Abstract

We show that by use of an array of micromechanical tunneling cantilevers we can determine the amplitude and phase profile of an incident light beam. When there is no phase jump the phase profile can be determined by the measurement of two sets of the tunneling currents that correspond to a steplike applied bias, which induces a Franz–Keldysh effect in the cantilevers. The case of phase jump is also discussed.

© 2001 Optical Society of America

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