Abstract

In this Letter, we disclose a Dammann grating (DG) based on the hybrid photo-aligned nematic liquid crystals (LCs). The LC cell is composed of two substrates, wherein the first substrate is treated to provide the homeotropic alignment, and the other substrate is set to provide an in-plane, patterned alignment with a mutually orthogonal easy axis in the neighboring alignment domains. Thus, the fabricated polarization independent DG generates an optical array of equally distributed energy, which is characterized by a diffraction efficiency of more than 58%, a response time <1  ms, and the driving voltage 3 V/μm. Furthermore, the optically active alignment layer provides the optical tunability and reconfigurability for the proposed DG. With these advantageous parameters, these DGs can be applied in modern applications.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Switchable Fresnel lens based on micropatterned alignment

Xiao-Qian Wang, Abhishek K. Srivastava, Vladimir G. Chigrinov, and Hoi-Sing Kwok
Opt. Lett. 38(11) 1775-1777 (2013)

Optically tunable and rewritable diffraction grating with photoaligned liquid crystals

J. Sun, A. K. Srivastava, L. Wang, V. G. Chigrinov, and H. S. Kwok
Opt. Lett. 38(13) 2342-2344 (2013)

Liquid crystal Fresnel zone lens based on single-side-patterned photoalignment layer

X. Q. Wang, F. Fan, T. Du, A. M. W. Tam, Y. Ma, A. K. Srivastava, V. G. Chigrinov, and H. S. Kwok
Appl. Opt. 53(10) 2026-2029 (2014)

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 (5)

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 (3)

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