Bolometric and non-bolometric radio frequency detection in a metallic single-walled carbon nanotube

Abstract

We characterize radio frequency detection in a high-quality metallic single-walled carbon nanotube. At a bath temperature of 77 K, only bolometric (thermal) detection is seen. At a bath temperature of 4.2 K and low bias current, the response is due instead to the electrical nonlinearity of the non-ohmic contacts. At higher bias currents, the contacts recover ohmic behavior and the observed response agrees well with the calculated bolometric responsivity. The bolometric response is expected to operate at terahertz frequencies, and we discuss some of the practical issues associated with developing high frequency detectors based on carbon nanotubes.

11 pages (double-spaced), 3 figures

References in corpus (4)

• Scaling of Resistance and Electron Mean Free Path of Single-Walled Carbon Nanotubes
• Terahertz detection in single wall carbon nanotubes
• Direct and Heterodyne Detection of Microwaves in a Metallic Single Wall Carbon Nanotube
• Energy loss of the electron system in individual single-walled carbon nanotubes

Cited by in corpus (5)

• Bolometric response in graphene based superconducting tunnel junctions
• Performance of Graphene Thermal Photon Detectors
• Terahertz detection mechanism and contact capacitance of individual metallic single-walled carbon nanotubes
• Microwave-induced nonequilibrium temperature in a suspended carbon nanotube
• Carbon nanotubes for polarization sensitive terahertz plasmonic interferometry