Intermolecular vibrational energy transfer enabled by microcavity strong light–matter coupling
Abstract
Vibrational energy transfer (VET) between solute molecules is generally unfavorable in liquids because of weak intermolecular forces. Xiang et al. measured the two-dimensional infrared spectrum of a molecular mixture, W(CO) 6 and W( 13 CO) 6 , with saturated concentrations in a binary solvent embedded in an optical microcavity. This experiment showed that the VET between the asymmetric stretch vibrations of two solute molecules is enhanced via polaritonic intermediate states formed by a strong coupling with the cavity mode. The efficiency is modulated by the cavity lifetime, which provides an opportunity to control the VET process in the liquid phase. This could lead to various practical implementations.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 08, 2020
- Source ID
- 10.1126/science.aba3544
Entities
People
- Bo Xiang
- Jiaxi Wang
- Joel Yuen-Zhou
- Liying Chen
- Matthew Du
- Raphael F Ribeiro
- Wei Xiong
- Zimo Yang
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- United States Department of Energy
- University of California, San Diego