Nano piano concept: Arrays of gold, pillar-supported bowtie nanoantennas (bottom left) can be used to record
Nano piano concept: Arrays of gold, pillar-supported bowtie nanoantennas (bottom left) can be used to record distinct musical notes, as shown in the experimentally obtained dark-field microscopy images (bottom right). These particular notes were used to compose "Twinkle, Twinkle, Little Star" ( Source: University of Illinois )