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Ultrafast transmission electron microscopy is a promising laser-pump electron-probe technique, which allows for studying ultrafast dynamics with both high spatial and temporal resolution [1]. Besides, the high spatial and temporal coherence of the pulsed electron beam enables a coherent manipulation of the free-electron quantum state [2] by inelastic scattering in optical near-fields [3-5]. Upon traversal...
Due to the compact and robust design, modem fiber frequency combs are a very promising tool for future space-bome instruments such as optical clocks, LIDAR systems and intra-satellite links.
One of the biggest challenges in modem Astronomy is the direct detection of extrasolar planets using ground based telescopes. While the small angular separation of the star-planet system is an unchangeable limitation, the contrast ratio can dramatically be improved by shifting the observing wavelength to the mid-infrared. In the astronomical L'-band (3.5–4.1 μm), atmospherical disturbances are relatively...
One of the main challenges of astronomy these days is to directly image exoplanets and protoplanetary disks using diffraction limited optics. Due to the proximity of the planet to the host star and its small size, the discovery of new planets requires high angular resolution and high contrast imaging. Achieving these two requirements is challenging with existing astronomical instrument. However, the...
MIR range Quantum Cascade Lasers (QCLs) find various sensing applications in security, health, gas sensing and spectral gas analysis. After some additional design and fabrication efforts, single mode or narrow band QCLs (DFB or grating-stabilized on external cavity) provide a direct access to spectral measurements of molecular fingerprints (ro-vibrational bands). However the simplest Fabry-Perot (FP)...
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