Abstract

Emerging optical metasurface has raised wide interest due to its planar structure and unprecedented control of light through subwavelength nano structures. In this study, we propose a novel metalens that integrates the function of a concentrating lens and linear polarizer. For this lens, focus can only be formed under the incidence of designed linear polarization, and its focusing effect is significantly suppressed upon the incidence of the orthogonal polarization. The linear polarization distinguishing focus characteristic is from the special design of anisotropic subwavelength phase shifters with two functionalities. One is the space-variant polarization distinguishing phase profile achieved through the engineering of a three-dimensional anisotropic phase shifter structure. The other is the selective generation of scattering loss on the incidence of its orthorgonal polarization. The linear polarization distinguishing metalens is fabricated through a complementary metal–oxide–semiconductor compatible nano fabrication process, and its performance is demonstrated through both simulation and experiment.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Subwavelength grating microlens with taper-resistant characteristics

Mao Ye and Ya Sha Yi
Opt. Lett. 42(6) 1031-1034 (2017)

Fresnel rhombs as achromatic phase shifters for infrared nulling interferometry

Dimitri Mawet, Charles Hanot, Cédric Lenaerts, Pierre Riaud, Denis Defrère, Denis Vandormael, Jérôme Loicq, Karl Fleury, Jean-Yves Plesseria, Jean Surdej, and Serge Habraken
Opt. Express 15(20) 12850-12865 (2007)

Flat grating lens utilizing widely variable transmission-phase via guided-modes

Takayuki Matsui, Shuichi Yamashita, Hiroyuki Wado, Hisayoshi Fujikawa, and Hideo Iizuka
Opt. Lett. 40(1) 25-28 (2015)

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

Supplementary Material (1)

NameDescription
» Visualization 1       Video representing our characterization process. One the left is part of our characterization setup: the quarter waveplate and second linear polarizer. On its right is the focus intensity distribution captured by the camera.

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 (4)

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 (1)

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