Carbon nanotubes as a basis for terahertz emitters and detectors

Costa, M. Rosenau da; Kibis, O. V.; Portnoi, M. E.

doi:10.1016/j.mejo.2008.11.016

Cited by 61 publications

(27 citation statements)

References 7 publications

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“…Graphene-based electromagnetic nano-transceivers will operate in the Terahertz band [9], [25], [16], [22], a frequency range that spans the frequencies between 100 GHz and 10.0 THz. In [8] we investigated the properties of the Terahertz band in terms of path-loss, noise, bandwidth and channel capacity which we are presenting briefly next, and which will be used for the capacity analysis in Sec.…”

Section: Terahertz Channel Behaviormentioning

confidence: 99%

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Information capacity of pulse-based Wireless Nanosensor Networks

Jornet

Akyildiz

2011

2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks

107

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Section: Terahertz Channel Behaviormentioning

confidence: 99%

“…Ongoing research on the characterization of the EM properties of graphene [9], [25], [16] points to the Terahertz band (0.1 -10.0 THz) as the expected frequency range of operation of EM nanotransceivers. In particular, in [9] we determined that a 1 µm long graphene-based nano-antenna can only efficiently radiate in the Terahertz range.…”

mentioning

confidence: 99%

Information capacity of pulse-based Wireless Nanosensor Networks

Jornet

Akyildiz

2011

2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks

107

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“…A number of schemes have been proposed so far [2,3,4,5,6]. Several original schemes utilizing the unique electronic properties of carbon nanotubes (CNTs) and graphene for THz application were brought forward by our group [7,8,9,10,11]. These schemes include THz generation by hot electrons in quasi-metallic CNTs, frequency multiplication in chiral-nanotube-based superlattices controlled by a transverse electric field, tunable THz radiation detection and optically-pumped emission in metallic CNTs in a strong magnetic field and using graphene p-n junctions for sub-wavelength polarization-sensitive THz detection.…”

Section: Introductionmentioning

confidence: 99%

Terahertz transitions in carbon nanotubes and graphene nanoribbons

Saroka

Hartmann

Portnoi

2017

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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-Interband dipole transitions are calculated in quasi-metallic single-walled carbon nanotubes and armchair graphene nanoribbons. It is shown that the curvature effects for tubes and the edge effects for ribbons result not only in a small band gap opening, corresponding to THz frequencies, but also in a significant enhancement of the transition probability rate across the band gap. This makes these nanostructures perspective canditates for sources and detectors of THz radiation.

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“…As a result, classical communication paradigms based on the transmission of continuous signals cannot be used. On the other hand, very short pulses can be generated and efficiently radiated in the nanoscale [6]. In particular, femtosecond-long pulses, which have their main frequency components in the Terahertz band, are already being used in several applications such as nanoscale imaging [12].…”

Section: Introductionmentioning

confidence: 99%