Is there a thorough Thermodynamic analysis of radiation emitted from finite size objects?

It is well known that finite size objects can emit radiation beyond the Planck ( or black body) limit. Is there a good thermodynamic base explanation for this phenomenon?

02 March 2018 1,886 1 View

What are the units of intensity of a laser beam?

What are the units of intensity of a laser beam? as an example say Gaussian laser beam. is it W/m2? in some document they have stated this as " irradiance" Then in that case units of W/m2 is ok....

10 November 2017 8,951 24 View

Is it possible to exceed the mean occupation number ( number of photons per mode) of black-body radiation?

Boltzmann distribution determines the expected occupancy of the modes in thermal equilibrium. Are there any passive ways of increasing the occupancy number?

06 July 2017 9,244 3 View

What is the rationale method for deciding whether going for high efficiency or high throughput in power generations?

06 July 2017 465 4 View

Anybody know a good dye that can absorb about 1 micron to 2 micron range to be used in Dye-Sensitized Cells?

05 June 2017 2,989 2 View

What is Gaussian Schell-model source?

09 October 2016 5,016 0 View

What is fresnel entropy?

08 September 2016 2,474 0 View

How does the enhanced near-field due to nanoparticles increase the absorption in the semiconductor?

31 December 2015 8,994 4 View

Is it possible to phonon-photon interaction in solids?

08 September 2015 6,111 0 View

What are the factors that determine (decide) the fabrication cost of different nano-particles?

05 June 2015 824 5 View

What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Zno nano particles colour changed from white to grey in process of calcination any suggestions?

In the formation of Zno nano particles process, after drying at 120 degree C, my zno nano particles are completely white but when i calcine it for 450 degree C it converts into grey colour. i...

26 February 2021 2,435 4 View

QPCR tubes for Roche Lightcycler Nano?

We own a small cPCR thermal cycler from Roche, Lightcycler Nano, which is convenient for backup quick runs. Recently, Roche has discontinued the plastics for it and they offer no alternative from...

17 February 2021 8,694 5 View

Best synthesis method for large scale silver nanoparticle synthesis with high yield?.Best post processing steps after nanoparticle synthesis?

I have chemically synthesized silver nanoparticle to combat microbes on wound site. I have used many methods of synthesis, but I found minimal field of silver NP product.I am getting whitish...

11 February 2021 4,964 13 View

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways?

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways? Are there simpler methods for Nano polymers (other than those obtained with...

09 February 2021 5,783 3 View

Concentration of DNA?

Hello everyone! Is a normal value 295.8 ug/ul for cDNA? If not what does it mean? Where is the mistake? The measurement was done with nano drop. Thank you!

09 February 2021 6,202 1 View

How can I calculate volume fraction of MWCNT from a nano hybrid composite ?

I am adding 0.1wt percent MWCNT to glass fiber epoxy composite and want to determine the volume fraction of the MWCNT from this composite but I don't know how to calculate it. can anyone help me...

09 February 2021 8,883 3 View