Eminent scientist's 160-year-old theories aid light wave discovery

Credit: Petr Kratochvil/public domain

A previously unknown type of light wave has been discovered by researchers, based on the pioneering work of a 19th century Scottish scientist.

Equations developed by renowned mathematician and physicist James Clerk Maxwell have helped to reveal how crystals can be manipulated to produce a distinctive form of wave.

The phenomena—recently named Dyakonov-Voigt waves—could have a range of useful applications, such as improving biosensors used to screen or developing fibre optic circuits that transfer data more efficiently.

Scientists and engineers from the University of Edinburgh and Pennsylvania State University made the discovery by analysing how light—which travels in the form of waves—interacts with certain naturally occurring or man-made crystals.

They found that Dyakonov-Voigt waves are produced at a —known as an interface—where the crystals meet another material, such as oil or water. These waves can be produced only using certain types of crystal whose depend on the direction in which light passes through them, researchers say.

The team identified the waves' using mathematical models that incorporated equations developed by James Clerk Maxwell. Since the mid-1800s, research on how light interacts with crystals has built on the work of Maxwell, who studied at the University of Edinburgh from the age of 16.

Dyakonov-Voigt waves, named after two leading scientists, diminish as they move away from the interface—a process called decay—and travel only in a single direction, the team found. Other types of so-called surface waves decay more quickly and travel in multiple directions.

Dr. Tom Mackay, of the University of Edinburgh's School of Mathematics, who jointly led the study, said: "Dyakonov-Voigt waves represent a step forward in our understanding of how light interacts with complex materials, and offer opportunities for a range of technological advancements."

The study is published in Proceedings of the Royal Society A.

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More information: Tom G. Mackay et al, Dyakonov–Voigt surface waves, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences (2019). DOI: 10.1098/rspa.2019.0317
Citation: Eminent scientist's 160-year-old theories aid light wave discovery (2019, September 3) retrieved 17 September 2019 from https://phys.org/news/2019-09-eminent-scientist-year-old-theories-aid.html
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Sep 03, 2019
"The team identified the (Dyakonov-Voigt) waves' unique properties."

These unique properties can be found by googling Dyakonov-Voigt waves, but cannot be mentioned in an article about them.

Sep 03, 2019
at the bottom of the article is listed the links for the abstract posted by the researchers

as with many of the articles posted to this site
the above article may have used the published material
or, more likely
the writer interviewed one or more of the participating researchers

& based the above article on his understanding/interpretation of what the interviewed may or may not have told him

then an editor skimmed it to come up with a snappy, clickbait headline

Sep 04, 2019
google scalar another property of light , even weirder that was in early equations , non hertzian (time) component (tertiary aspect of em radiation) then if you don't like that look up torsion waves , post Soviet Union breakup a lot of this research was translated but now only considered fringe classified or esoteric. for a more formal teaching googol or youtube search t.e. bearden (lt colonel) retired usa

Sep 09, 2019
Simple puzzle, locate the dots!

Sep 09, 2019
Get the point! Points! Geometrically, each point sees every other point! Geometry!

Sep 09, 2019
Only the centers of bipolar E Fields Exists! E/4PiR^2= the value at the center. The center moves, i.e. complies with the field at every instant in time. Look at it this way: Set c=1; T=Lambda;q=+/-1;

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