Scientists / Open questions

戴维·史密斯

David R. Smith

超材料、电磁学、变换光学

9 个问题

  1. Validity limits and spatial-dispersion-aware generalization of local effective-parameter retrieval for resonant metamaterials

  2. Realizing and quantitatively characterizing the ultimate single-emitter performance of ultrafast plasmonic nanocube-on-mirror spontaneous emission sources: deterministic optimal placement, direct sub-10 ps lifetime measurement, electrical injection, and telecom-wavelength operation

  3. Rigorous necessary and sufficient conditions for reflectionless finite embedded coordinate transformations, their singular boundary terms, and residual scattering

  4. Regularization and physical realization of the three-dimensional spherical acoustic cloaking shell

  5. Realization and loss-limited resolution of compensated bilayers of indefinite (hyperbolic) electromagnetic media in realistic dispersive, lossy, polarization-independent metamaterials

  6. Experimental verification of the reversal of radiation pressure (radiation tension) on left-handed metamaterials

  7. Robust, frequency-predictable epsilon-near-zero supercoupling channels: volumetric ENZ media, quantitative fabrication tolerances, and wire-medium realizations from microwaves to terahertz

  8. Experimental realization and near-unity optimization of ultra-broadband ultrathin metamaterial absorbers across the long-to-very-long infrared band (8-30 µm)

  9. Scalable, spectrally versatile, and energy-harvesting film-coupled colloidal nanocube metasurface perfect absorbers: conformal uniformity, infrared extension, hot-electron collection, and long-term stability

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