A planar Fabry-Perot cavity is studied at the deep-subwavelength inter-mirror distances, termed "zeroth-cavity mode". Enhanced transmission is observed as d→0 using time-domain terahertz spectroscopy.
The observed modification of thermal chemical rates in Fabry-Perot cavities
remains poorly understood. Mounting evidence supported by theory indicates that
the cavity has a small effect on the potential energy barrier, suggesting that
dynamical corrections may play a prominent role. This is in line with the
relatively small modifications of the rate constant usually reported, often...
Theoretically explaining experimental observations of cavity-modified physics and chemistry remains to be a major challenge, in particular for a large number of coupled emitters (N). Here I discuss a bottom-up approach with minimal quantum many-body models, which include electronic, photonic, and motional degrees of freedom in their simplest form. Solving these (already complex) many-body...
Noble-metal nanostructures support collective electron resonances, known as plasmons, that can “squeeze” optical fields down to nanometer-scale volumes, well below the conventional diffraction limit. The strong localization of electromagnetic fields greatly enhances nonlinear optical processes, both in the metal nanostructure itself and in adjacent optical materials. Because the processes...
The effect of vibrational strong coupling of water on the ionic conductivity is discussed. Modification of the ionic transport in aqueous electrolyte solutions depends on the hydration structures, showing improved conductivities than those based on the classical interpretation.
Over the past two decades, we have achieved a high degree of mastery in studying fundamental nano-optical interactions between single molecules and single photons. These include controlled coherent experiments in the near field, far-field demonstration of efficient extinction, various nonlinear measurements and single-molecule strong coupling in a microcavity. More recently, we have pursued...
