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Q: What is difference in plasmon peak and exitonic peak?
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What is SPR?

Surface Plasmon Resonance


Reason for yellow color in silver nanoparticles?

Basically without math, certain metals have elecrons that are "free" silver is one of these metals. These free electrons are necessary for a condition called a surface plasmon to exist. Now silver particles in an aqueous solution will have two parts to its refractive index, that of the water and that of the silver nanoparticles. Next is the interaction of light. Photons can be thought as particles or waves, in this case we will think of them as waves. When an electromagnetic wave interacts with the surface plasmon mode it causes the free electrons that are part of the surface plasmon to oscillate, usually in anti phase to the electromagnetic wave. This essentially causes certain wavelengths of light to be blocked from propagating, causing them to be reflected and giving the colour that you see. Im actuallydoing some research on silver nanoparticles at the moment, and we can change this colour from yellow to almost anything that we want. For a yellow colour we see a plasmon resonance peak ca. 420nm but based on the size and shape of the silver nanoparticles we can tune the plasmon resonance peak. Mie theory can be used to calcuate the extinction co-efficents. The reason why this is also called the surface plasmon is that the light waves will not penetrate more than 50nm so the interactions at the surface are the most important.


What is the difference between Peak and off peak?

peak is when the demand of electric power is very high, and off peak is when the demand is low


What is the difference between the white peak and the dark peak?

white peakcan see but dark peak can no see easily white peak can attaract eveerybody


What is peak to peak?

Peak to Peak is the most positive peak to the negative peak value. Or find any peak value and multiply by 2.


How is the peak potential difference shown?

DIFFERENTAITION


What is Surface plasmon resonance?

it's a collective oscillation of the free electrons at the boundary between a dielectric and a metal, typically. The resonance character comes from the coupling between an electromagnetic field and this charge oscillation, which is best described as a plasmon-polariton.


What is the difference between mean and peak power?

Mean power is measured in Watts and Peak power is measured in KW.


What is the difference between the FEV1 and peak expiratory flow?

FEV1 is the peak during the first second of exhalation only.


What is the difference between peak inspiratory pressure and plateau pressure?

20


What is the difference between a mountain and a peak?

A mountain is a landmass that projects conspicuously and is always higher than a hill. A peak is the highest point of a mountain.


Is there a difference between the Crest and the Peak Dilation of Sinusoidal Signal?

They are the same thing.