Metamaterial/ Metasurface absorbers In the previous post about classical perfect light absorbers, we discussed the thin film based absorbers in the shape of Salisbury screen absorbers and Jaumann absorbers. Now, these thin film based absorbers, especially the Salisbury screen, can be titled as an early demonstration of metasurface absorbers as

Environmental degradation through Depletion of natural resources The depletion of natural resources is the process by which the natural resources found on earth, such as coal, oil, water, wood, are reduced due to their excessive utilization. This utilization of non-renewable natural resources causes environmental degradation. Environmental degradation is a secondary

Payback period calculator Instructions on using the payback period calculator The payback period of the solar (PV) system calculator can be used for any currency. Just make sure that all the inputs which require the costs or the prices should all be entered in the same currency. The calculator uses

Absorbers An absorber is a device that partially or completely absorbs the incoming light or an EM wave for which it is designed. Absorption is one of the three phenomena that can happen to light as it hits the object. When light falls on an object, depending on the complex

Parametric Sweep tool The simulation tools used to simulate 3D nanostructures (or metamaterials/metasurfaces) usually come with a built-in operation of parametric sweep (or simply sweep ). A parametric sweep, as evident by its name, sweeps a particular parameter or a set of parameters to evaluate the results. A parametric sweep

PV system design calculator with battery backup Instructions on using the calculator The PV system design calculator calculates the output power requirements, number of panels, number of batteries, and all the rest of the outputs dynamically. There are various loads listed on the calculator whose number can be increased to

Wavelength (nm), Frequency (THz), and Energy (eV) calculator The following calculator calculates the wavelength in nm to the frequency in THz, the wavelength to energy in eV, frequency in THz to wavelength in nm, frequency in THz to energy in eV, energy in eV to wavelength in nm, and energy

Harvesting wind energy using wind turbines A wind turbine is a device that converts the energy in the flow of wind to electricity. In order to capture the wind energy, a wind turbine is employed. The wind drives the blades of a wind turbine which is connected to the rotor

3D simulations using software We covered 2D simulations in our previous discussion on 2D thin film calculations. Here we will introduce the software techniques which are employed to find the reflection, transmission, and phase from 3D objects, and to optimize the resonances produced by the said objects. We will only

Operation modes of DC microgrids The major component of the DC microgrid’s operation is the grid voltage converter (GVC) , which is responsible for maintaining a constant voltage at the DC bus. There are three different operation modes of DC microgrids. These operation modes of DC microgrids are written below.