The world's first successful photography of "light" particles and wave properties at the same time
Light combines the properties of "particle" and "wave", but until now both of these properties, which could not be observed at the same time,Swiss Federal Institute of Technology Lausanne (EPFL)The research team of the world succeeded in photographing by electron microscope for the first time in the world.
The first ever photograph of light as both a particle and wave
Simultaneous observation of the quantization and the interference pattern of a plasmonic near-field: Nature Communications: Nature Publishing Group
The first ever photograph of light as a particle and a wave | EurekAlert! Science News
That amazing picture is kore.
© 2015 EPFL
However, although it is hard to understand what is really great, why is it so amazing to shoot this and how it was filmed by EPFL in an animated movie, this If you look at the circumstances can easily grasp the circumstances.
Two-in-one photography: Light as wave and particle! - YouTube
Speaking of Einstein, he is a 20th century physicist known for "special relativity theory" and "general relativity theory". Until the end of the nineteenth century, the idea that "light is a wave" was the mainstream, but then where Einstein thought "light is a particle of energy (light quantum)" where the explanation such as "photoelectric effect" etc. could not be explained , And restored the particle theory that was advocated in the 17th century.
Einstein received the Nobel Prize in Physics for "Discovering the law of photoelectric effect" etc. according to this "photon hypothesis".
After that, when the times went down, the light was "waves" ... ...
It is now thought that it possesses both properties of 'particle'.
However, the problem is that nobody has observed the fact that light expresses the properties of both waves and particles.
Therefore, the method which EPFL researchers thought was the core. First of all, prepare a very thin metallic nanowire with a diameter of 0.00008 mm and irradiate the laser there.
The photons in the nanowire are given energy from the laser and vibrate, going back and forth on the wire. A new wave generated by moving the photon in the opposite direction is an optical standing wave used in the experiment.
Usually, when photographing, the sensor of the camera gathers light to connect the image.
Then, what do you do when you want to shoot the light itself ...?
I will declare the electrons to the nanowire continuously as soon as I show that there is light.
Photon during exercise
When an electron strikes it, photons either raise or lower the speed.
Changes appear as energy packets, quantum.
If you check it with a microscope ......
What was filmed in this way is the photograph that simultaneously captures the nature of "particle" and "wave" of light, which is the first in the world, which is posted on the left side.
The mechanism actually taken is like this
The following is the real thing of a microscope that succeeded in shooting