Abstract

Fluorescence resonance energy transfer (FRET) is a phenomenon associated with fluorescent molecules within a nanometer order of the separation distance. FRET signals can be controlled and modulated with variations, positions, and energy states of the fluorescent molecules in a nanometer-scaled volume. Use of FRET is a fundamental technique to construct nanoscale information processing systems. A good example of the devices utilizing the technique is a DNA-controlled FRET switch [1].

© 2014 Japan Society of Applied Physics, Optical Society of America