Investigation of exact analytic solution for oblique propagation in chiral sculptured thin films and smectic liquid crystals

2003 ◽  
Author(s):  
John A. Polo, Jr. ◽  
Akhlesh Lakhtakia
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Analytic Solution ◽  
Exact Analytic Solution ◽  
Smectic Liquid Crystals ◽  
Sculptured Thin Films ◽  
Oblique Propagation

How do smectic liquid crystals of different molecular length mix in thin films?

2002 ◽  
Vol 9 (S1) ◽  
pp. 443-446 ◽  
Author(s):  
H.R. Keymeulen ◽  
W.H. de Jeu ◽  
J.T. Slattery ◽  
M. Veum
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Smectic Liquid Crystals ◽  
Molecular Length

On alignment of nematic liquid crystals infiltrating chiral sculptured thin films

2012 ◽  
Author(s):  
Hadar Krupsky Reisman ◽  
Drew P. Pulsifer ◽  
Raúl J. Martín-Palma ◽  
Akhlesh Lakhtakia ◽  
Roman Dąbrowski ◽  
...  
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Sculptured Thin Films

On alignment of nematic liquid crystals infiltrating chiral sculptured thin films

2013 ◽  
Vol 7 (1) ◽  
pp. 073591 ◽  
Author(s):  
Hadar Krupsky Reisman ◽  
Drew P. Pulsifer ◽  
Raúl J. Martín-Palma ◽  
Akhlesh Lakhtakia ◽  
Roman Dąbrowski ◽  
...  
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Sculptured Thin Films

Surface-induced and oriented textures of smectic liquid crystals: effect of thin films

2002 ◽  
Vol 35 (22) ◽  
pp. 2994-3001 ◽  
Author(s):  
Arif Nesrullajev ◽  
Mustafa Tepe ◽  
Nadide Kazanci
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Smectic Liquid Crystals

Ultra-thin films of polymerised smectic liquid crystals. A study using AFM and ellipsometry

1999 ◽  
Vol 8-9 ◽  
pp. 85-87
Author(s):  
M Bardosova ◽  
S.D Evans ◽  
P Hodge ◽  
V Jablonska ◽  
S Johnson ◽  
...  
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Smectic Liquid Crystals

scholarly journals Localized Conical Edge Modes of Higher Orders in Photonic Liquid Crystals

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 542 ◽  
Author(s):  
Vladimir A. Belyakov ◽  
Sergei V. Semenov
Keyword(s):  
Liquid Crystals ◽  
Maxwell Equations ◽  
Analytic Solution ◽  
Second Order ◽  
Experimental Results ◽  
Analytical Theory ◽  
Exact Analytic Solution ◽  
Localized Modes ◽  
First Order ◽  
Order Diffraction

Most studies of the localized edge (EM) and defect (DM) modes in cholesteric liquid crystals (CLC) are related to the localized modes in a collinear geometry, i.e., for the case of light propagation along the spiral axis. It is due to the fact that all photonic effects in CLC are most pronounced just for a collinear geometry, and also partially due to the fact that a simple exact analytic solution of the Maxwell equations is known for a collinear geometry, whereas for a non-collinear geometry, there is no exact analytic solution of the Maxwell equations and a theoretical description of the experimental data becomes more complicated. It is why in papers related to the localized modes in CLC for a non-collinear geometry and observing phenomena similar to the case of a collinear geometry, their interpretation is not so clear. Recently, an analytical theory of the conical modes (CEM) related to a first order of light diffraction was developed in the framework of the two-wave dynamic diffraction theory approximation ensuring the results accuracy of order of δ, the CLC dielectric anisotropy. The corresponding experimental results are reasonably well described by this theory, however, some numerical problems related to the CEM polarization properties remain. In the present paper, an analytical theory of a second order diffraction CEM is presented with results that are qualitatively similar to the results for a first order diffraction order CEM and have the accuracy of order of δ2, i.e., practically exact. In particular, second order diffraction CEM polarization properties are related to the linear σ and π polarizations. The known experimental results on the CEM are discussed and optimal conditions for the second order diffraction CEM observations are formulated.

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