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- University of OklahomaUS328 papers
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11 papers · 1 filter
Tailoring Terahertz Propagation by Phase and Amplitude Control in Metasurfaces
Jingjing Zheng, Xueqian Zhang, Lixiang Liu +5
Using metasurfaces to control the wave propagation at will has been very successful over the broad electromagnetic spectrum in recent years. By encoding specially designed abrupt c…
Ultra-high terahertz index in deep subwavelength coupled bi-layer free-standing flexible metamaterials
Leena Singh, Ranjan Singh, Weili Zhang
We report extensive enhancement in the refractive index of artificially designed metamaterials by exploiting the deep subwavelength coupling in a free-standing, thin-film metal-die…
Tailoring Mie Resonances in Cupric Oxide Particles for Use as Nanoantennas
Sundaram Bhardwaj Ramakrishnan, Ravi Teja Addanki Tirumala, Farshid Mohammadparast +2
The field of nano-optics has grown with plasmonic metals. Metals such as silver, gold, and copper nanoparticles, can concentrate electromagnetic (EM) fields at the nanoscale, due t…
Unraveling beam self-healing
Andrea Aiello, Girish S. Agarwal, Martin Paúr +6
We show that, contrary to popular belief, non only diffraction-free beams may reconstruct themselves after hitting an opaque obstacle but also, for example, Gaussian beams. We unra…
Interference control of perfect photon absorption in cavity quantum electrodynamics
Liyong Wang, Ke Di, Yifu Zhu +1
We propose and analyze a scheme for controlling coherent photon transmission and reflection in a cavity-quantum-electrodynamics (CQED) system consisting of an optical resonator cou…
Tailoring the slow light behavior in terahertz metasurfaces
Manukumara Manjappa, Sher-Yi Chiam, Longqing Cong +3
We experimentally study the effect of near field coupling on the transmission of light in terahertz metasurfaces, possessing slightly distinctive SRR resonances. Our results show t…