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We demonstrate THz-induced transparency in two types of single-layer CVD graphene samples utilizing high-field THz pulses. The nonlinear THz transmission depends on the local conductivity of the samples and dynamically varies in the time domain.
We demonstrate large THz transmission enhancement (>15%) in single-layer CVD graphene at high THz intensities (ETHz>10 kV/cm). The nonlinear effects exhibit non-Drude behavior in the THz conductivity, where THz fields induce extreme non-equilibrium electron distributions.
Exact replicas of carbon nanotube devices as fabricated on SiO2/Si substrates are prepared on various non‐conventional substrates such as nonplanar or soft substrates (see images) by a simple, yet versatile, transfer‐printing “cut‐and‐paste” method. In this way, harsh growth and fabrication processes can be minimized on the target substrates. The electrical characteristics of transfer‐printed devices...
Scanning photocurrent microscopy is a unique tool that facilitates both device characterization and the study of fundamental properties of optoelectronic nanomaterials. We have built a scanning photocurrent microscope that incorporates a super continuum laser as the light source. The microscope illuminates nanoelectronic devices with a micron-scale light spot and a photon energy that is tunable from...
We report the fabrication of suspended carbon nanotube field effect transistors (CNT FETs) designed for biological sensing applications. We compare the electrical properties of our suspended CNT FET design to standard surface based CNT FETs. In particular, we show a reduction in environmental noise, suggesting that the new sensor design is a promising candidate for low-noise sensing applications.
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