Molecules in a tight spot Researchers at Stanford University and the Max Planck Institute for Polymer Research have demonstratedfluorescence enhancements ten times greater than previously demonstrated, by placing single fluorophores in anoptical bowtie nano-antenna

摘要

Nano-emitters such as singlemolecules are many magnitudessmaller than the wavelength ofvisible light. Therefore, the selection ofsingle nano-emitters and the control oflight–molecule interaction processes —including fluorescence efficiency — isdesirable. One approach is to use opticalnano-antennas to enhance electric fieldsand thus improve emission, but achievingreliable fluorescence enhancements is stillan ongoing challenge