulator (MMI) stack. As long as the loss of the metamaterial is small enough, deep subwavelength image size can be achieved.

Citation Download Citation

Wangshi Zhao, Xiaoyue Huang, and Zhaolin Lu "Demonstration of self-imaging effect without paraxial approximation", Proc. SPIE 8269, Photonic and Phononic Properties of Engineered Nanostructures II, 82692B (22 February 2012); https://doi.org/10.1117/12.908209

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE