Angular frequency dependence for a planar cavity defect introduced into a 2-dimensional photonic crystal

Summary form only given. Using the transfer matrix technique method the response of a 2D photonic crystal with a planar cavity has been investigated. The crystal was made from silicon dielectric bars /spl epsi//sub T/=11.7 which are 340/spl times/390 /spl mu/m, in the x- and z- dimensions respectively with a periodic spacing of 1275 /spl mu/m in the x-direction and 790 /spl mu/m in the y-direction. The transmission response for the crystal, with a planar cavity defect introduced centrally, is examined theoretically and experimentally. Experimental analysis was carried out between 67-110 GHz, the limitation range of the W-band analyser and found to be in excellent agreement with the predicted response.