STED Simulation and Analysis by the Enhanced Geometrical Ray Tracing Method
نویسندگان
چکیده
منابع مشابه
Enhanced Ray Tracing
Rendering the interaction between light and microscopic particles in a scene, such as smoke or floating dust, has traditionally been a computationally intensive and difficult process. To produce an accurate rendering requires simulation, or reasonably accurate approximation, of how the light interacts with these particles on a fine level of detail. Specifically, when light enters an area of som...
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Ray Tracing (RT) is a geometrical optics approach which determines most propagation paths that can propagate from transmitter (Tx) to receiver (Rx). It has been proved to be an accurate and versatile propagation prediction tool for both indoor and outdoor scenarios. As other deterministic channel models, RT requires exact knowledge of the geometrical and electromagnetic description of the relev...
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Although the optical microscope has been the main tool for observations of etched tracks in solid state nuclear track detectors for many years, there has been relatively little investigation about the optical characteristics of these tracks. This chapter describes the application of the ray tracing method to light propagation through these etched tracks. The method is shown to be able to reprod...
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あらまし レイトレーシング法は送信点から受信点に到達するレイを幾何学的にトレースするだけで電波伝搬 をシミュレートでき,移動通信のシステム設計やエリア設計に必要な伝搬諸特性を一元的に推定できる魅力的な 方法である.しかし,高精度な結果を得るためには形状と材質(電気的特性)に関する詳細な構造物データを必 要とする.また,広範囲にわたる多くの構造物を対象に相互作用回数(反射,回折,透過)の多いレイをトレー スしなければならず,演算に多くの時間を要する.本論文では,筆者らが開発した市街地マクロセル対応のレイ トレーシングシステムの概要を述べる.本システムには演算処理の高速化を実現するために筆者らが提案してい る様々な高速化技術が適用されている.また,本論文では市街地の実測データと比較することにより本システム の演算時間と推定精度を評価し,本システムが実用に資するものであることを明らかにする...
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Here, we investigate the possible optical anisotropy of vacuum due to gravitational field. In doing this, we provide sufficient evidence from direct coordinate integration of the null-geodesic equations obtained from the Lagrangian method, as well as ray-tracing equations obtained from the Plebanski’s equivalent medium theory. All calculations are done for the Schwarzschild geometry, which resu...
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ژورنال
عنوان ژورنال: Microscopy Today
سال: 2021
ISSN: 1551-9295,2150-3583
DOI: 10.1017/s1551929521000687