Longwave IR focal-plane binary optics
| Autor: | Z. Sikorski, H. Polakowski |
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| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Proceedings of the 2000 International Conference on Quantitative InfraRed Thermography. |
| DOI: | 10.21611/qirt.2000.062 |
| Popis: | In this paper we discuss a choice between the diffractive and refractive binary micro-lenses for the longwave IR FPA. To investigate diffraction on the micro-lenses we have used a numerical code based-on the rigorous electromagnetic theory, because neither geometrical optics nor thin element approach of scalar diffraction theory can correctly describe waveguide, shadowing and interference effects inside the micro-lens surface relief. These effects strongly influence the micro-lens diffraction efficiency when the width of the surface-relief features is close to the wavelength. |
| Databáze: | OpenAIRE |
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