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Questions related from Sumit Mishra
I recorded the cpmgpr1d/zgpr water suppressed proton spectra for plant samples. 1.) what is the protocol/step to identify/confirmation of the exact metabolite in proton nmr spectra ? 2.) There...
15 August 2018 2,549 4 View
I want to ask about random lasers in which there is no cavity, so how we can achieve population inversion for lasing action ?
16 September 2015 9,154 11 View
is there any free software available to design a vacuum chamber with specified parameters ?
18 August 2015 2,391 7 View
When we shine a laser beam to the both side of the mirror (silver coated and uncoated), I am not getting fringes. How can we recognise both the surfaces? Is there any problem with my technique ?
23 May 2015 3,260 15 View
As the atomic selection rules says that s to s transitions are not allowed i.e. there must be a change of the angular momentum ?
07 May 2015 10,035 3 View
what are their (femto, pico second pulses ) advantages over nano pulses.
22 April 2015 8,100 5 View
We have two electrodes in a vacuum chamber and we applied a d.c. voltage . plasma formation is possible or not ? what will be the effect if we apply an a.c. voltage source ? what should be the...
16 April 2015 476 26 View
what are the applications and advantages of both techniques?
05 April 2015 7,132 3 View
As we know LIBS is mainly used for the elemental analysis of a material. Is it possible to use femto-second and atto-second lasers? If it is possible then which is a suitable technique and why? Is...
23 January 2015 9,341 9 View
In powder form we use the diffuse reflectance mode. After that we convert data in absorption by using kubelka munk function. [from that absorption spectra we see the maximum intensity peak profile...
04 October 2014 8,476 4 View
What is the role of phonon energy in different glasses? What is the significance of low and high phonon energy in the different glassy system?
02 October 2014 6,636 8 View
What is the meaning of diffuse and specular reflectance in the case of UV VIS when we are recording in the form of powders (glasses)?
30 September 2014 6,414 3 View
If it is possible then what will be excitation wavelength for this system?
29 April 2014 8,500 3 View