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It was thought next to impossible of seeing an electron move. But scientists at the Lund university filmed a .03 sec movie which was the result of the elongation of the 150 attosecond phenomenon.
“It takes about 150 attoseconds for an electron to circle the nucleus of an atom. An attosecond is 10-18 seconds long, or, expressed in another way: an attosecond is related to a second as a second is related to the age of the universe,” says Johan Mauritsson, an assistant professor in atomic physics at the Faculty of Engineering, Lund University. He is one of seven researchers behind the study, which was directed by him and Professor Anne L’Huillier.
“By taking several pictures of exactly the same moment in the process, it’s possible to create stronger, but still sharp, images. A precondition is for the process to be repeated in an identical manner, which is the case regarding the movement of an electron in a ray of light. We started with a so-called stroboscope. A stroboscope enables us to ‘freeze’ a periodic movement, like capturing a hummingbird flapping its wings. You then take several pictures when the wings are in the same position, such as at the top, and the picture will turn out clear, despite the rapid motion,” clarifies Johan Mauritsson.
[...] Sriharsha Makkuva wrote an interesting post today onHere’s a quick excerpt It was thought next to impossible of seeing an electron move. But scientists at the Lund university filmed a .03 sec movie which was the result of the elongation of the 150 attosecond phenomenon. “It takes about 150 attoseconds for an electron to circle the nucleus of an atom. An attosecond is 10-18 seconds long, or, expressed in another way: an attosecond is related to a second as a second is related to the age of the universe,” says Johan Mauritsson, an assistant professor in atomic physic [...] Read the rest of this great post here…..
hi harsha!
Nice post there… But I couldnt see the video…some technical prob with you tube