Inspiring, Photonic Crystals

Entertaining double slit experiment

“My personality is who I am, but my attitude depends on how you treat me”

Recently you might have heard a lot about light, wave, matter, particle and more scary stuff like quantum mechanics, thanks to Nobel Prize for Boson guys. You might thought it’s too crazy stuff, only few people can understand. But we can see this crazy stuff in front of our eyes very easily. I will share with you today one of the most important things in quantum mechanics, that is wave nature of light. Light is a wave as well a particle at the same time. But depending on our experiment we find it as either a particle or a wave, but not both states at a time like the above quote. I want to share with you a double slit experiment in which we find light behaving as a wave. Often times you see only a boring graph or simulated video of double slit experiment, but how in real life we can see the double slit experiment.  I do not want to waste your time, so watch this entertaining video. If you don’t have time, just watch it for less than a minute part between 4.20 – 5.00 minutes in you tube.

(This guy is crazy he has amazing videos on science, they really blow your mind)

Why did this I posted, because something interesting will follow this. That later post will explain the beauty of butterflies.

Photonic Crystals

Photonic Crystals

First let us start with a  simple question.  What are the crystals?

Crystals are the ordered patterns of atoms/molecules/ions in three dimensions. Common examples are diamonds, snow flakes and table salt. These crystal are used to control the flow of electrons. So all the electronics such as our phones, tablets, PCs, TVs and the whole world of electronics is centred around controlling the flow of electrons within these crystals (Silicon chips).


Then, what are the Photonic Crystals ?

Photonic crystals are the ordered patterns of the material building blocks. Like the above explained normal crystals, which control the flow of electrons, these Photonic crystals control the flow of photons through them, thus the name Photonic Crystal.

Why we bother about them ?

Because controlling the electrons  already gave us so many technologies . However speed of electrons is very slow compared to the speed of photons.  Therefore, by using photonic crystals we can make devices that can work 1000 times faster than the electronic devices.

Do we have these photonic crystals in nature?

Why not, you might have seen beautiful butter fly wings, colorful peacock feathers, precious opals, glossy flowers and sparkling beetels. All these have photonic crystals that are carefully designed by nature for hundred of years.

Why do nature created these photonic crystals?

Scientists now finding the answers for these questions. One obvious reason might be to attract their opposite sex partners for mating. Another possibility might be for thermodynamic stability of these creatures.

Since how long we human beings come to know about these photonic crystals?

One dimensional photonic crystals are researched since very long, at least from 1779s.