
Proceedings Paper
Coherent terahertz-wave generation and detection over a wide frequency range using DAST crystalsFormat | Member Price | Non-Member Price |
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Paper Abstract
Terahertz-frequency (THz) waves have shown potential for a wide range of applications. We have developed tunable
THz-wave sources using nonlinear optical crystals, which have several advantages, including frequency agility, wide
tunability, high output, and high coherency. We found that the organic nonlinear crystal of
4-dimethylamino-N-methyl-4-stilbazolium-tosylate (DAST) had particular potential for ultra-wide THz-wave generation
from sub-THz to mid-infrared frequencies. Using DAST, we manufactured a coherent, tunable source (1-40 THz) with
frequency agility. Moreover, we demonstrated THz-wave detection through up-conversion using DAST or MgO:LiNbO3
nonlinear optical crystals, which provided a fast response, high sensitivity, and room-temperature operation.
Paper Details
Date Published: 23 February 2009
PDF: 8 pages
Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970C (23 February 2009); doi: 10.1117/12.808618
Published in SPIE Proceedings Vol. 7197:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
Peter E. Powers, Editor(s)
PDF: 8 pages
Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970C (23 February 2009); doi: 10.1117/12.808618
Show Author Affiliations
Hiroaki Minamide, RIKEN Sendai (Japan)
Hiromasa Ito, RIKEN Sendai (Japan)
Tohoku Univ. (Japan)
Tohoku Univ. (Japan)
Published in SPIE Proceedings Vol. 7197:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
Peter E. Powers, Editor(s)
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