abstract

• We report the design and fabrication of the complete visible range omnidirectional mirror, with a dielectric multilayered structure based on porous silicon (PS). The refractive index profile consisted of Bragg type chirped layers with an increasing thicknesses modulated by a potential envelop function f (x) C x k. The omnidirectional photonic band gap (OPBG) was measured from 396 to 805 nm, with more than 95 of the reflectivity, for 8° and 68°. The theoretical simulations based on the transfer matrix method along with a photographic sequence of the sample confirmed the OPBG for higher incident angles. It was enhanced by a factor of 19 as compared to the last reported visible region OPBG by PS dielectric multilayered structure. © 2012 American Institute of Physics.

authors

• Agarwal V.
• Ariza Flores Augusto David
• Gaggero-Sager L.M.

publication date

• 2012-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: 129783, 39986  Grant

published in

• Applied Physics Letters  Journal

keywords

• Dielectric multilayers; Envelop function; Incident angles; Multi-layered structure; Omnidirectional mirrors; Refractive index profiles; Theoretical simulation; Visible range; Visible region; Photonic band gap; Porous silicon; Transfer matrix method; Mirrors

Digital Object Identifier (DOI)

• 10.1063/1.4738765

start page

end page

volume

• 101

issue

• 3