As technology is improving, it is bringing comfort to our lives and metalenses are one of them as they are able to decrease the lens sizes that we were using in the past. They are three times lesser in size today and that is also easier to carry and also provides you the maximum results that you want. However, if we talk about past lenses which were being used in order to remove chromatic aberration and that was also causing a lot of issues like a single lens refracting different wavelengths of light and also at different speeds. It was also bad for the overall result as it was causing light to split in different colors like a rainbow.
With the help of this technology, you are able to get rid of these problems and you can focus all the light that you want to focus on a single point. We can say that phones are also going to change in the future and they will provide the maximum result with the help of this technology.
The diffractive optical elements have completely revolutionized the industry and they can be used in order to manufacture different applications. They are also used in order to provide the microstructure pectoral and that is all about changing and enhancing the control of transmitted laser light. Keeping in view how effective and controllable it is, these are now being used in many applications.
Also, it is very easier to produce any beam intensity using the diffractive optical element and that makes it more visible. However, their performance is entirely dependent on the wavelength because they are specifically designed for laser wavelength and they work best with them.
Encodes Desired Intensity Pattern
The diffractive optical element has different types and all of them utilize a microstructures surface so that they can do their own function easily. When the light is transmitted from the diffractive optical element, it can be reset to any other decided shape according to the need, and it is all done by diffraction. You can also do some subsequent propagation depending on the need and requirement.
It works in a way that it encodes the shape of intensity that is desired by you and it makes the pattern and maintains other parameters of the light source including the size of the beam and the divergence. They also have a design flexibility that allows them to have an optical function which is not achievable with other optical systems available right now.