Magnetically Controlled Reflection of a Ferrofluid Cell

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Figure 29 - Spectrograph readings of the blue filter with the ferrofluid cell.
In Figure #29, I am showing the ferrofluid cell responses to the 'blue' filter. More correctly, the non-scattering of the blue light. If it wasn't for the infrared readings I would thought that we had an equipment problem.
In Figure #29, we are showing the effects of the 'blue' filter from the viewpoint of the camera. Interesting we still have the low gauss edge effect and the white eye brow line but the hysteresis shape is missing in the blue channel.
Not sure what to make of this because the baseline blue channel of Figure #24 has the hysteresis shape but it is missing in the blue channel of Figure #30. More experiments will be needed to explain this inconstancy. Is the blue pattern from the baseline image missing, or did we not met a minimum level of blue photons to show it?
The light levels from the white dust and the flaws in the glass seem to show that the camera is working properly in Figure #30..

Figure 30 - Picture of north and south magnetic poles using a blue filter.
Fourth Experiment: After my spectrometer showed that the ferrofluid cells scatter light at infrared frequencies; I wondered about the infrared images, and proceeded to convert one of my Nikon 995 cameras to be sensitive IR frequencies.

I removed the ‘Hot Mirror’ in front of the camera's CCD and this allows the camera to see in the 700-1000nm range. Then I used a set of IR camera filters to block the visible frequencies. The filter set came with 720nm, 850nm, and 950nm filters.

The 720nm camera filter passes some visible red frequencies and they are showing up in the red data channel of the camera. The modified blue and green channels pick up about the same amount of the IR signal which then shows up as the color white in Figure #32 and Figure #33. Figure #31 is a picture of the applied field of the nine magnets from Figure #12.

The pixel noise in Figure #33 comes from the eight second exposure times needed at 950nm. Basically Figure #31, Figure #32, and Figure #33 are confirming the NIR spectrograph readings of Figure #16. In other words, the ferrofluid cells work in NIR frequencies and we can find the same structures in the NIR photographs as the optical frequencies. Notice the 'red', 'yellow' and 'brown' features are present in NIR.

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