Why a dielectric material becomes transparent at higher frequency?

More KM Samaun Reza's questions See All

Other than vigorous reaction of Sodium with the water what are the reasons for which it is not used as a Heat Transmitting Fluid in CSP plants?

In the view of improving the efficiency of Solar Thermal Power Plants much research is going on the field of Heat transmitting Fluid. Liquid Metal, Pressurized gas, Ceramics and Nano fluids are...

08 September 2017 8,698 4 View

Is SSRN e-Journal Scopus indexed?

I have publication in SSRN. I want to know whether it is Scopus indexed? Does it show impact factor? What is its ISSN No.?

02 March 2021 4,565 3 View

Any research paper call for publication related to management or finance or economics?

It should be standard journal (Indexed)

01 March 2021 8,379 1 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

How to find fast publication Scopus Indexed (Q2) journals in Computer Science and Engineering?

Dear Researchers, I would like to find some (Q2) Scopus-Indexed journals with fast publication in the field of Computer Science and Engineering major?

28 February 2021 3,285 2 View

Scopus Index Journal List , 2021?

please provide me the most recent Scopus Index Journals List, February-2021

27 February 2021 3,545 1 View

How can be researcher's index developed?

What are the criteria to be followed to develop the researcher's index?

26 February 2021 9,051 0 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Which index or sites are reliable in determining of plant species?

There are many indexes when determining plant species: Plants of the World Online (POWO), International Plants Names Index (www.ipni.org), The Plant List (www.theplantlist.org) and others. But...

26 February 2021 3,404 10 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

A S Rao

Transparency is independent of frequency. If there is no aborption is there at any particular frequency then material transmitts that frequency. In case of absorption present, transparency is decided by absorption coefficient

Thomas Mayerhöfer

Transparency is not completely independent of frequency. To absorb, there must be resonance, i.e. either a rotation, vibration or electronic transition with a frequency equal to the light is excited in the material. If the frequency of the light is higher than the resonance frequency of the highest possible transition, than absorption can no longer take place, hence the material stays transparent and the index of refraction equals unity.

KM Samaun Reza

Thank you sir for the answers