Abstract

Compact Fresnel lensing has been extensively used to achieve efficient management of the optical front. The further ability of dynamic tunability generally requires geometric reshaping through elastic deformations. Spiralized lens devices are able to present this property thanks to their substructured elongated configuration; nevertheless, elasticity is still subject to unavoidable limitations due to the limited flexibility of adoptable materials; thus, a nonflexible variant of these structures is quite more convenient. Here we describe a way to promote dynamic continuous light transmission through synchronous displacements of rigid spirals. The general design theory is explained to show the versatility of this new technology. A special study is devoted to the promotion of a controllable phase delay device, based on the Fresnel zone plate design, to promote perfectly endless and continuous linear phase transitions.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Efficient light focusing through tunable spiralized Fresnel zone plate

A. Benedetti and B. Alam
J. Opt. Soc. Am. B 36(4) 1008-1016 (2019)

Focusing properties of Fresnel zone plates with spiral phase

Binzhi Zhang and Daomu Zhao
Opt. Express 18(12) 12818-12823 (2010)

Design, fabrication, and evaluation of a multilevel spiral-phase Fresnel zone plate for optical trapping

A. Vijayakumar and Shanti Bhattacharya
Appl. Opt. 51(25) 6038-6044 (2012)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (5)

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

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

Equations (34)

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

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

Metrics