Dynamic photonic barcodes record energy transfer at the biointerface: Cavity-enhanced radiative energy transfer converts biomolecular information from a single droplet into trillions of distinctive photonic barcodes

ScienceDaily | Oct 30, 2020 at 7:02 PM
  • The trouble when considering molecular detection is the mode occupation factor of the analyte outside the cavity: It is only a few tenths from that inside the cavity, leading to a reduced effective Q-factor and unsatisfactory signal-to-noise ratio.
  • The concept of resonant energy transfer separates donor molecules and acceptor molecules at the cavity interface, where radiative energy transfer happens.
  • The developed system takes advantage of an effect whereby the high concentration of dye (donor) inside the microdroplet triggers a cavity-enhanced energy transfer to excite the molecules (acceptor) attached to the cavity interface.