Abstract

We present diffractive optical elements with an extended depth of focus, namely, fractal spiral zone plates (FSZPs), which combine a fractal structure and spiral zone plates (SZPs) to generate a sequence of coaxial vortices in the focal volume along the propagation direction. The axial irradiance of the FSZPs is examined both experimentally and in a simulation and is compared with that of SZPs and that of fractal zone plates. The focusing properties of the FSZPs with different parameters are investigated, and a potential application to edge-enhancement images is also shown.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Fractal zone plates

Genaro Saavedra, Walter D. Furlan, and Juan A. Monsoriu
Opt. Lett. 28(12) 971-973 (2003)

Fractal zone plates with variable lacunarity

Juan A. Monsoriu, Genaro Saavedra, and Walter D. Furlan
Opt. Express 12(18) 4227-4234 (2004)

Characterization of the focusing performance of axial line-focused spiral zone plates

Chenglong Zheng, Shilei Su, Huaping Zang, Ziwen Ji, Yongzhi Tian, Shu Chen, Kaijun Mu, Lai Wei, Quanping Fan, Chuanke Wang, Xiaoli Zhu, Changqing Xie, Leifeng Cao, and Erjun Liang
Appl. Opt. 57(14) 3802-3807 (2018)

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 (5)

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