What is it about?
By using the mathematical technique of topology optimization, we show that it is possible to design semiconductor cavity structures that confine light to length scales that are orders of magnitude smaller than the diffraction limit. Such extreme dielectric confinement of light opens new possibilities for increasing the light-matter interaction strength and realizing new nanophotonic devices.
Featured Image
Why is it important?
The new designs we propose may have important applications in integrated photonics and quantum technology.
Perspectives
In the past, extreme confinement of light has been obtained by using plasmonic modes in metallic structures, but losses in the metal pose a serious limitation to many applications. The dielectric designs suggested in this paper, opens new possibilities for extreme confinement of light, while avoiding non-radiative losses.
Jesper Mork
Technical University of Denmark
Read the Original
This page is a summary of: Maximizing the quality factor to mode volume ratio for ultra-small photonic crystal cavities, Applied Physics Letters, December 2018, American Institute of Physics,
DOI: 10.1063/1.5064468.
You can read the full text:
Contributors
The following have contributed to this page
