[hamdani yusuf (OP)]

What's the real frequency?

Badly defined because of the uncertainty principle.

Can a single photon have more than one frequency?

[alancalverd]

No. E = hν

[Bored chemist]

What's the real frequency?

Badly defined because of the uncertainty principle.

Can a single photon have more than one frequency?

Yes, because of the uncertainty principle.

[hamdani yusuf (OP)]

No. E = hν

Yes, because of the uncertainty principle.

I don't think that both answers can be correct.

[hamdani yusuf (OP)]

Here's a recent video explaining about uncertainty principle, and it's relationship with Fourier transform.

[alancalverd]

Thanks to indeterminacy you can't predict the energy of a given photon, nor the time at which it will arrive at a point,  with absolute accuracy, but as far as the photon is concerned it only has one energy.

[Bored chemist]

The energy of a photon is like the mind of God, It may very well exist.
Some people will tell you in detail  what they think it is.
And it's impossible to verify.

[alancalverd]

But very easy to determine what it was before you measured it!

[hamdani yusuf (OP)]

But very easy to determine what it was before you measured it!

How is it?

[hamdani yusuf (OP)]

Thanks to indeterminacy you can't predict the energy of a given photon, nor the time at which it will arrive at a point,  with absolute accuracy, but as far as the photon is concerned it only has one energy.

Having one energy doesn't necessarily mean having one frequency. Mathematically, a single narrow frequency requires extremely long duration of sinusoidal wave.

[hamdani yusuf (OP)]

But these are not enough to explain the sparkling effect.

I think it perfectly explains the effect. 
Do you now realize that the sparkling is not quantized?

We know for sure that electronic sensors are spatially quantized, although it isn't necessarily true that every pixel has the same size or sensitivity.
Do you think it has no observable effect?

This video shows the sparkling effect using a relatively low resolution camera sensor.

The presence of other effects, like diffraction, flaring, scattering, and various sizes of the ripple makes it hard to exclusively observe the sparkling effect.

[hamdani yusuf (OP)]

In this video the quantization of the sparkling effect is most visible around time 0:50 to 1:00 mark, when it's zoomed in. It's unfortunate that the camera is out of focus which makes the bright spots blur.

[hamdani yusuf (OP)]

If you are still convinced that there's no quantization effect whatsoever in the sparkling of rippling water surface when reflecting sunlight, I'm curious what does it take to make you change your mind?

[hamdani yusuf (OP)]

The presence of other effects, like diffraction, flaring, scattering, and various sizes of the ripple makes it hard to exclusively observe the sparkling effect.

In modern digital cameras, including those in smart phones, software filters and image processing algorithms can also affect the results of sparkling effect.
The resolution of the video files are typically lower than the resolution of main camera sensor. In my video, the resolution is 0.92 megapixels (1280 x 720), although the main camera itself has resolution of 50 megapixels. Some image processing must be involved in reducing the resolution.

[hamdani yusuf (OP)]

This short video shows the sparkling effect in slow motion.

[hamdani yusuf (OP)]

I've recorded for a new video showing this sparkling effect. In one of the cut scenes, there's visible effect of diffraction caused by trace of wiped sweat on the camera glass. But the sparkling tiny bright spots don't seem to be diffracted.

[Bored chemist]

If you are still convinced that there's no quantization effect whatsoever in the sparkling of rippling water surface when reflecting sunlight, I'm curious what does it take to make you change your mind?

Evidence.

But you probably need to start by saying what you think quantization means.

[alancalverd]

Quote from: alancalverd on 23/10/2023 15:32:10
But very easy to determine what it was before you measured it!
How is it?

E = hν
Use a calorimeter or photocell to determine E. In theory, at least.

[Bored chemist]

Use a calorimeter or photocell to determine E.

I'm sure I heard about someone doing that.
It gave the wrong answer.
I think it's because they forgot about chemistry.

[hamdani yusuf (OP)]

I've recorded for a new video showing this sparkling effect. In one of the cut scenes, there's visible effect of diffraction caused by trace of wiped sweat on the camera glass. But the sparkling tiny bright spots don't seem to be diffracted.

Here are some of the screen shots.




The screenshots are 20 milliseconds apart, starting from the top left corner to the right, and ends up at the bottom right.
The images are taken from the same video. The top set are taken from different area than the bottom set, as you can see the difference in their brightness.