All-optoelectronic continuous-wave terahertz systems

被引：12

作者：

Löffler, T ^{[1
]}

Siebert, KJ ^{[1
]}

Quast, H ^{[1
]}

Hasegawa, N ^{[1
]}

Loata, G ^{[1
]}

Wipf, R ^{[1
]}

Hahn, T ^{[1
]}

Thomson, M ^{[1
]}

Leonhardt, R ^{[1
]}

Roskos, HG ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Phys, D-60054 Frankfurt, Germany

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2004年 / 362卷 / 1815期

关键词：

lasers; THz radiation; THz imaging;

D O I：

10.1098/rsta.2003.1326

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We discuss the optoelectronic generation and detection of continuous-wave terahertz (THz) radiation by the mixing of visible/near-infrared laser radiation in photoconductive antennas. We review attempts to reach higher THz output-power levels by reverting from mobility-lifetime-limited photomixers to transit-time-limited p-in photodiodes. We then describe our implementation of a THz spectroscopy and imaging-measurement system and demonstrate its imaging performance with several examples. Possible application areas of THz imaging in the biomedical field and in surface characterization for industrial purposes are explored.

引用

页码：263 / 279

页数：17

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