In everyday life, we experience light in one of its simplest forms – rays or optical lens. However, fire can take a more serious form. Therefore, even bars can be shaped into spirals; the so-called vortex beams, given special powers Using Structured Light in another Photonic Breakthrough.
Such a space can throw dust, just as they move along irregular spirals. This type of light is called “organized”, and even this type of light can be achieved in optical materials – metamaterials, where many waves are combined and combined to create the appearance of the most complex light. away.
In both of their recent works, published consecutively in the best magazines “Science Progress” and “Nature Nanotechnology”, researchers from the City College of New York from the group Alexander Khanikaev created structured light and a silicon chip to use.
The process to get new jobs and management was not there before. For this purpose, two-dimensional optical metamaterials, called metasurfaces, and the reception of a kind of organized light that rotates like vortex beams have been created.
Through experiments in Khanikaev’s lab at City College, the researchers demonstrated a new type of trap to lock in a patterned optical fiber and guide them to the explosion. In their work “Science Advances”, the researchers show that by gradually changing the structure of the metasurface on both sides, it is possible to create optical reflectors and trap light and multiply it.
Intriguingly, this structure below made a rare appearance of bright light – eye vortex beams. By applying a similar change in speed and pattern in one direction, as shown in the work of “Nature Nanotechnology”, researchers created a waveguide for organized light.
These channels make it possible to direct the optical signal while preserving the internal structure of the light. As such, it seems that water flows in wires, if we can get a wire with two flavors of charge.
Interestingly, these currents have generated a lot of interest in electronics recently, and a new class of electronic devices, commonly called spintronic or valleytronic, has been proposed.
In such devices, it is not the charge of any charge that will transmit the signal, but the rotation or valley of electrons, which promises a plethora of advantages over electronic devices.
Khanikaev’s work deals with a similar concept, but uses light rather than electrons. However, unlike electronic systems, optics and photonics have a major advantage: optical models do not suffer from distortion to the same degree as electrons, which may be important for quantum technology.
Khanikaev’s group representation can be useful for quantum applications for several reasons. Therefore, an integrated method of optical mode can be used to encode quantitative information in the form of quantum bits.
This information can be carried on a chip or transmitted over free space to communicate numerical information between distant systems.
In this direction, Khanikaev’s team is currently working to implement these concepts in the quantum state of organized light and to understand quantum logic in their photonic nanostructures.
Source: City College of New York
