Photos of an Optical Modulator at 2 Different States of SmNiO3 (IMAGE)

Columbia University School of Engineering and Applied Science

Photos of an Optical Modulator at 2 Different States of SmNiO3

Caption

Pristine and electron-doped SmNiO3 show different colors due to their drastically different optical transparency. The device consists of a metasurface structure patterned on a thin film of SmNiO3 and a platinum back mirror, and it can modulate a narrow band of infrared radiation. Details of the metasurface structure can be seen in the following scanning electron micrographs.

Credit

Nanfang Yu, Columbia Engineering

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