As a result, it seemed to be impossible to compress light strongly in dielectric materials like silicon, which are essential for information technologies and had the significant advantage of not absorbing light.Then we asked the computer to find a pattern that collects the photons in an unprecedentedly small area – in an optical nanocavity – which we were also able to build in the laboratory.”Optical nanocavities are structures that have been specially designed to retain light so that it does not travel normally but is tossed back and forth as if two mirrors were facing each other.For this experiment, the researchers created a bowtie structure, which is particularly effective in squeezing photons together due to its unique shape.It has only been possible because we have managed to combine world-leading research from several research groups at DTU,” says associate professor Søren Stobbe, who has led the research work.”Important breakthrough for energy-efficient technologyThe discovery could be decisive for developing revolutionary new technologies that may reduce the amount of energy-guzzling components in data centers, computers, telephones, etc.DOI: 10.1038/s41467-022-33874-wDOI: 10.1038/s41467-022-33874-wThe study was funded by the Villum Foundation Young Investigator Program, the Villum Foundation Experiment Program, the Danish National Research Foundation, the Independent Research Fund Denmark, and the Innovation Fund Denmark."