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Credit: Kazan Federal University
Problems for eigenmodes of a two-layered dielectric microcavity have become widespread thanks to the research of A.I. Nosich, E.I. Smotrova, S.V. Boriskina and others since the beginning of the 21st century. The KFU team first tackled this topic in 2014; undergraduates started working under the guidance of Evgeny Karchevsky, Professor of the Department of Applied Mathematics of the Institute of Computational Mathematics and Information Technology.
In this paper, the researchers discuss a model of a 2D active microcavity with a piercing hole and the possibility of a compromise between high directionality of radiation and low threshold gain. The analysis performed is based on the lasing eigenvalue problem (LEP) formalism. This LEP is a boundary value problem for the system of Maxwell equations with boundary and radiation conditions, adapted to study the threshold modes of open resonators with active regions. In LEP, each eigenvalue is a pair of two re
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The European Union is advancing artificial intelligence regulations that could impact medical device and diagnostic companies around the world. Through the policy, the EU plans to impose additional requirements on the use of AI in medtech and issue fines for noncompliance that could total billions of dollars.
In a document setting out its plans, the European Commission states high-risk AI systems should only be placed on the EU market if they comply with certain mandatory requirements that ensure they do not pose unacceptable risks to important public interests. Medical devices and in vitro diagnostics are on a long list of products that could be classed as high-risk.