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Conferences > CLEO_SI > 2014 > SM2E > SM2E.2

Ultra-sensitive mid-infrared photoexpansion nanospectroscopy with background suppression

Feng Lu, Mingzhou Jin, and Mikhail A. Belkin

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Abstract

The ultimate sensitivity of mid-infrared photoexpansion nanospectroscopy is limited by the background signal from photoexpansion of the sample substrate and the probe tip. Here we demonstrate suppression of this signal using a second mid-infrared laser.

© 2014 Optical Society of America

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