Polymer-dispersed liquid crystals forming tunable microlens

P. P. Maksimyak; A. P. Maksimyak; A. L. Nehrych

doi:10.1117/12.2615163

20 December 2021 Polymer-dispersed liquid crystals forming tunable microlens

P. P. Maksimyak, A. P. Maksimyak, A. L. Nehrych

Proceedings Volume 12126, Fifteenth International Conference on Correlation Optics; 1212609 (2021) https://doi.org/10.1117/12.2615163
Event: Fifteenth International Conference on Correlation Optics, 2021, Chernivtsi, Ukraine

Abstract

At present, liquid crystals – polymer (LC-P) composites such as polymer-dispersed liquid crystals (PDLC), polymer stabilized liquid crystals (PSLC) and polymer networks in liquid crystals (PNLC) are widely used as operating elements of optical devices such as microlens and elements, whose principle of operation is based on light scattering. LC-P composites light refraction features depend on shape and size of liquid crystal (LC) drops as well as on director orientation inside of drops. LC anisotropy influences polarization characteristics of refracted radiation. We have investigated desined as the tunable microlens on LC-P with different components concentration ratio. We have used LC E7 by Merck, dispersed in the polymer NOA 65 by Norland Inc. as the object of research. They have close refractive indeces which provide the posibility to shange the focal length of such LC lens in wide range. We change focal length by change of applied voltage and by rotation of polarization plane of illuminating beam. Partial beams passed through LC droplets and polymer matrix may be considered as plane waves passing different optical pathes and interfering in the far zone. Changing the voltage results in changing the LC effective refractive index leading to a change of the path difference between the interfering beams. The effect of interference decreases of some spectral components of the radiation passing through LC-P sample can be used as a tunable chromatic lens.

Citation Download Citation

P. P. Maksimyak, A. P. Maksimyak, and A. L. Nehrych "Polymer-dispersed liquid crystals forming tunable microlens", Proc. SPIE 12126, Fifteenth International Conference on Correlation Optics, 1212609 (20 December 2021); https://doi.org/10.1117/12.2615163

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Liquid crystals

Polymers

Microlens

Refractive index

Sensors

Photomasks

Polarization

Show All Keywords

Keywords/Phrases

Search In:

Publication Years