Emission of Terahertz Radiation from Two-Dimensional Electron Systems in Semiconductor Nano- and Hetero-Structures
| Autor: | Takayuki Watanabe, Hiromi Karasawa, Amine El Moutaouakil, Maki Suemitsu, Tetsuya Suemitsu, Tsuneyoshi Komori, Eiichi Sano, Akira Satou, Victor Ryzhii, Wojciech Knap, Taiichi Otsuji |
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| Přispěvatelé: | Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Plasmons
Materials science Terahertz radiation Physics::Optics 02 engineering and technology Population inversion 01 natural sciences law.invention Condensed Matter::Materials Science law Terahertz emission 0103 physical sciences Heterostructures Two-dimensional electrons Electrical and Electronic Engineering Instrumentation Plasmon 010302 applied physics Radiation business.industry Graphene Condensed Matter::Other Heterojunction 021001 nanoscience & nanotechnology Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Terahertz spectroscopy and technology Semiconductor Femtosecond [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Optoelectronics 0210 nano-technology business |
| Zdroj: | Journal of Infrared, Millimeter and Terahertz Waves Journal of Infrared, Millimeter and Terahertz Waves, Springer Verlag, 2011, 32 (5), pp.629-645. ⟨10.1007/s10762-010-9714-0⟩ |
| ISSN: | 1866-6892 1866-6906 |
| DOI: | 10.1007/s10762-010-9714-0⟩ |
| Popis: | This paper reviews recent advances in emission of terahertz radiation from two-dimensional (2D) electron systems in semiconductor nano-heterostructures. 2D plasmon resonance is first presented to demonstrate intense broadband terahertz emission from InGaP/InGaAs/GaAs and InAlAs/InGaAs/InP material systems. The device structure is based on a high-electron mobility transistor and incorporates the author’s original interdigitated dual-grating gates. Second topic focuses on graphene, a monolayer carbon-atomic honeycomb lattice crystal, exhibiting unique carrier transport and optical properties owing to massless and gapless energy spectrum. Coherent stimulated terahertz emission from femtosecond infrared-laser pumped epitaxial graphene is experimentally observed, reflecting the occurrence of negative dynamic conductivity and population inversion. |
| Databáze: | OpenAIRE |
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