SYSTEM FOR OPTICAL DETECTION AND VISUALIZATION OF NANOOBJECTS WITH SUBDIFFRACTION RESOLUTION IN A MICROCHANNEL Russian patent published in 2023 - IPC G01N21/03 

FIELD: microcuvettes and optical detection methods.

SUBSTANCE: invention relates to microcuvettes and optical detection methods, in particular, to study the presence and size of nanometric objects in liquid and gaseous media. The system for optical detection and visualization of nano-objects with subdiffraction resolution in a microchannel consists of a microchannel adapted for the passage of a fluid medium with nano-objects through it, limited by a bottom wall and a ceiling wall located opposite and facing the bottom wall, this bottom wall contains a transparent substrate, focusing devices, forming photonic jets inside the fluid between the bottom wall and the ceiling wall, an optical radiation source illuminating the focusing devices through the transparent substrate of the bottom wall and, thus, focusing light in the form of a photonic nanojet, a device for detecting scattered light by a nanoobject and a device for moving a nanoobject. On the inner surface of the ceiling wall, an array of mirror antennas is made with high reflectivity and filled with a fluid medium. The mirror antenna is made with a cylindrical surface, the mirror antenna is made with a flat surface coated with a dielectric, the surface of the mirror antenna with high reflectivity, forming a photonic jet in the form of a photon hook, has a partial continuous coating.

EFFECT: invention provides an optical system for use in detecting and visualizing a plurality of nano-objects with subdiffraction resolution using mirror focusing elements.

4 cl, 6 dwg