GoKawiilUTEM illustration (a) and image (b) illustrating the microscope column, electron spectrometer and detectors, optical setup, and the integration of a modified Hard X-ray Aperture (HXA) at a post-condenser lens stage (PELM). The external knob of the HXA (a and b, left side) has two rigid positioning points with 5 mm lateral travel around them for positioning the reference interaction point with respect to the electron beam path. An electron-transparent thin film sits at the place of the x-ray aperture, and light enters from the optical access port on the opposite side of the column at a 20-degree angle above the horizon (dashed red line in b). Double illumination scheme (a and b, right side) implemented on the vertical board next to the UTEM. The IR laser beam is separated into two portions using a 50:50 beam splitter. One portion is guided towards the PELM (dashed red line in b), whereas the other portion is guided towards the sample (solid red line in b). (c) Image (left) and CAD model (right) of the modified HXA aperture connected to the platelet hosting the electron-transparent light-opaque metallic thin films for electron-light interaction. The platelet is made of Aluminum alloy, whereas the clamp is made of 0.15-mm-thick Beryllium Copper. One can observe two Si-window TEM grids (Norcada Inc.), which are coated with a 25-nm-thick Aluminum film deposited via thermal evaporation on a 10-nm-thick Si 3 N 4 membrane. In each grid, nine slots are present to maximize the available points of interaction in case of local damage to one of the membranes. The platelet has also been cut at a specific angle, allowing it to host a small metallic mirror able to reflect the light down the column towards the sample position (not used in the current work). The platelet, HXA, and their integration were designed and performed in close collaboration with IDES, part of JEOL Ltd. (d) By using the pump-probe delay stage in combination with the PELM delay stage, the setup allows a very long acquisition time in high spatiotemporal resolution with a large field of view. The result is 285 frames of 1050 × 1050 pix images, a total size of ~1.5GB of data to analyze with our specialized algorithmic process. (e) The very long acquisition time also results in sample and beam instability, which needs to be taken into account.
Superluminal correlations in ensembles of optical phase singularities
Why This Matters
This research demonstrates the potential for superluminal correlations in optical phase singularities, which could revolutionize quantum communication and information processing by enabling faster-than-light-like interactions within optical ensembles. The innovative experimental setup combining advanced electron microscopy and optical manipulation paves the way for new explorations into quantum phenomena and their applications in the tech industry.
Key Takeaways
- The study explores superluminal correlations in optical phase singularities.
- Advanced microscopy and optical techniques are used to observe quantum effects.
- Findings could impact quantum communication and information technologies.
Explore topics:
superluminal correlations
optical phase singularities
utem
x-ray aperture
electron-light interaction
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