Manipulating Dielectric Film to Give It a Refractive Index Close to Air (IMAGE)

North Carolina State University

Manipulating Dielectric Film to Give It a Refractive Index Close to Air

Caption

By manipulating the structure of aluminum oxide, a dielectric material, researchers were able to improve its optical and mechanical properties. The key to the film's performance is the highly-ordered spacing of the pores, which gives it a more mechanically robust structure without impairing the refractive index. You can see the structure here, on the micrometer scale.

Credit

Chih-Hao Chang

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