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Appl Phys Lett. 2012 Mar 5;100(10):101903-1019033.

Shifts in plasmon resonance due to charging of a nanodisk array in argon plasma.

Abstract

A method for generating charge-induced plasmonic shifts, using argon plasma to charge nanoparticle arrays, is presented. Particles develop a negative charge, due to enhanced collisions with high-temperature electrons, in low-temperature plasmas. The negative charge generated causes a blue shift in the localized surface plasmon resonance. The dynamics of the shift were recorded and discussed. This effect could be used as a real-time method for studying the dynamics for charging in plasma.

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