Ultrafast Infrared Plasmonics—A Novel Platform for Spectroscopy and Quantum Control

A marriage of ultrashort-pulsed laser and plasmonics in the mid-infrared range creates a novel platform for light–molecule interactions. Resonant gold nanoantennas are exploited to realize ultrasensitive nonlinear vibrational spectroscopy and vibrationally mediated chemical reaction control. Arbitrary shaping of spatiotemporal field distribution both in nanometer scale and in femtosecond scale has a great promise for advanced vibrational spectroscopy and controlled ground-state chemistry.