New discovery: A Hidden Magnetic Effect of Light

[Giray Khan the Brave]

I was just browsing through today's Fortean Times Breaking News page and saw this:

_http://www.sciencedaily.com/releases/2011/04/110414161404.htm

In a nutshell: "Light has electric and magnetic components. Until now, scientists thought the effects of the magnetic field were so weak that they could be ignored. What Rand and his colleagues found is that at the right intensity, when light is traveling through a material that does not conduct electricity, the light field can generate magnetic effects that are 100 million times stronger than previously expected."

I found this particularly interesting as the Cs have previously mentioned that there is a close connection between light and magnetism but I could never find a satisfactory (for me) explanation for this effect in current 'accepted' scientific thinking. Maybe this is also in the category of another hit for the Cs?

I've also been wondering if the reason why this effect had been overlooked for so long is simply because it didn't exist before but is now coming into play due to the approach of the Realm Border.

busy busy busy :)

 

[HiThere]

Interesting find, thanks for the link!

 

[RyanX]

This was actually posted on SOTT here:

http://www.sott.net/articles/show/227224-Solar-power-without-solar-cells-A-hidden-magnetic-effect-of-light-could-make-it-possible

:)

 

[HiThere]

Missed that one

 

[ark]

The effect is rather old. Has been discovered by Morichini,

It was then researched by Felix Ehrenhaft (probably Ledskalnin was studying Ehrenhaft's works)

but physicists were neglecting this fact.

The same way they neglect magnetic monopoles observed by Ehrenhaft:

 

[Giray Khan the Brave]

Thanks for that Ark, it's fascinating. Can it be that a magnetic monopole is actually a photon displaying a different (i.e. magnetic) aspect of itself? If not, it still seems as if they are very closely related. What I find most intriguing about all this is a new intimation (for me) of of how information might be encoded onto light using magnetism, or vice versa. Amazing! :)

 

[ark]

There are theories (for instance by Lochak) that consider magnetic monopoles as travelling with the speed of light. There are other theories where they are superluminal (but "travelling" along spirals). I, personally, opt for this latter possibility. Of course mainstream physicists laugh at both theories.

 

[Lindenlea]

In a nutshell: "Light has electric and magnetic components. Until now, scientists thought the effects of the magnetic field were so weak that they could be ignored. What Rand and his colleagues found is that at the right intensity, when light is traveling through a material that does not conduct electricity, the light field can generate magnetic effects that are 100 million times stronger than previously expected."

Would this be the sort of energy the Atlanteans would have used with their huge crystals, according to Edgar Cayce? That has always intrigued me especially when I was looking into Solar powered homes.

 

[monksgirl]

Thanks for that Ark, it's fascinating. Can it be that a magnetic monopole is actually a photon displaying a different (i.e. magnetic) aspect of itself? If not, it still seems as if they are very closely related. What I find most intriguing about all this is a new intimation (for me) of of how information might be encoded onto light using magnetism, or vice versa. Amazing! :)

how is light encoded as digital data in fiber-optics?

 

[doublea1535]

Thanks for that Ark, it's fascinating. Can it be that a magnetic monopole is actually a photon displaying a different (i.e. magnetic) aspect of itself? If not, it still seems as if they are very closely related. What I find most intriguing about all this is a new intimation (for me) of of how information might be encoded onto light using magnetism, or vice versa. Amazing! :)

how is light encoded as digital data in fiber-optics?

The basic answer is that pulses of light, photons, are sent to represent digital 1's and no pulses are sent to represent digital 0's.

 

[monksgirl]

Thanks for that Ark, it's fascinating. Can it be that a magnetic monopole is actually a photon displaying a different (i.e. magnetic) aspect of itself? If not, it still seems as if they are very closely related. What I find most intriguing about all this is a new intimation (for me) of of how information might be encoded onto light using magnetism, or vice versa. Amazing! :)

how is light encoded as digital data in fiber-optics?

The basic answer is that pulses of light, photons, are sent to represent digital 1's and no pulses are sent to represent digital 0's.

thank you, so it is the same as binary on/off in any computer chip

 

[doublea1535]

thank you, so it is the same as binary on/off in any computer chip

Right. All digital (computer) communications functions in this same way. Everything is a 1 or a 0, it is just a matter of how they are represented through physical media.

 

[Giray Khan the Brave]

It is interesting to think that if the magnetic encoding of light ever became possible the information carrying capacity of fiber-optics would double or triple (or maybe even quadruple) and the current on-off method of encoding information would become stone-age technology almost overnight. The reason being that a medium that can carry a frequency that can be encoded with information can also carry multiple frequencies simultaneously, thereby 'multiplexing' the information capacity. Such an achievement would probably be an unprecedented breakthrough and a revolution in Information Technology. Which of course would make one wonder how fast STS would co-opt it and what they would use it for...

 

[Benjamin]

There are theories (for instance by Lochak) that consider magnetic monopoles as travelling with the speed of light. There are other theories where they are superluminal (but "travelling" along spirals). I, personally, opt for this latter possibility. Of course mainstream physicists laugh at both theories.

I don't understand magnetic monopoles and the like. I only did a search for them because I started reading your link about Felix Ehrenhaft. Anyway, there was an article published in Nature, Dec. 5, 2023, that talked about monopoles. One diagram mentioned that the 'a-Bloch meron' had a counter-clockwise spin, and in the other diagram it had a clockwise spin, if I understand this correctly. You may have already seen this article, it may be junk, I've read a little bit but it's quite beyond me.

Revealing emergent magnetic charge in an antiferromagnet with diamond quantum magnetometry

Abstract

Whirling topological textures play a key role in exotic phases of magnetic materials and are promising for logic and memory applications. In antiferromagnets, these textures exhibit enhanced stability and faster dynamics with respect to their ferromagnetic counterparts, but they are also difficult to study due to their vanishing net magnetic moment. One technique that meets the demand of highly sensitive vectorial magnetic field sensing with negligible backaction is diamond quantum magnetometry. Here we show that an archetypal antiferromagnet—haematite—hosts a rich tapestry of monopolar, dipolar and quadrupolar emergent magnetic charge distributions. The direct read-out of the previously inaccessible vorticity of an antiferromagnetic spin texture provides the crucial connection to its magnetic charge through a duality relation. Our work defines a paradigmatic class of magnetic systems to explore two-dimensional monopolar physics, and highlights the transformative role that diamond quantum magnetometry could play in exploring emergent phenomena in quantum materials.

...

a, Atomic structure of α-Fe2O3 (Fe and O atoms in the yellow/green and grey spheres, respectively). b, Discrete representation of the alternating ferromagnetic sublattice magnetization (yellow cones) and (green cones) with AFM coupling along the c axis shown in a. c, Illustration of the whirling staggered magnetization (grey cones), forming an anti-clockwise a-Bloch meron, and the resultant canted magnetic moment (red cones). d, Illustration showing the relationship between , , and and the canting angle Δ. e, A scanning diamond sensor with a single NV centre maps out the magnetic () field generated near the sample surface. f, Energy diagram of the NV ground states (GS) of |±1〉 and |0〉 sublevels. A microwave field drives the GS spin transition, whereas a 532 nm laser excites the NV to the excited state (ES) (green arrow). The NV then undergoes a radiative decay to GS (red arrow) or a non-radiative and spin-selective path via the intersystem crossing (ISC) (blue arrow), enabling ODMR acquisition. g,h, ODMR (mapped as the normalized photoluminescence (PL)) along the fast-scan direction, measured on the α-Fe2O3 thin film at T = 4 K (g) and across TM at 300 K (h). The fitted f+(BNV) is plotted as a white line in each panel. i,j, B<em>z</em> images retrieved from fitted BNV maps reveal distinct field signatures across TM. The dashed lines in i and j correspond to fitted BNV traces in g and h, respectively. Scale bars, 1 μm.

...

a–d, Three-dimensional visualization of in the volume above an assortment of topological AFM textures. The streamtubes illustrate the magnetic field lines of above an anti-clockwise a-Bloch meron (a), a clockwise a-Bloch meron (b), an ADW (c) and an antimeron (d). The girth and colour of each streamtube vary with the magnetic field norm and the z component of field (B<em>z</em>), respectively. e–h, Magnetic charge density (σm) distributions retrieved from the downward continuation of a–d reveal a magnetic monopolar (e), anti-monopolar (f), dipolar (g) and quadrupolar (h) charge character associated to an anti-clockwise a-Bloch meron, clockwise a-Bloch meron, ADW and antimeron, respectively. Scale bars, 200 nm.

...

 

[heinrich]

The effect is rather old. Has been discovered by Morichini,

It was then researched by Felix Ehrenhaft (probably Ledskalnin was studying Ehrenhaft's works)

but physicists were neglecting this fact.

The same way they neglect magnetic monopoles observed by Ehrenhaft:

it is a real pleasure to read an input by ark... merci beaucoup.