mikrorezonátorok

Mikrorezonátorok, also known as microresonators, are nanoscale optical components that exhibit resonant behavior. They are designed to selectively amplify or reflect specific wavelengths of light. The fundamental principle behind their operation lies in their ability to confine light within a small volume, leading to enhanced interaction with matter. This confinement is typically achieved through the use of dielectric materials arranged in specific geometries, such as microrings, microdisks, or photonic crystal structures.

When light of a particular wavelength matches a resonant mode of the microresonator, it becomes trapped within the structure and circulates for an extended period. This prolonged interaction time significantly boosts the intensity of the light. The specific wavelengths that are resonated depend on the physical dimensions, refractive index, and geometry of the microresonator.

Microresonators find applications in a wide array of fields. In telecommunications, they are used for wavelength filtering, multiplexing, and demultiplexing of optical signals. In sensing, their sensitivity to changes in the surrounding refractive index makes them ideal for detecting minute amounts of chemical or biological substances. Furthermore, they are employed in optical switching, frequency comb generation, and for enhancing non-linear optical effects. The miniaturization and integration capabilities of microresonators are driving advancements in optical technologies.