مشروع البحث: Infrared Electric Field Enhancement via a Hyperbolic-Metalens- Coupled Nanoantenna
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المساهمين
الممولين
رقم التعريف
797
الباحث
محمد جبريل
الوصف
This dissertation also demonstrates a novel metalens in the mid-infrared range from 6.4 μm to 10 μm, consisting of a doped indium arsenide (InAs) which works as a plasmonic waveguide coupler (PWC) on a slab of type I hyperbolic metamaterial (HMM) on the top of a substrate of undoped InAs with an Au nanoantenna at the other end. The metalens focuses both propagating and evanescent waves into a focal point at which the field confinement and enhancement are improved using the plasmonic nanoantenna. Finally, ultrahigh mid-infrared electric field enhancement with a high absorption cross-section and a focusing resolution are obtained via gap nanoantenna plasmonic resonance coupled with the novel hyperbolic metalens. By combining the focal spot of the metalens with the excited plasmons of a gap nanoantenna, the resulting structure exhibits an ultrahigh field-intensity enhancement with a high absorption cross-section and a focusing resolution.
الكلمات الدالة
Metalens- Coupled Nanoantenna