With expanding numbers of laser applications, there is greater potential for laser radiation exposures. Proper surveillance and evaluation of laser incidents can lead to better injury prevention and more efficient medical treatment. Current laser incident databases do not provide sufficient information for surveillance and analysis of laser trends. A laser incident reporting form (LIRF) was created for U.S. Air Force applications by using the Delphi technique. To create the LIRF, four expert panels were formed by 40 health and safety professionals experienced with laser systems and medical evaluation of laser incidents. After three rounds of surveys, the final LIRF contained 100 data collection fields identifying the most valuable items for injury trend analysis. Although the LIRF was initially developed to collect USAF laser incident information, it could potentially act as the cornerstone for a new system serving the entire military system.
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http://dx.doi.org/10.7205/milmed.171.9.894 | DOI Listing |
J Clin Med
January 2025
Division of Ophthalmology, Department of Special Surgery, Faculty of Medicine, Jordan University of Science & Technology, Irbid 22110, Jordan.
: Rhegmatogenous retinal detachment (RRD) is a potentially blinding retinal disorder. RRD in the first eye is a well-recognized risk factor for bilateral RRD since risk factors that predispose to RRD affect both eyes. In this study, we assess the presenting factors that predispose individuals to bilateral RRD and evaluate the role of prophylactic retinopexy in preventing fellow-eye RRD.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Beijing Institute of Space Mechanics and Electricity, Beijing 100081, China.
Displacement measurement is a crucial application, with laser-based methods offering high precision and being well established in commercial settings. However, these methods often come with the drawbacks of significant size and exorbitant costs. We introduce a novel displacement measurement method that utilizes the missing-order Talbot effect.
View Article and Find Full Text PDFSensors (Basel)
December 2024
Research Center of Applied Electromagnetics, Nanjing University of Information Science and Technology, Nanjing 210044, China.
We present a novel photoreconfigurable metasurface designed for independent and efficient control of electromagnetic waves with identical incident polarization and frequency across the entire spatial domain. The proposed metasurface features a three-layer architecture: a top layer incorporating a gold circular split ring resonator (CSRR) filled with perovskite material and dual -shaped perovskite resonators; a middle layer of polyimide dielectric; and a bottom layer comprising a perovskite substrate with an oppositely oriented circular split ring resonator filled with gold. By modulating the intensity of a laser beam, we achieve autonomous manipulation of incident circularly polarized terahertz waves in both transmission and reflection modes.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan.
Coherent Raman scattering spectroscopies have been established as a powerful tool for investigating molecular systems with high chemical specificity. The existing coherent Raman scattering techniques detect only Raman active modes, which are a part of the whole molecular vibrations. Here, we report the first observation of coherent anti-Stokes hyper-Raman scattering (CAHRS) spectroscopy, which allows measuring hyper-Raman active vibrations at high speed.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China.
This paper investigates the thermal effects in fused-tapered passive optical fibers under near-infrared absorption. The thermal effect is primarily caused by impurities, such as OH-, which absorb incident light and generate heat. Using the finite element method, the volume changes during fiber tapering were simulated, influencing power density and thermal distribution.
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