Archives

• 1. Stable Solitons in One Dimensional Photonic Crystal with Defocusing Nonlinearity By-  Achyutesh Dixit, Subhashish Tiwari, Ashutosh Kumar Dikshit, Praveen Chandra Pandey  
  ( Posted On : 10-12-2015 )
• 2. Bio-Chemical Sensor Based on Square Ring and Circular Ring Photonic Crystal Ring Resonator By-  Subhashish Tiwari, Achyutesh Dixit, Ashutosh Kumar Dikshit, Praveen C. Pandey  
  ( Posted On : 20-09-2016 )
• 3. Study of Birefringence and Refractive Index for Cholest-5-en-3-ol (3β)-, Propanoate By-  Srashti Saxena, Abhay Saxena, R. S. Yadav and Sanjay Kr. Sharma  
  ( Posted On : 10-12-2015 )
• 4. Study of the Bulk Properties of Cholesteric Liquid Crystal Using Ultrasonic Techniques By-  Abhay Saxena, Srashti Saxena, Prakash Dubey and Sanjay Kr. Sharma  
  ( Posted On : 20-09-2016 )

The enlarged omni-directional reflection band gap (ODRBG) of a semi-infinite single layer of negative index material (NIM) has been investigated. We know that the effective refractive index of the NIM depends on electric permittivity and magnetic permeability. The zero refractive index of the NIM is a phenomenal behavior for the plasma frequency of the material. We have calculated the optical properties of the considered material with varying the magnetic plasma frequency. The reflectance of the single layer for TE and TM modes is obtained 100% omni-directional reflection band gap (ODRBG) when the refractive index of the NIM is zero. The enlarged ODRBG is found when the magnetic plasma frequency increases.

- Khem B. Thapa, Girijesh N. Pandey, Ram Janma and Prabal P. Singh *