I already knew that aspect, I just misread the article - it was a PHOTON scattering off of the atom (not an electron, which is what I thought they originally meant - that they were taking a picture of the scattered electron by watching the oscillation)
I already knew that aspect, I just misread the article - it was a PHOTON scattering off of the atom (not an electron, which is what I thought they originally meant - that they were taking a picture of the scattered electron by watching the oscillation)
silverpig
Lifer
- Jul 29, 2001
- 27,709
- 11
- 81
They are detecting the electron...
I think the experiment runs like so:
They use an IR laser to make electrons oscillate in a helium atom. They then use a short laser pulse from a second laser to rip the electrons off the atom. The electron then feels a weak applied electric field and drifts towards a detector where the image is generated. The rings seen are a diffraction pattern (I think... I still haven't read the paper). They can vary the timing between the two lasers to change at what point in the IR driven oscillation the short pulse laser rips the electron off.
I doubt it but....
it caaann be possible (maybe). Not a picture picture in the sense, but you can try to figure out what kind of shape it is? Hit the whole are with photos, keep doing it from all directions/energy ranges. Get a massive supercomputer and get it to calculate a 3d solution of the object encountered. yes, I know it will change everytime a photon hits it. That's why you try to counteract this change mathemetically estimated per every photon. I dunno if there is a supercomputer that intense, but eh.
it caaann be possible (maybe). Not a picture picture in the sense, but you can try to figure out what kind of shape it is? Hit the whole are with photos, keep doing it from all directions/energy ranges. Get a massive supercomputer and get it to calculate a 3d solution of the object encountered. yes, I know it will change everytime a photon hits it. That's why you try to counteract this change mathemetically estimated per every photon. I dunno if there is a supercomputer that intense, but eh.
JohnCU
Banned
- Dec 9, 2000
- 16,530
- 4
- 0
- Jan 29, 2005
- 24,770
- 12
- 81
Personally, I didn't even believe electrons were real until Yahoo! confirmed the video.
/sarcasm
Somehow, Yahoo confirming it doesn't mean anything to me. Is there an actual/reliable source? A University/physics site, at least?
pray4mojo
Diamond Member
- Mar 8, 2003
- 3,647
- 0
- 0
The Boston Dangler
Lifer
- Mar 10, 2005
- 14,647
- 2
- 0
so that's basically saying "we filmed the wake of a boat, but no boat."
what element is that supposed to be, anyway? something heavy, with all those orbits. or are those one orbit with motion blur? why is there no orbit visible across the middle?
Bill Brasky
Diamond Member
- May 18, 2006
- 4,345
- 1
- 0
Dunno if this helps any, but I found it interesting.
"Accumulating data from many ionization events, the team created clean images of the quantum state of electrons ionized at a single moment in the laser oscillation cycle. The images are the first of their kind that show such controlled electron-atom scattering. The team calls their system a stroboscope, after another device that uses periodic flashes of light to capture a still image of a hummingbird's wings, for example.
Each experiment generated a "bullseye" pattern showing the locations in which electrons struck the detector plate. To demonstrate that each image represented precisely one moment during the laser cycle--rather than , the pattern shifted upward; if the ionizing pulse came a half-cycle later, the bullseye shifted downward. This pattern shifting wouldn't have been possible with longer-lasting ionization periods.a range of ionization times--the team shifted the timing of the attosecond pulses with respect to the laser field cycle. If electrons were ionized at a time when the laser field gave them an extra boost upward"
"Accumulating data from many ionization events, the team created clean images of the quantum state of electrons ionized at a single moment in the laser oscillation cycle. The images are the first of their kind that show such controlled electron-atom scattering. The team calls their system a stroboscope, after another device that uses periodic flashes of light to capture a still image of a hummingbird's wings, for example.
Each experiment generated a "bullseye" pattern showing the locations in which electrons struck the detector plate. To demonstrate that each image represented precisely one moment during the laser cycle--rather than , the pattern shifted upward; if the ionizing pulse came a half-cycle later, the bullseye shifted downward. This pattern shifting wouldn't have been possible with longer-lasting ionization periods.a range of ionization times--the team shifted the timing of the attosecond pulses with respect to the laser field cycle. If electrons were ionized at a time when the laser field gave them an extra boost upward"
The Boston Dangler
Lifer
- Mar 10, 2005
- 14,647
- 2
- 0
so the video isn't 1 contiuous shot, it's dozens of separate events at different phases of the laser wavelength. the laser ionizes the atom, and the free electron is steered into the detector. the detector spits out a bullseye picture of ??? and measuring the quantum state changes it.
not an electron. not even a video
not an electron. not even a video
TRENDING THREADS
-
Discussion Intel current and future Lakes & Rapids thread- Started by TheF34RChannel
- Replies: 23K
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 9K
-
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes Discussion Threads
- Started by Tigerick
- Replies: 7K
-
Facebook
Twitter