Abstract

Losing the information contained in evanescent waves scattered from an object limits the best achievable resolution in far-field optical imaging systems to about half of the wavelength. This limitation is known as the diffraction limit. In this paper, we propose a new holography-based far-field imaging technique to go beyond the diffraction limit and achieve super-resolution images. In the proposed method, after the recording process, multiple reconstruction processes with appropriate reconstruction waves are performed to extract information about sub-wavelength features of a target object encoded in the evanescent waves scattered from it. It is analytically proved that in the proposed method, by increasing the number of reconstruction steps, the resolution increases. The performance of the method is numerically validated. In numerical analysis, by performing two reconstruction steps, a resolution of 1/14 of the working wavelength is achieved. This resolution can be further improved by increasing the number of reconstruction steps.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Super-resolution and reconstruction of sparse sub-wavelength images

Snir Gazit, Alexander Szameit, Yonina C. Eldar, and Mordechai Segev
Opt. Express 17(26) 23920-23946 (2009)

Interscale mixing microscopy: numerically stable imaging of wavelength- scale objects with sub-wavelength resolution and far field measurements

Sandeep Inampudi, Nicholas Kuhta, and Viktor A. Podolskiy
Opt. Express 23(3) 2753-2763 (2015)

Noniterative sub-pixel shifting super-resolution lensless digital holography

Heejung Lee, JongWu Kim, JunWoo Kim, Philjun Jeon, Seung Ah Lee, and Dugyoung Kim
Opt. Express 29(19) 29996-30006 (2021)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription