The physicists from ITMO University, Ioffe Institute and the Australian National University examined a new mechanism of realization of high-quality optical resonators. It is based on the mutual destructive interference of two low-quality optical states in one resonator allowing for secure “trapping” of light in various materials even at small scales. The theoretical results of the work were confirmed experimentally, laying the basis for new miniature devices: effective sensors, optical filters and nonlinear light sources. The research paper is published in SPIE Advanced Photonics.