Two-dimensional holographic polarization grating formed on azo-dye-doped PVA films

Andy Ying-Guey Fuh; Wei Yen Wu; Ming Shian Li; Hui Chi Lin

doi:10.1117/12.807619

3 February 2009 Two-dimensional holographic polarization grating formed on azo-dye-doped PVA films

Andy Ying-Guey Fuh, Wei Yen Wu, Ming Shian Li, Hui Chi Lin

Proceedings Volume 7232, Emerging Liquid Crystal Technologies IV; 723207 (2009) https://doi.org/10.1117/12.807619
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

This study describes an electrically tunable two-dimensional (2D) liquid crystal (LC) holographic polarization grating (HPG). It is a twisted nematic (TN) grating array, which is obtained by orthogonally overlaying two crossed 1D polarization holograms. A 1D polarization hologram has a rotating linear polarization pattern, generated by the interference of two orthogonal circularly (OC) polarized beams on a substrate that is coated with an azo-dye doped PVA layer. The images under a polarized optical microscope (POM) and the diffraction patterns from the 2D grating are simulated using the Jones matrix and a Fourier transformation. The experimental results agree with the simulated results. This work represents a substantial advance toward the realization of highly functionalized passive optical devices in which both the beam propagation direction and the polarization state can be controlled in two dimensions.

Citation Download Citation

Andy Ying-Guey Fuh, Wei Yen Wu, Ming Shian Li, and Hui Chi Lin "Two-dimensional holographic polarization grating formed on azo-dye-doped PVA films", Proc. SPIE 7232, Emerging Liquid Crystal Technologies IV, 723207 (3 February 2009); https://doi.org/10.1117/12.807619

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available