If we talk about one dimentional spectrum than it is way differnet form 3D as the partices can not pass in 1D , some of the researchers in Japan and France are working over to artificially create a unique ID that will be a nano electric system on the solid surface  thsu by taking control over the photo emitted electrons making it simple . This group of scientists will be eradicating the mystry of the unique property of the 1D anno electronic system information helpful for the prediction of electrons confined in extremely fine metal nanowires used in next-generation semiconductor devices.

They will be working on the phenomenon of the spectroscopy that is a method to observe the kinetic momentum and thus bind the energy in solid by just shedding the light on the solid thus study the movement of electron in wide scope.