One-dimensional structure made of periodic slabs of SiO2/InSb offering tunable wide band gap at terahertz frequency range
Photonic band structure of the ideal perfect SiO2/InSb PC. (a)–(d) The dependence of the dispersion on the SiO2 and InSb layers’ thicknesses. Panels (e) and (f) are for the structures having layers of equal thicknesses. Color maps represent the variations of the structure transmittance versus frequency and thickness of the layers. InSb and SiO2 layers’ thicknesses are 4 μm in (a), (b) and (c), (d), respectively. The crystal temperature is 300 K and the incidence angle is normal to the crystal in all cases.
