The powerful light field manipulation capability of metasurfaces offers a novel development perspective for the quantum precision measurement. By applying the phase-gradient metasurface (PGM) to atomic magnetometers (AMs), we have proposed and experimentally demonstrated a new type of compact single-beam elliptically polarized atomic magnetometers (EPAMs). Employing the fabricated chiral beam splitter PGM with high cross-polarization transmittance, a new atomic spin chirality detection method was devised, enabling the ultra-high sensitivity for extremely weak magnetic field measurement and achieving a high sensitivity of 2.67 pT/Hz^1/2 under an external magnetic field of approximately 10000 nT. The new AMs combine the pumping and probing polarized light, achieving a compact design. The fabricated PGM has a size of only 3 mm × 3 mm × 0.7 mm, which is beneficial for the miniaturization and integration of AMs. This work effectively expands the application of metasurfaces in the field of quantum precision measurement, and also provides a new viewpoint for the design and development of high-sensitivity and miniaturized AMs.

Multi-energy X-ray imaging technology shows significant advantages in complex scenes， such as simultaneous imaging of bone and muscle defects in organisms. However, this technology has strict requirements on material selection and device design, which is a key bottleneck restricting its further development. Here, we establish the probability model of energy distribution of different energy X-rays in each layer of scintillator films, guiding the rational design of the type, thickness and stacking sequence of scintillators. Moreover, we propose a universal vitamin assisted in-situ growth method on perovskite scintillators, which provide technical support for the controllable preparation of polymer-ceramic composite scintillator films with high uniformity and radiation stability. More importantly, we have successfully realized multi-energy X-ray imaging by stacking four polymer-ceramic film, identifying materials with different densities. This research is expected to provide guidance for the rational selection of polymer host and multi-energy X-ray imaging applications.

SAN ANTONIO — September 15, 2025 — Southwest Research Institute (SwRI) installed a private 5G research, development, test and evaluation network to boost security, eliminate dependency on outside mobile network providers and expand network access for advanced 5G projects. The secure, high-velocity 5G network allows rapid deployment of communication resources and wireless connectivity on the SwRI campus or off-site in the field, providing wide coverage for research and development.

As part of its ongoing dedication to social responsibility, CHEST installed a solar panel system at its Glenview, Illinois headquarters.