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Theoretical and experimental investigation of infrared properties of tapered silver/silver halide-coated hollow waveguides

机译：锥形银/卤化银涂层空心波导红外特性的理论和实验研究

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Silver/silver halide-coated hollow-glass waveguides (HGWs) are capable of low-loss, broadband transmission at infrared wavelengths with the advantage of optical response tunability through alteration of a number of key design parameters. Generally, the design of circular HGWs has primarily involved optimization of the waveguide bore size and deposited film structure in order to obtain the desired optical response, with the waveguide bore size being held constant as a function of length. In this study, the effects of HGW structures consisting of linearly tapered inner diameters on the optical response at infrared wavelengths are theoretically and experimentally investigated. Theoretical analysis involving numerical ray optics methods accounting for the dynamic nature of bore size, and consequently light propagation, along the waveguide length is presented and compared to experimental results in order to gain a deeper understanding of these atypical HGW structures.
机译：涂有银/卤化银的中空玻璃波导（HGW）能够在红外波长下进行低损耗宽带传输，并具有通过更改许多关键设计参数而带来的光学响应可调性的优势。通常，圆形HGW的设计主要涉及优化波导孔尺寸和沉积膜结构，以便获得所需的光学响应，其中波导孔尺寸根据长度保持恒定。在这项研究中，理论上和实验上研究了由线性渐缩内径组成的HGW结构对红外波长下光学响应的​​影响。提出了涉及数值射线光学方法的理论分析，该方法考虑了孔径的动态特性，并因此解释了沿波导长度的光传播，并将其与实验结果进行了比较，以便更深入地了解这些非典型HGW结构。

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