aDepartamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain
bDepartamento de Estadística e Investigación Operativa I, Facultad de Matemáticas, Universidad Complutense, 28040 Madrid, Spain
Abstract:
By introducing the notion of wavelength- and angle-averaged transmittance, we assess in a systematic way the possibility of achieving approximate omnidirectional antireflection in a wide spectral range by using double-layer systems. We also determine the optimum range of thicknesses for which this broadband omnidirectional antireflection occurs.