New discovery and mechanism behind the diffraction ring formation of a nematic liquid crystal

Kwok Cheung Pun

doi:10.1117/12.311056

17 June 1998 New discovery and mechanism behind the diffraction ring formation of a nematic liquid crystal

Kwok Cheung Pun

Proceedings Volume 3421, Display Technologies II; (1998) https://doi.org/10.1117/12.311056
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan

Abstract

A new discovery has been made for the diffraction ring formation of a nematic liquid crystal. When a beam shines on the crystal of a shallow tilt at 5 degrees, an innermost ring will be formed form the previous innermost ring. While it is at steep tilt of 40 degrees, the new innermost ring will be given rise by the bright center spot. The mechanism is deep-rooted to the electronic polarizability of the nematic liquid crystal. Thus the polarizability can form a complex and yet the most realistic model for the crystal to account for its characteristics. The sensitivity and physical display of two different ring formations of the nematic liquid crystal will open a wide range of investigations including some unknown areas like a calibration of earthquake-prediction detection and some very high-precision instrument applications.

Citation Download Citation

Kwok Cheung Pun "New discovery and mechanism behind the diffraction ring formation of a nematic liquid crystal", Proc. SPIE 3421, Display Technologies II, (17 June 1998); https://doi.org/10.1117/12.311056

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