Indian Journal of Advances in Chemical Science Volume: 8, Issue :2 , April 2020

 
             
   
   

ISSN No.: 2320-0898 (Print); 2320-0928 (Electronic)

DOI: 10.22607/IJACS.2020.802004  

   

Research Article

 

     

Temperature-dependent Photonic Bandgap of Liquid Crystalline Phases of Smectic and Cholesteric Phases

   

T. N. Govindaiah*, K. B. Mahendra, B. N. Chethan

 

ABSTRACT

 

We report the results of our studies on the physical and optical properties of binary mixtures of cholesteryl nonanoate and 4-n′-pentyl-4′-thiocyanatobiphenyls. Experimentally measured optical anisotropy of refractive indices and helical pitch of liquid crystalline phases helps to study the molecular band gap structure of different liquid crystalline phases, respectively, at different temperatures and at different concentrations.

     
     

Key words: Molecular orientation, Refractive indices, Helical pitch, Photonic band gap.

 

 

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