Discover and read the best of Twitter Threads about #diffraction

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After yesterday's Nobel celebration we are back on track . I believe I promised something on #data #analysis
A thread 🧵on how we extract the data from our #robot beamtime @desynews @p021_desy and how we figure out the #arrangement of #atoms in our samples /@RPittkowski 1/6
We get these beautiful 2D images from where the #scattered #X-ray beam hits the detector plate. What you see below is the scattering recorded for LaB6 - not surprising that we use it as a standard for calibration when you look at the beautiful #rings 2/6
By radial integration we get a 1D diffraction pattern, which shows distinct Bragg peaks for each ring on the 2D image. I made a very boring #GIF where you can see how the #rings relate to #peaks in the pattern 3/6
Read 6 tweets
So I talked about the how...but why did I choose to go into science in the first place? Relocating to a new country isn't a small decision and not an easy one.
Since I was a kid, I was always captivated by crystals. Their shape, the colour and multiple varieties. I had a small collection going at one period of time. But it was only a passing fancy, one that I didn't think about again until the final year of university.
As I mentioned, I took a solid state chemistry course which introduced me not just the beautiful macroscopic properties of crystals, but the hidden atomic patterns which lay within and how #structure determines materials #properties.
Read 10 tweets
Mot(s) du jour que je ne connaissais pas, en mode #Thread
La #nanophotonique, ou nano-optique, est l'étude de la lumière et de ses interactions avec la matière à des échelles nanométriques. Image
Une question essentielle de la nanophotonique est de dépasser (ou contourner) les limites imposées par le phénomène de diffraction en optique. La #diffraction est le comportement des ondes lorsqu’elles rencontrent un obstacle ou une ouverture ; Image
On parle de nanophotonique lorsque les phénomènes mis en jeu interviennent sur des distances inférieures à la longueur d'onde (dans la gamme visible du spectre électromagnétique, la longueur d'onde se situe entre 400 et 700nm). Image
Read 5 tweets

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