Terahertz wave emission with 1.5 μm pump from photoconductive antenna using stacked Er-doped-InAs quantum dot layers with ultrafast carrier relaxation

We fabricated a photoconductive antenna (PCA) with Er-doped InAs quantum dot (QD) layers on a GaAs substrate and demonstrated THz wave generation with 1.5 μm pump. In terahertz time-domain spectroscopy (THz-TDS), PCAs require high mobility and short lifetimes of photocarriers since the carriers need...

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Veröffentlicht in:	Journal of applied physics 2023-10, Vol.134 (14)
Hauptverfasser:	Minami, Yasuo, Abe, Hiromutsu, Lu, Xiangmeng, Kumagai, Naoto, Kitada, Takahiro
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Applied physics Indium arsenides Optical communication Optical pulses Photoelectric effect Quantum dots Substrates Terahertz frequencies Wave generation
Online-Zugang:	Volltext
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