Directing light emission is key for many applications in photonics and biology. Optical
antennas made from nanostructured plasmonic metals are suitable candidates for this
purpose but designing antennas with good directional characteristics can be challenging,
especially when they consist of multiple elements. Here we show that strongly directional
emission can also be obtained from a simple individual gold nanodisk, utilizing the far-field
interference of resonant electric and magnetic modes. Using angle-resolved …