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5 October 2015 Nonlinear coherent spectroscopy in the single molecule limit (Presentation Recording)
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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.
Conference Presentation
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Eric O. Potma "Nonlinear coherent spectroscopy in the single molecule limit (Presentation Recording)", Proc. SPIE 9564, Light Manipulating Organic Materials and Devices II, 95640C (5 October 2015);

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