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Proceedings Paper

Nonlinear coherent spectroscopy in the single molecule limit (Presentation Recording)
Author(s): Eric O. Potma
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Paper Abstract

Detecting coherent anti-Stokes Raman scattering (CARS) signals from signal molecules is a longstanding experimental challenge. Driving the vibrational CARS response with surface plasmon fields has proven notoriously difficult due to strong background contributions, unfavorable heat dissipation and the phase dispersion of the plasmon modes in the ensemble. In this work we overcome previous experimental limitations and demonstrate time-resolved, vibrational CARS from molecules in the low copy number limit, down to the single molecule level. Our measurements, which are performed under ambient and non-electronic resonance conditions, establish that the coherent response from vibrational modes of individual molecules can be studied experimentally, opening up a new realm of molecular spectroscopic investigations.

Paper Details

Date Published: 5 October 2015
PDF: 1 pages
Proc. SPIE 9564, Light Manipulating Organic Materials and Devices II, 95640C (5 October 2015); doi: 10.1117/12.2188245
Show Author Affiliations
Eric O. Potma, Univ. of California, Irvine (United States)

Published in SPIE Proceedings Vol. 9564:
Light Manipulating Organic Materials and Devices II
Jon A. Schuller, Editor(s)

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