We experimentally demonstrate transmission characteristics of a W1 photonic crystal waveguide in silicon on sapphire
at mid infrared wavelength of 3.43 m. Devices are studied as a function of lattice constant to tune the photonic stop
band across the single wavelength of the source laser. The shift in the transmission profile as a function of temperature
and refractive index is experimentally demonstrated. In addition to zero transmission in the stop gap, high transmission
was observe for the characteristic of the waveguiding behavior of photonic crystal line defect modes.
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Yi Zou ; Swapnajit Chakravarty ; Xiaochuan Xu and Ray T. Chen
Integrated photonic crystal waveguides on silicon-on-sapphire for chemical sensing in mid-infrared
", Proc. SPIE 9367, Silicon Photonics X, 93670T (February 27, 2015); doi:10.1117/12.2080266; http://dx.doi.org/10.1117/12.2080266