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As the optical input signal (blue line) to a photodetector increases, the electrical output signal (red line) increases proportionally, and then begins to deviate from linear.
In the simple experiment, a converging lens focuses laser light from two pinholes onto two different photodetectors .
A plurality of photodetectors is used to detect the light and determine a first three-dimensional position of the interaction.
The rear and front surfaces of an object are covered with a material containing an array of photodetectors and light emitters respectively.
So far, we've made nanoscale lasers, photodetectors , and ribbons that serve as flexible sub-wavelength optical waveguides.
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