scholarly journals ON THE TAPERED OPTICAL FIBERS WITH RADIALLY ANISOTROPIC LIQUID CRYSTAL CLAD

2011 ◽  
Vol 115 ◽  
pp. 461-475 ◽  
Author(s):  
Pankaj Kumar Choudhury ◽  
Wong Keng Soon
Keyword(s):  
Liquid Crystal ◽  
Optical Fibers ◽  
Anisotropic Liquid

scholarly journals Evanescent Field Enhancement in Liquid Crystal Optical Fibers: A Field Characteristics Based Analysis

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
P. K. Choudhury
Keyword(s):  
Liquid Crystal ◽  
Optical Fibers ◽  
Electromagnetic Wave Propagation ◽  
Optical Axis ◽  
Field Enhancement ◽  
Liquid Crystal Material ◽  
Te Mode ◽  
Anisotropic Liquid ◽  
Different Types ◽  
Very High

The paper presents the analysis of the electromagnetic wave propagation through liquid crystal optical fibers (LCOFs) of two different types—conventional guides loaded with liquid crystals (addressed as LCOFs) and those with additional twists due to conducting helical windings (addressed as HCLCOFs). More precisely, the three-layer optical waveguide structures are considered along with its outermost region being loaded with radially anisotropic liquid crystal material and the inner regions being made of usual silica, as used in conventional optical fibers. In addition to that, LCOF with twists introduced in the form of conducting helical windings at the interface of the silica core and the liquid crystal clad is also taken into account. Emphasis has been put on the power confinements by the lower-order TE modes sustained in the different sections of the LCOF structure. The results demonstrate useful applications of these guides in integrated optics as the power sustained in the liquid crystal section by the excited TE modes remains very high. In the case of twisted clad liquid crystal guides, descriptions are limited to the nature of dispersion relation only under the TE mode excitation, and corresponding to the cases of helix orientations being parallel and perpendicular to the optical axis.

Highly-anisotropic liquid-crystal mixtures for tunable microwave devices

2003 ◽  
Vol 39 (24) ◽  
pp. 1732 ◽  
Author(s):  
C. Weil ◽  
St. Müller ◽  
P. Scheele ◽  
P. Best ◽  
G. Lüssem ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Microwave Devices ◽  
Anisotropic Liquid ◽  
Tunable Microwave

scholarly journals Anisotropic liquid crystal gels for switchable polarizers and displays

2002 ◽  
Vol 81 (8) ◽  
pp. 1432-1434 ◽  
Author(s):  
Hongwen Ren ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Anisotropic Liquid

Propagation through complex structured liquid crystal optical fibers

2014 ◽  
Vol 8 (1) ◽  
pp. 083997 ◽  
Author(s):  
Masih Ghasemi ◽  
Pankaj K. Choudhury
Keyword(s):  
Liquid Crystal ◽  
Optical Fibers

scholarly journals Thermal tunability of photonic bandgaps in liquid crystal infiltrated microstructured polymer optical fibers

2009 ◽  
Vol 17 (22) ◽  
pp. 19356 ◽  
Author(s):  
Wu Yuan ◽  
Lei Wei ◽  
Thomas Tanggaard Alkeskjold ◽  
Anders Bjarklev ◽  
Ole Bang
Keyword(s):  
Liquid Crystal ◽  
Optical Fibers ◽  
Photonic Bandgaps ◽  
Polymer Optical Fibers
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