Dual nature of light filmed for the first time

Light is the only thing which makes everything visible and is the first thing which was formed after the big bang and knowing it better would ultimately lead to a science full future. Einstein was one of the first person to tell the world that light behaves in both nature that is wave and particle, since then a lot of studies have been done in the nature of light, even a branch of science quantum mechanics get its origination from this idea of light and it tells us that light can behave as both wave and particles at the same time but were are not able get the proof that this is possible simultaneously.

There were many occasions where light was photographed behaving like particle or like waves but for the first time a team at the Swiss Federal Institute of Technology in Lausanne (EPFL) has demonstrated an experiment which has captured the images of light behaving like waves and particles simultaneously.
The experiment is set up like this: A pulse of laser light is fired at a tiny metallic nanowire. The laser adds energy to the charged particles in the nanowire, causing them to vibrate. Light travels along this tiny wire in two possible directions, like cars on a highway. When waves traveling in opposite directions meet each other they form a new wave that looks like it is standing in place. Here, this standing wave becomes the source of light for the experiment, radiating around the nanowire.

This is where the experiment’s trick comes in: The scientists shot a stream of electrons close to the nanowire, using them to image the standing wave of light. As the electrons interacted with the confined light on the nanowire, they either sped up or slowed down. Using the ultrafast microscope to image the position where this change in speed occurred, which acts as a fingerprint of the wave-nature of light.

Experiment set up 

While this phenomenon shows the wave-like nature of light, it simultaneously demonstrates its particle aspect as well. As the electrons pass close to the standing wave of light, they “hit” the light’s particles, the photons. As mentioned above, this affects their speed, making them move faster or slower. This change in speed appears as an exchange of energy “packets” (quanta) between electrons and photons. The very occurrence of these energy packets shows that the light on the nanowire behaves as a particle.