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Ultrasensitive localization of plasmonic nanoparticles by dual optical lock-in interferometric imaging and photothermal excitation

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Abstract

Dual optical lock-in (DOLI) interferometric imaging method allowing for simultaneous detection of scattering and absorption depth profiles is proposed and used for highly sensitive localization of gold nanorods in colloidal solution via photothermal excitation.

© 2018 The Author(s)

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