| mang2004 |
2019-09-05 02:17 |
Eminent scientist’s theories aid light wave find ZG29q> a<c]N:1 0!<qfT
a A previously unknown type of light wave has been discovered by researchers, based on the pioneering work of a 19th century Scottish scientist. u^HC1r|% S{HAFrkm7 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 light wave. <$6r1y*G 6V{Sf9V| The phenomena – recently named Dyakonov-Voigt waves – could have a range of useful applications, such as improving biosensors used to screen blood samples or developing fibre optic circuits that transfer data more efficiently. 87; E#2 gEghDO_G Wave discovery [Dr' ?VUU[h8"v5 Scientists and engineers from the University of Edinburgh and Pennsylvania State University made the discovery by analysing how light – which travels in the form of waves – interacts with certain naturally occurring or man-made crystals. +ZFw3KEkz CD}::7$ They found that Dyakonov-Voigt waves are produced at a specific region – known as an interface – where the crystals meet another material, such as oil or water. 99<]~,t=5 =<yMB d\ These waves can be produced only using certain types of crystal whose optical properties depend on the direction in which light passes through them, researchers say. E@}N}SR /V-uo(n< . Original equations =geopktpf >6Y@8 ) The team identified the waves’ unique properties 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. bSa%?laS cQg:yoF 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. f4%Z~3P k
P]'
|
|