Optics and Photonics Society of Iran

Adjustability of the stress by the applied temperature, in order to design tunable optical devices are of interest to many researchers. The magnetic behavior of thin films of bismuth ferrite on colloidal photonic crystal as substrate is studied. To increase the effect of stress on bismuth ferrite thin layer of a polymer photonic crystal is designed with suitable dimensions. By Faraday rotation geometry, relation of structure of designed substrate for this goal and magnetic behaver of BFO is described. The substrate thermal striction can deform the magnetic response of the BFO layer. It is argued that the thermal striction accompanying the faraday rotation of the sample.