Eric Fossum

So, you are talking about the shot noise of no signal, which is zero. I don't like "Poisson modulation" - it just gets the physics totally wrong. But the answer is the same. No signal, no noise. In ...

Did you mean lower in read noise? Here is data taken over the weekend by one of my PhD students.  Not our lowest read noise device-type that will be tested at low temp later this week, which is ...

Perhaps I don't understand this last sentence at all but it seems to me it it totally incorrect.  The pixels would have a range of values, and the processed pixels would thus have a range of ...

I believe these are the transmission curves of the filter material only.  Indeed, a NIR cut filter is needed to remove the far end of the red filter material transmission.

Here is the catalog. http://www.fujifilmusa.com/products/semiconductor_materials/image-sensor-color-mosaic/index.html

This is a one-hour long video recorded at the Univ. of Illinois a week ago. http://image-sensors-world.blogspot.com/2018/04/quanta-image-sensor-lecture.html Almost anyone who reads this forum will ...

This is a great research group and SPAD arrays have been used by them to test some of the QIS theories and promises so far. Long term, SPADs are unlikely to be used for large arrays (SOA is now ...

Not my assertion! That plus "shoot silently" seemed like a simplification or misunderstanding of something. Yes although I dont know the exact sequence.  These are usually set by trial and error by ...

What DR challenge?  High end, low end? Why don't you describe a procedure for determining the required "time chunk?" Then, think about how this would be better than combining two separate ...

I think "equivalent" has been beaten to death here already. But, I want to just point out that this entire discussion is stuck in 20th century photography concepts. I think photography in the 21st ...

Ha ha, best witticism in this forum of the year, so far!

So, pretty much a measure of how much water came through a water faucet while it was turned on. Independent of how deep the sink is, how much gets in each muffin tin pocket that may be at the ...

Well, really it is a matter of accuracy.  If we know they are visible photons, we can get within a factor of 2 or better.  (Assuming this thread is about visible photons).

Count me in.  Perhaps you can explain it to me! Or are you one of the confused experts too?  Explain the square mm units, for example.  Thx.

Maybe you can communicate to me, at least, what "total light" is. I thought I knew but the last few responses leave me wondering. If I come to understand what you mean by the phrase, perhaps we ...

Yes, you are on the right track, but what you are fishing for is phonon momentum aka crystal vibrations.

Let's stick to the subject matter at hand, detection of visible light. An electron with 2 eV kinetic energy has 700X the momentum of a 2eV photon, just to put things in context. Momentum is always ...

The flat top is always interesting.  When the average (say, H) is an integer number, then P[k=H] = P[k=H-1] which gives the flat top.  Definitely not Gaussian! And as Jim mentioned, it is a ...

Both energy and momentum need to be conserved. Since an excited electron has energy and momentum, and a photon has energy but negligible momentum (it has no mass) the yield is more complicated ...

The wording here is the tricky part. If you know you have 10 photons impinging on a pixel (which we almost never know for sure in regular life) then the number of photoelectrons, determined as an ...