Coupling into Hyperbolic Carbon-Nanotube Films with a Deep-Etched Antenna Grating

Efficient Emission of Highly Polarized Thermal Radiation from a Suspended Aligned Carbon Nanotube Film

“…In this study, we employed highly aligned and suspended CNT films to develop electrically driven emitters capable of producing highly polarized thermal radiation. These films were fabricated using controlled vacuum filtration − and exhibited anisotropic properties with respect to the CNT alignment direction. − We observed broadband radiation emitted from the CNT films with wavelengths ranging from the infrared to the visible range. Notably, we achieved an enhanced degree of polarization as high as ∼0.9 with the polarization parallel to the CNT alignment direction, independently of the current direction.…”