Difference frequency generation of narrow-band THz radiation on the basis of a parametric three-wave interaction in a ZnTe crystal

2018 ◽  
Vol 426 ◽  
pp. 395-400 ◽  
Author(s):  
Ivan Panyaev ◽  
Yuliya Dadoenkova ◽  
Igor Zolotovskii ◽  
Dmitry Sannikov
Keyword(s):  
Narrow Band ◽  
Wave Interaction ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Thz Radiation ◽  
Znte Crystal ◽  
Frequency Generation

Intense narrow band terahertz generation via type-II difference-frequency generation in ZnTe using chirped optical pulses

2008 ◽  
Vol 104 (3) ◽  
pp. 033111 ◽  
Author(s):  
J. R. Danielson ◽  
A. D. Jameson ◽  
J. L. Tomaino ◽  
H. Hui ◽  
J. D. Wetzel ◽  
...  
Keyword(s):  
Narrow Band ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Terahertz Generation ◽  
Type Ii ◽  
Optical Pulses ◽  
Frequency Generation

Tunable THz Radiation Source Based on DAST Crystal via Difference Frequency Generation

2020 ◽  
Vol 40 (4) ◽  
pp. 0404001
Author(s):  
徐德刚 Xu Degang ◽  
朱先立 Zhu Xianli ◽  
王与烨 Wang Yuye ◽  
李吉宁 Li Jining ◽  
贺奕焮 He Yixin ◽  
...  
Keyword(s):  
Radiation Source ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Thz Radiation ◽  
Frequency Generation

scholarly journals Spectroscopic Imaging with an Ultra-Broadband (1–4 THz) Compact Terahertz Difference-Frequency Generation Source

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 336
Author(s):  
Atsushi Nakanishi ◽  
Shohei Hayashi ◽  
Hiroshi Satozono ◽  
Kazuue Fujita
Keyword(s):  
Imaging Technique ◽  
Spectroscopic Imaging ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Quality Monitoring ◽  
Terahertz Emission ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Frequency Generation ◽  
Multi Mode

We demonstrate spectroscopic imaging using a compact ultra-broadband terahertz semiconductor source with a high-power, mid-infrared quantum cascade laser. The electrically pumped monolithic source is based on intra-cavity difference-frequency generation and can be designed to achieve an ultra-broadband multi-mode terahertz emission spectrum extending from 1–4 THz without any external optical setup. Spectroscopic imaging was performed with three frequency bands, 2.0 THz, 2.5 THz and 3.0 THz, and as a result, this imaging technique clearly identified three different tablet components (polyethylene, D-histidine and DL-histidine). This method may be highly suitable for quality monitoring of pharmaceutical materials.

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