光学
材料科学
栅栏
波导管
分光计
平面的
衍射光栅
衍射
光电二极管
全内反射
光电子学
基质(水族馆)
波长
导模共振
反射(计算机编程)
折射率
功率分配器和定向耦合器
制作
物理
地质学
计算机图形学(图像)
海洋学
计算机科学
作者
Don S. Goldman,Paul R. White,Norman C. Anheier
出处
期刊:Applied optics
[The Optical Society]
日期:1990-11-01
卷期号:29 (31): 4583-4583
被引量:53
摘要
Polymeric and metal oxide planar waveguides were used to demonstrate the potential of a miniature spectrometer. Multiwavelength light was transmitted through the substrate and coupled into the waveguide through a diffraction grating located at the substrate/waveguide interface. A second diffraction grating spatially dispersed the light propagated through the waveguide into component wavelengths for rapid analysis with a photodiode array detector. These results suggest that planar waveguides can be used to perform attenuated total internal reflection measurements in the visible and near-IR regions for chemical analysis of weak vibrational overtones and combination modes with effective path lengths of several millimeters.
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