A rainbow of light can be generated by trapping a single-color laser light in a tiny microresonator. This uncanny light is called microcomb and has various applications, from optical communication to space-bourne clockwork.
“With this grant, we will introduce subwavelength-sized metaoptical structures to our microresonators to give a new "twist" to our microcomb. The microresonator will then emit a rainbow of "twisted" light - also known as the orbital angular momentum (OAM) of light.” Kim says about his project “A new class of microcomb: orbital angular momentum frequency comb.”
Realizing the OAM microcomb - a rainbow of twisted light - is, in itself, an astonishing scientific achievement. The OAM microcomb may illuminate optical technologies such as OAM-multiplexed optical communication, optical tweezers, and quantum information processing.
With the grant for the project “A new class of microcomb: orbital angular momentum frequency comb”
Read more about the research from NanoDev: https://www.fotonik.dtu.dk/english/Research-groups/Nanophotonic-Devices