What is it about?
The electric modulation of the phase of light passing through a thin zinc oxide film sandwiched between a transparent and a reflecting contact layer.
Why is it important?
We demonstrate the strong phase modulation due to the effects of free carriers by means of a sensitive nonlinear ellipsometric setup. This is important in electro-optic modulator or polarization control and it is studied on a versatile material such as zinc oxide which can feature plasma resonance in the near infrared upon doping.
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This page is a summary of: Strong free-carrier electro-optic response of sputtered ZnO films, Journal of Applied Physics, September 2012, American Institute of Physics, DOI: 10.1063/1.4749404.
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