PENNY WATCH

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$LIBE ~ The new approach is based on the discovery that unexpected quantum effects increase the number of charge carriers, known as electrons and “holes,” that are knocked loose when photons of light of different wavelengths strikes a metal surface coated with a special class of oxide materials known as high-index dielectrics. The photons generate what are known as surface plasmons — a cloud of oscillating electrons that has the same frequency as the absorbed photons.