Sruthil Lal S B

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Questions related from Sruthil Lal S B

Why do real excitaions results in a reduction of the refractive index?

There are two distinct frequency regimes for nonlinear optics in semiconductors which correspond to real and virtual excitation. Real excitations usually result in a reduction of the refractive...

10 December 2022 8,546 2 View

Books or references on interaction of intense laser with materials at microscopic level?

Can anyone suggest any books or references dealing with the interaction of materials with intense laser pulses at microscopic level?. My intention is to understand what happens at the level of...

28 September 2021 1,765 4 View

How can we deduce optical selection rules and nature of optical transtions from the electronic band structure?

The figure attached here shows the electronic band structure of TiO2. Projected onto the band structure the weights of electronic orbitals. Such a representation helps us visualize the orbital...

20 August 2021 3,935 5 View

Is fractional coordinates same as reduced coordinates?

Is fractional coordinates same as reduced coordinates while describing the coordinates of atoms in a crystal lattice? The OCTOPUS code for TDDFT describes in its manual: ReducedCoordinates:...

01 January 1970 4,323 2 View