Template effect of twist structure liquid crystal and its photonic application (Conference Presentation)

Jiangang Lu

doi:10.1117/12.2273131

19 September 2017 Template effect of twist structure liquid crystal and its photonic application (Conference Presentation)

Jiangang Lu

Author Affiliations +

Proceedings Volume 10361, Liquid Crystals XXI; 103610G (2017) https://doi.org/10.1117/12.2273131
Event: SPIE Organic Photonics + Electronics, 2017, San Diego, California, United States

Abstract

The template effect of self-assembly twist structure liquid crystal (LC) is investigated. The anchoring energy of blue phase (BP) template containing different concentration of conventional polymer has been investigated that every different polymer system had its own threshold concentration to reconstruct the blue phase. The anchoring energy of the BP template increased with the polymer concentration resulting in the improvement of the reconstruction capacity. No matter with the same-handed or reverse-handed chiral materials refilling, there was a concentration range for the chiral dopant to reconstruct the blue phase by the polymer template. And the reconstruction range of the templates was extended as the polymer concentration of the template increased. It was demonstrated that the template anchoring energy has a threshold value to reassemble the double twist cylinder structure of BPLC by either refilling same-handed chiral materials or reverse-handed chiral materials which may help to improve the driving capacity of the polymer stabilized BPLC. Similar to the BPLC, a sphere phase template was proposed to improve the temperature range of sphere phase (SP) to more than 175℃.By template processing, a wavelength tunable random lasing was demonstrated with dye doped SPLC. With different polymer concentrations, the reconstructed sphere phase random lasing may achieve more than 40nm wavelength shifting by electrical field modulation. And the threshold energy of SPLC random laser can be lowered to about 30% of that from the chiral nematic phase LC.

Conference Presentation

Citation Download Citation

Jiangang Lu "Template effect of twist structure liquid crystal and its photonic application (Conference Presentation)", Proc. SPIE 10361, Liquid Crystals XXI, 103610G (19 September 2017); https://doi.org/10.1117/12.2273131

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
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Liquid crystals

Polymers

Optical spheres

Phase shift keying

Random lasers

Laser crystals

Molecular self-assembly

Show All Keywords

Keywords/Phrases

Search In:

Publication Years