Photo-induced thermal radiation of optical interference coatings submitted to a spatio-temporal illumination
Résumé
We present an electromagnetic model for photo-induced thermal radiation in multi-layer interference filters subjected to arbitrary pulsed illumination with limited beam size. Numerical calculation is used to analyze various structures affecting thermal radiation, such as multi-dielectric mirrors in the mid-infrared range. Other zero-admittance structures are shown to strongly confine and enhance the thermal radiation with an emissivity close to unity at pre-defined frequencies (wavelength and angles). Calculation tools are chosen that encourage the use of techniques for synthesizing thin-film multilayers able to control thermal radiation.
Domaines
Optique [physics.optics]
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Rouquette et al. - 2023 - Photo-induced thermal radiation of optical interfe.pdf (3.24 Mo)
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