Shang Jie Yu, John Andris Roberts, et al.
CLEO 2020
Mueller matrix ellipsometry over the wide spectral range from the mid-IR to UV is applied to characterize the dielectric function tensor for films of densely packed single-walled carbon nanotubes aligned in the surface plane. These films optically act as metamaterials with an in-plane anisotropic, bulk effective medium response. A parameterized oscillator model is developed to describe electronic interband transitions, π - π ∗ plasmon resonances, and free-carrier absorption. Wide ranges of hyperbolic dispersion are observed and exceptional tuneability of the hyperbolic ranges is demonstrated by comparing results for a film of aligned but unordered carbon nanotubes with a film fabricated under optimized conditions to achieve hexagonally close-packed alignment of the nanotubes. The effect of doping on the optical properties and hyperbolic range is discussed.
Shang Jie Yu, John Andris Roberts, et al.
CLEO 2020
John Andris Roberts, Shang Jie Yu, et al.
CLEO 2019
John Andris Roberts, Shang Jie Yu, et al.
Nano Letters
Shang Jie Yu, John Andris Roberts, et al.
NOMA 2019