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. 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 )
• 3. Omnidirectional Reflection Band Gap in Single Composite Layer of Negative Index Material By-  Khem B. Thapa, Girijesh N. Pandey, Ram Janma and Prabal P. Singh  
  ( Posted On : 20-09-2016 )
• 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 )

In this paper we have presented two photonic crystal ring resonator structures for application as a bio-chemical sensor. One is based on square ring and the other is based on circular ring. The refractive index of square ring and circular ring situated in the center of these structures has been varied according to the refractive index of the materials which has to be sensed. The resonant output peaks of both the square ring and circular ring structure are compared and it has been tried to determine which type of structure among the two is more suitable to be taken for use as a bio-chemical sensor. Simulation is done by applying finite-difference time domain (FDTD) and planar wave expansion (PWE) method.

- Subhashish Tiwari, Achyutesh Dixit, Ashutosh Kumar Dikshit, Praveen C. Pandey *