This device measures and visualizes the momentary power generation state of a photovoltaic (PV) cell.

Screen Holdings Co Ltd, a manufacturer of semiconductor and LCD panel manufacturing equipment, developed evaluation equipment that measures and visualizes the momentary power generation state of a photovoltaic (PV) cell.

A laser pulse is applied to a PV cell (for about 100 femtoseconds each), and the resultant electromagnetic waves (terahertz waves) are detected to visualize the state of the cell.

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