Rajaji Vincent

10 Questions 13 Answers 0 Followers

Questions related from Rajaji Vincent

What are the industrial collaboration opportunities for the Photovoltaic applications in Europe and Asia (India)?

I would like to explain my question with the following illustrative situation. I am experimental physicist. Recently, we have done some experiments on one halide based materials which show the...

25 July 2022 5,939 0 View

What is the minimum energy required to change the orbital angular momentum or orbital energy in crystalline materials?

What is the minimum energy required to change the orbital angular momentum or orbital energy? I would like to explain my question with the following illustrative situation. In general, when we...

19 July 2022 3,248 6 View

What is the closest chemical analog (or similar) of the water (H2O) molecule?

I would like to explain my question with the following illustrative situation. In the water molecule, under suitable chemical conditions, it breaks into H+ and (OH)-. Similar way, Are they any...

13 January 2022 2,323 7 View

What is the formula used for calculating the penetration depth (skin depth) of light in a material? How does it related to dependent of the frequency?

I would like to illustrate this question below. I am using Raman spectrometer for studying the insulator to metal transition of materials. Does incident light depend the penetration depth of the...

11 April 2018 2,285 11 View

How do we measure the signal to noise ratio of the Raman spectrometer?

The signal/noise ratio is an important parameter of the spectrometer. Better the signal to noise ratio, better the spectrum’s quality. I am working in the Raman spectroscopy field. Based on the...

02 April 2018 8,025 8 View

How phonon softening is related to second order structural transition?

I would like to explain this question with following description. The system (crystal) can be perturbed by pressure, temperature, etc. Then the crystal may undergoes structural transition (from...

08 February 2016 7,971 3 View

What is the physical significance of derivative of bulk modulus?

In the high pressure XRD, pressure versus volume data is fitted by Birch-Murnaghan equation of state (BM-EOS). The fit will yield bulk modulus (B0), derivative of bulk modulus (B0’) and volume at...

01 February 2016 1,839 4 View

How can we identify and differentiate between electron - phonon coupling and phonon - phonon coupling through Raman scattering measurement?

Generally, the line width (full width at half maximum) of Raman peak signifies the life time of phonon as FWHM is inversely proportional to life time. This life time may increase/decrease...

26 January 2016 858 7 View

What will be the effect of electric field on Raman mode frequency and it’s FWHM (Full Width at Half Maximum)?

The study of external perturbation to the Raman modes is very novel and well understood. For example, pressure and temperature effects on solid are given below. Pressure effects: 1. The...

04 January 2016 1,799 2 View

What are the industrial collaboration opportunities for the Photovoltaic applications in Europe and Asia (India)?

I would like to explain my question with the following illustrative situation. I am experimental physicist. Recently, we have done some experiments on one halide based materials which show the...

01 January 1970 9,775 0 View