Upkar Kumar

5 Questions 25 Answers 0 Followers

Questions related from Upkar Kumar

How to find out whether surface polaritons are getting strongly coupled with quantum dots or not?

I have fabricated a periodic array of cylindrical nanoparticles and taken the transmittance spectrum. The single particle resonance dip that I am getting for the sample is getting blue shifted...

04 April 2013 7,475 10 View

Why is there a split in single particle resonance dip (in transmission spectra) when the periodicity of nanoantenna arrays is increased?

I have fabricated Ag nanoantenna arrays on glass. It consists of cylindrical nanoantennas at constant separation in symmetrical environment. I have observed a splitting of single particle...

04 April 2013 4,504 9 View

Does anyone have idea about the change in spectra of CdSe/ZnS quantum dots on aggregation?

I am getting two dips in transmission spectra other than at absorption wavelength for CdSe/ZnS quantum dots. I am not sure about the reason but aggregation could be a reason behind it? Does...

03 March 2013 6,041 13 View

Which resistance would be better for silver nanodot fabrication using EBL?

If I need to fabricate silver nanodots (circular) using EBL which would be the better way out of the two mentioned below? (1) I use PMMA as a resist. (2) I use a layer of MMA followed by a layer...

02 February 2013 8,757 1 View

How to synthesize spherical gold nanoparticles?

Can anyone tell me how to synthesize spherical gold nanoparticles exhibiting surface plasmon characteristics? Currently I am using pulsed laser deposition technique to synthesize gold thin island...

09 September 2012 2,132 2 View