Estimating the Absorption and Waveguiding in Porous Slabs from Multi-modal Measurements

IF 1.9 4区 物理与天体物理 Q3 OPTICS
Luat Vuong
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引用次数: 0

Abstract

Knowledge of the radiation transfer through porous materials is important for a variety of engineering systems. In our experiments with layers of packed microparticles on metal, the fraction of light that is directed from normal incidence into waveguided modes is non-negligible; we seek to estimate the absorption in this porous layer with a few, simple experiments. We employ a ray transfer-function approach and provide analytic relations for the reflected, waveguided, and transmitted light. With these relations and multi-modal experimental data taken at different laser wavelengths, the interplay between reflection, waveguiding, and transmission can be estimated. We find that waveguiding is significant when the single-pass absorption of a porous slab is more than a few percent.
通过多模态测量估算多孔板的吸收和波导情况
了解多孔材料的辐射传输对各种工程系统都很重要。在我们对金属上的填料微粒层进行的实验中,从正常入射到波导模式的光线部分是不可忽略的;我们试图通过一些简单的实验来估算该多孔层的吸收情况。我们采用了射线传递函数方法,并提供了反射光、波导光和透射光的解析关系。利用这些关系和不同激光波长下的多模式实验数据,可以估算出反射、波导和透射之间的相互作用。我们发现,当多孔板的单程吸收率超过百分之几时,波导作用就非常明显。
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来源期刊
CiteScore
2.40
自引率
0.00%
发文量
12
审稿时长
5 weeks
期刊介绍: Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.
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