Inroduction to refractive index calculator The refractive index describes the change in speed of light as it enters from air into the material under observation. Therefore, the refractive index is a material property and everything we see around in our daily lives is composed of different materials. All of the

Chirality is the object’s inability to be superimposed on its mirror image and therefore, chiral objects are not superimposable on their mirror image. On the other hand, achiral objects are those objects that “are” superimposable on their mirror images. These concepts of chiral and achiral objects can be better understood

Invisibility cloaking or cloaking devices refer to a piece of garment or a device that can render a human being utterly invisible to the naked eye. Although invisibility cloaks seem like a concept of science fiction, they are now a reality. These cloaks can now be built by employing carefully

What is an Antenna? In order to understand metamaterial antenna, we first need to understand “what is an antenna?” An antenna is a device that radiates the signals in the form of electromagnetic (EM) energy in space. The traditional antennas are smaller in dimensions in comparison to their operational wavelength

Design of a metasurface lens The design of any metasurface requires the optimization of unit elements, which can be done through sweeps and specialized algorithms designed for a specific problem, which are sometimes present in commercial software (most of the times algorithms are written by the user). The optimization of

Thin film interference Thin films (sometimes referred to as multilayer coatings) are layers of naturally occurring materials that are deposited in such a fashion that their thickness is small, in comparison to the wavelength of Electromagnetic (EM) waves they manipulate. Thin film interference can be used to calculate the behavior

Refractive index Have you ever wondered why light bends when it enters from air into water? Well, this phenomenon happens due to the property called refractive index (sometimes referred to as an index of refraction, complex refractive index, and optical constant of a material). Simply defined, the refractive index of