Mikrotoroidiresonatorit

Mikrotoroidiresonatorit, also known as microtoroid resonators, are a type of optical resonator that exhibits high quality factors and small mode volumes. They are fabricated from materials like silicon nitride or silicon and have a toroidal shape with dimensions on the micrometer scale. The toroidal geometry confines light due to total internal reflection, leading to a resonant behavior where light circulates within the torus.

These resonators are important in photonics and quantum optics due to their ability to store light efficiently. The high quality factor means that light can resonate for a long time within the microtoroid, leading to strong light-matter interactions. This property makes them suitable for various applications, including sensing, optical filtering, and the development of low-threshold lasers.

The fabrication of microtoroid resonators typically involves techniques such as electron-beam lithography and etching. Precise control over the geometry is crucial for achieving the desired resonant wavelengths and high quality factors. Researchers are continually exploring new materials and fabrication methods to improve their performance and expand their potential uses. Their small size also makes them attractive for integration into compact photonic circuits.