Photonics - 3 News by Max-Planck-Gesellschaft

Photonics - 3 News by Max-Planck-Gesellschaft

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“Optical fingerprints” on an electron beam

Researchers observe non-linear optical processes in the electron microscope

17-Jan-2024 - The precise control of electron beams in so-called transmission electron microscopes (TEM) makes it possible to analyze materials or molecules at the atomic level. Combined with short light pulses, these devices can also be used to analyze dynamic processes. Researchers from Göttingen and ...

photonics electron microscopy electrons
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Electric current at record speed

Scientists have generated the fastest electric current that has ever been measured inside a solid material

27-Oct-2016 - In the field of electronics, the principle 'the smaller, the better' applies. Some building blocks of computers or mobile phones, however, have become nearly as small today as only a few atoms. It is therefore hardly possible to reduce them any further. Another factor for the performance of ...

photonics conductivity electricity

"On-the-fly" spectroscopy with a diode laser and a frequency comb

MPQ scientists achieve high precision optical broadband spectroscopy by applying frequency comb technique to tunable diode lasers

04-Sep-2009 - The research field of optical spectroscopy has already attracted attention of generations of scientists, starting with Fraunhofer's discovery of dark lines in the sun spectrum in 1814 followed by the work of Kirchhoff and Bunsen in 1859 explaining these lines as absorption of light in atoms and ...

photonics nanophotonics absorption

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