Superresolution technology for small diffraction spot size in the far field

Jia Jia; Changhe Zhou; Wendong Xu; Peng Xi; Liren Liu

doi:10.1117/12.451948

6 November 2002 Superresolution technology for small diffraction spot size in the far field

Jia Jia, Changhe Zhou, Wendong Xu, Peng Xi, Liren Liu

Proceedings Volume 4825, High-Resolution Wavefront Control: Methods, Devices, and Applications IV; (2002) https://doi.org/10.1117/12.451948
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

In this paper, we use diffractive superresolution technology to design a pure-phase plate for realizing the smaller spot size than the usual Airy spot size. We have calculated 2,3,4,5 circulation zones for optimizing the highest energy compression (Strelratio) with the constraint of the Firstzero value G=0.8. Numerical results show that the 2-circular zone pure-phase plate can yield the highest Strelratio (S=0.59) with the constraint of G=0.8.The 3-circular zone pure-phase plate with the respective phases of φ₁φ₂φ₃ has also been calculated. At the same time the 4,5 circular zone binary phase (0,π) plates are calculated to yield the result of S = 0.57 with G=0.8. The usage of the superresolution phase plate aims to realize the smaller spot size instead of the usage of the higher numerical aperture lens, which is the main advantage of this superresolution technology. Therefore, in this constraint of G=0.8, we have selected the 2-circular zone with binary phase for ease of fabrication. At last, we use a 50 nanometer fiber tip detector to scan the diffractive superresolution light spot in order to compare it with the Airy spot. Detailed experiments are presented.

Citation Download Citation

Jia Jia, Changhe Zhou, Wendong Xu, Peng Xi, and Liren Liu "Superresolution technology for small diffraction spot size in the far field", Proc. SPIE 4825, High-Resolution Wavefront Control: Methods, Devices, and Applications IV, (6 November 2002); https://doi.org/10.1117/12.451948

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

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Super resolution

Diffraction

Binary data

Phase shift keying

Confocal microscopy

Microscopy

Photoresist materials

Show All Keywords

Keywords/Phrases

Search In:

Publication Years