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Questions related from Shamsul Arafin
It is well-known that distributed feedback (DFB) and distributed Bragg reflector (DBR) lasers include gratings along their waveguides to provide wavelength selective...
08 August 2015 1,388 6 View
To evaluate the material quality, I have measured the XRD of my as-grown structures by performing theta-2theta (TTH) scan which exhibits poly-crystallinity as shown in the attached file. I have...
05 August 2014 2,851 53 View
Can someone provide me any references which report the relative magnitude of the slow decaying component to fast decaying component A2/A1 in a biexponential decay function of the time-resolved...
02 June 2014 5,590 3 View
I would like to use graphene film as a substrate material lying on SiO2/Si. For predicting the growth mode, I would need to know the width of atomically flat terrace. As it is known, the substrate...
18 December 2013 3,341 1 View
As we know, there are different scanning modes like 2theta scan (scanning of the diffracted beam) and 2theta/omega (scanning of the incident and diffracted beam). My question is what additional...
27 November 2013 6,325 9 View
Does anyone have experience with it? I would like to know what is meant by molten KOH? Is it different from KOH solution? In particular, I would like to determine the etch pit density of my...
29 August 2013 3,619 4 View