Monte Carlo study of tunable negative-zero-positive index of refraction in nanosphere dispersed liquid crystals

W. Walasik; M. Jarema; G. Pawlik; R. Orlik; A. C. Mitus; F. Kajzar

doi:10.1117/12.809718

12 February 2009 Monte Carlo study of tunable negative-zero-positive index of refraction in nanosphere dispersed liquid crystals

W. Walasik, M. Jarema, G. Pawlik, R. Orlik, A. C. Mitus, F. Kajzar

Author Affiliations +

Proceedings Volume 7213, Organic Photonic Materials and Devices XI; 72130A (2009) https://doi.org/10.1117/12.809718
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Khoo et al.^{1, 2} have shown that nanosphere dispersed nematic liquid crystal (NDLC) constitutes a new type of metamaterial with index of refraction tunable from negative to positive values. Recently³ we have combined this approach with Monte Carlo simulations of inhomogeneous molecular order in planar NLC cells. Lebwohl - Lasher effective hamiltonian with Rapini - Papoular term for anchoring forces was used. Electric field and amplitude of anchoring forces are control parameters which determine the profiles of order parameter. In this paper we study, using the same approach, local spatial distribution of refractive index in NDLC planar cell. We show that NDLC material consists of layers with negative-zero-positive index of refraction. The spatial organization of those layers strongly depends on incident light wavelength. The role of spatially modulated external electric field for tuning of refractive index of NDLC is briefly discussed.

Citation Download Citation

W. Walasik, M. Jarema, G. Pawlik, R. Orlik, A. C. Mitus, and F. Kajzar "Monte Carlo study of tunable negative-zero-positive index of refraction in nanosphere dispersed liquid crystals", Proc. SPIE 7213, Organic Photonic Materials and Devices XI, 72130A (12 February 2009); https://doi.org/10.1117/12.809718

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