Abstract
Surface plasmons (SPs) in a metal-insulator-metal (MIM) structure couple with light without using attenuated total reflection (ATR) geometry or a periodically corrugating surface. At the resonance condition, enhanced electric fields are produced adjacent to the metallic surfaces, similar to the SPs excited in the ATR geometry. Because of the simple optical geometry, the MIM is useful for practical applications of SPs. So far, the MIM structure has been used for optical filters [1] and biosensors [2]. However little is known about the nonlinear optical (NLO) properties of the MIM structures. In this paper, I will talk about two NLO phenomena in MIM structures: one optical second-harmonic generation (SHG) and the other optical bistability.
© 2013 Japan Society of Applied Physics, Optical Society of America
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