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Wide field of view and light weight optics are critical for advanced eyewear, with applications in augmented/virtual reality and night vision. Conventional refractive lenses are often stacked to correct aberrations at a wide field of view, leading to limited performance and increased size and weight. In particular, simultaneously achieving a wide field of view and large aperture for light collection is desirable but challenging to realize in a compact form-factor. Here, we demonstrate a wide field of view (greater than 60) meta-optic doublet eyepiece with an entrance aperture of 2.1 cm. At the design wavelength of 633 nm, the meta-optic doublet achieves comparable performance to a refractive lens-based eyepiece system. This meta-doublet eyepiece illustrates the potential for meta-optics to play an important role in the development of high-quality monochrome near-eye displays and night vision systems.
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http://dx.doi.org/10.1038/s41377-024-01674-0 | DOI Listing |
JMIR Serious Games
September 2025
Global Health Institute, American University of Beirut, PO Box 11-0236, Riad El Solh, Beirut, 1107 2020, Lebanon, 961 3047578.
Background: High maternal morbidity and mortality rates globally, especially in low-income and lower-middle-income countries, highlight the critical role of skilled health care providers (HCPs) in preventing pregnancy-related complications among disadvantaged populations. Lebanon, hosting over 1.5 million refugees, is no exception.
View Article and Find Full Text PDFCrit Care Sci
September 2025
Universitätsklinikum Carl Gustav Carus - Dresden, Sachsen, Germany.
The PROtective VEntilation (PROVE) Network is a globally-recognized collaborative research group dedicated to advancing research, education, and collaboration in the field of mechanical ventilation. Established to address critical questions in intraoperative and intensive care ventilation, the network focuses on improving outcomes for patients undergoing mechanical ventilation in diverse settings, including operating rooms, intensive care units, burn units, and resource-limited environments in low- and middle-income countries. The PROVE Network is committed to generating high-quality evidence through a comprehensive portfolio of investigations, including randomized clinical trials, observational research, and meta-analyses.
View Article and Find Full Text PDFPhys Rev Lett
August 2025
The Hong Kong University of Science and Technology, Department of Physics and Institute for Advanced Study, Clear Water Bay, Hong Kong SAR, China.
Photonic crystals are artificial materials characterized by a photonic band structure that governs the propagation of light waves. The photonic gap was originally introduced to inhibit spontaneous emission and facilitate photon localization. In this essay, I will highlight how, despite the established understanding of photonic crystals, they remain highly relevant today.
View Article and Find Full Text PDFCharged hadron elliptic anisotropies (v_{2}) are presented over a wide transverse momentum (p_{T}) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively.
View Article and Find Full Text PDFGen Thorac Cardiovasc Surg
September 2025
Department of General Thoracic Surgery, Seirei Hamamatsu General Hospital, 2-12-12, Hamamatsu, Shizuoka, 430-8558, Japan.
Thoracoscopic surgery for stage III acute empyema is often limited by poor visualization and anatomical complexity. We developed a standardized, minimally invasive approach using a variable-view rigid endoscope and fixed port placement, regardless of disease extent or patient physique. The variable-view endoscope enabled a wide, adjustable field of view without moving the camera shaft, allowing safe access even in the confined thoracic space.
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