THESIS
2015
xv, 63 pages : illustrations (chiefly color) ; 30 cm
Abstract
Metamaterials have been widely studied in recent decades for their novel properties when interacting with electromagnetic waves. One particular field that draws much interest is the plasmonic analog of electromagnetically-induced-transparency, or plasmon-induced-transparency. In this thesis, a multi-layer metamaterial design is proposed to display PIT effect under circularly polarized light. This design loosens the criteria on PIT metamaterial design by allowing both the bright mode and the dark mode to be excited by incident light, which can be understood quantitatively with a classical two-oscillator model. Fabrication of the multi-layer metamaterial is successful for both visible and near-infrared spectrum range. However, the PIT effect is not able to be realized due to several struc...[
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Metamaterials have been widely studied in recent decades for their novel properties when interacting with electromagnetic waves. One particular field that draws much interest is the plasmonic analog of electromagnetically-induced-transparency, or plasmon-induced-transparency. In this thesis, a multi-layer metamaterial design is proposed to display PIT effect under circularly polarized light. This design loosens the criteria on PIT metamaterial design by allowing both the bright mode and the dark mode to be excited by incident light, which can be understood quantitatively with a classical two-oscillator model. Fabrication of the multi-layer metamaterial is successful for both visible and near-infrared spectrum range. However, the PIT effect is not able to be realized due to several structural and experimental limitations. Two other designs of PIT metamaterial with different advantages are also briefly discussed. With further improvement in structure and experimental techniques, the PIT metamaterials that are designed in this work may be used as functional units in optical devices with application in slow light, sensing, controlled transparency and chirality.
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