Orientational order in nematic phases determined from polarized optical spectroscopy

Danuta Bauman

doi:10.1117/12.215529

2 August 1995 Orientational order in nematic phases determined from polarized optical spectroscopy

Danuta Bauman

Proceedings Volume 2372, Liquid Crystals: Materials Science and Applications; (1995) https://doi.org/10.1117/12.215529
Event: Liquid Crystals: Materials Science and Applications, 1994, Zakopane, Poland

Abstract

The orientational order of some nematogenic low molecular liquid crystals and three polymers with mesogenic side groups has been studied using 'guest-host' effect. The polarized absorption and fluorescence spectra of the fluorescent guest probe oriented in the liquid crystalline matrices have been measured as a function of the temperature in the nematic phase. From the experimental data, the order parameters <P₂> and <P₄> as well as the molecular distribution function have been determined. The small differences between the molecular orientation in the low molecular liquid crystals and the side chain polymers have been observed. It has been also found that the orientational order depends strongly on the molecular structure of the mesogenic molecules.

Citation Download Citation

Danuta Bauman "Orientational order in nematic phases determined from polarized optical spectroscopy", Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); https://doi.org/10.1117/12.215529

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