A monochromatic and high-power terahertz source tunable in the ranges of 2.7–38.4 and 58.2–3540 μm for variety of potential applications
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- Wei Shi
- Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, Pennsylvania 18015
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- Yujie J. Ding
- Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, Pennsylvania 18015
書誌事項
- 公開日
- 2004-03-08
- DOI
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- 10.1063/1.1649802
- 公開者
- AIP Publishing
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説明
<jats:p>Based on phase-matched collinear difference-frequency generation in a single GaSe crystal, continuously tunable and coherent radiation in the extremely wide ranges of 2.7–38.4 and 58.2–3540 μm has been achieved. This unique source has the additional advantages of high coherence (narrow linewidth) and simple alignment. The peak output power for the terahertz radiation reaches 209 W at the wavelength of 196 μm (1.53 THz), which corresponds to a power conversion efficiency of 0.055%. Moreover, the terahertz transmission spectra on DNA macromolecules and protein were directly measured, demonstrating some potential and important applications of this terahertz source.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 84 (10), 1635-1637, 2004-03-08
AIP Publishing