Terahertz processes in carbon nanotubes

被引：57
作者：
Batrakov, Konstantin G. [1 ]
Kibis, Oleg V. [2 ]
Kuzhir, Polina P. [1 ]
da Costa, Marcelo Rosenau [3 ]
Portnoi, Mikhail E. [4 ]
机构：
[1] Belarusian State Univ, Inst Nucl Problems, Minsk 220030, BELARUS
[2] Novosibirsk State Tech Univ, Dept Appl & Theoret Phys, Novosibirsk 630092, Russia
[3] Univ Brasilia, Int Ctr Condensed Matter Phys, BR-70904970 Brasilia, DF, Brazil
[4] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England
来源：
JOURNAL OF NANOPHOTONICS | 2010年 / 4卷
关键词：
carbon nanotubes; terahertz radiation; STIMULATED-EMISSION; SUPERLATTICE PROPERTIES; OPTICAL-ABSORPTION; GENERATION; ELECTRONS; RADIATION; LIGHT; FIELD; BEAM;
D O I：
10.1117/1.3436585
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We investigated several proposals utilizing the unique electronic properties of carbon nanotubes (CNTs) for a broad range of applications to THz optoelectronics, including THz generation by Cerenkov-type emitters based on carbon nanotubes and by hot electrons in quasi-metallic nanotubes, frequency multiplication in chiral-nanotube-based superlattices controlled by a transverse electric field, and THz radiation detection and emission by armchair nanotubes in a strong magnetic field. Dispersion equations of the electron beam instability and the threshold conditions of the stimulated emission have been derived and analyzed, demonstrating realizability of the nanotube-based nanoFEL at realistic parameters of nanotubes and electronic beams.
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页数：29
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