Photonic band structure of an infinite periodic mirror. The refractive indices used are and for , where is the thickness of the high refractive index layer and is the thickness of the period. The solid straight lines indicate the light lines in the ambient area and the dashed line indicates the Brewster line. The black area is the omnidirectional band gap.
Omnidirectional band gap of six substructures with the photonic band structure shown in Fig. 1 and with different period thickness . Notice that when increases the central wavelength and the width of the omnidirectional band gap increase.
Reflectivity spectra of the balanced mirror structure where the omnidirectional band gap is 3.7 times the periodic multilayer band gap (a) and of the unbalanced mirror structure where the omnidirectional band gap is 4.7 times the periodic multilayer band gap (b). Both are centered at .
Omnidirectional band gap of the balanced mirror proposed for different number of periods .
Characteristics of the six substructures that make up the balanced and the unbalanced mirrors for applications.
Comparison of the omnidirectional band gap of the four mirror structures studied.
Article metrics loading...
Full text loading...