Wendy J. Nimens, Luisa Whittaker-Brooks and Michael H. Bartl
J. Mater. Chem. C, 2016,4, 668-672
DOI:
10.1039/C5TC03581C,
Communication
A mix-and-match sol–gel deposition method allows fabrication of one-dimensional photonic bandgap materials with strategically placed porous layers. Examples of fabricated optical devices include a Bragg mirror with an ultra-high refractive index difference, an all-silica optical reflection switch and a porous Fabry–Perot microcavity with excellent relative humidity sensing ability.