Broadband essentially here mean the different frequency range or the large wavelength range. Broad band optical limiter is one which exhibits optical limiting behavior over a broad range of wavelength. Typically - in the visible and IR spectral range as we have many optical components or sensors(eye /cameras) responding in this wavelength range.
Optical sources like LEDs use direct band gap so that conduction band electorn can recombine directly with a hole in valence band .
Blackbody radiation is a broad uninterrupted band of radiant energy.
A mobile broad band is better than a cable broad band when one needs internet connectivity outside of ones dwelling place. Mobile broad bands are usually a lot slower than cables, but they offer the bonus of being logged on when moving around major cities. Out in the country mobile broad bands may have limited or zero connectivity.
120 channels / 80 channels on C band and 40 on L band
broad band
By connecting to the internet
Some examples of indirect bandgap materials include silicon, germanium, and gallium arsenide. These materials have a bandgap structure in which electrons have different momentum in the conduction band compared to the valence band, making optical transitions less likely.
The band gap can be calculated using various methods, with the most common being optical absorption spectroscopy and electrical conductivity measurements. In optical absorption spectroscopy, the band gap is determined by identifying the energy at which absorption begins in the material's spectrum, indicating the energy required to excite an electron from the valence band to the conduction band. Alternatively, in electrical conductivity measurements, the band gap can be inferred from the temperature dependence of the conductivity, applying the Arrhenius equation to determine the activation energy. For semiconductors, the band gap can also be calculated using techniques like density functional theory (DFT) in computational modeling.
Energy bands form in solids due to the overlapping of atomic orbitals as atoms come together to form a crystal lattice. The energy levels of the individual atoms combine to form a continuous band of energy levels for electrons to occupy. The band structure of a material determines its electrical and optical properties.
broad band
Electromagnetic Radiation
"Yes. They offer broad band plans. They have the broad band cards that can fit your needs, from one computer to a business. The plans work with your needs."