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Cake day: June 9th, 2023

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  • For board games, I’m a big fan of Wavelength, Decrypto, and No Thanks!, along with Codenames.

    Wavelength is a game where you try to get your teammates to guess a position on a spectrum, like “cold” to “hot” by giving them a clue, like “ice” or “the surface of the sun”. Decrypto is a lot like Codenames, but you’re also trying to disguise your clues from the other team. No Thanks! is a light, quick game which centers around pushing your luck as much as possible.



  • Our beamline is still very new (my main focus was actually on building/commissioning it), so for now, we’ve just been looking at relatively simple processes like the Debye-Waller effect, where the diffraction spots become weaker as the temperature rises.

    The ultrafast capability comes from the electron beam having a sub-picosecond duration, which essentially corresponds to the shutter speed of a camera. By varying the delay between a pump laser and the electron probe and observing the change in intensity of the diffraction spots, we can figure out how the heat deposited by the laser diffuses through the sample, and make a “molecular movie” of this process. It’s in the same spirit as other pump-probe experiments, like what @Salamander does.