scholarly journals Investigation of high power terahertz emission in gap crystal based on collinear difference frequency generation

2013 ◽  
Vol 62 (12) ◽  
pp. 120704
Author(s):  
Huang Jing-Guo ◽  
Lu Jin-Xing ◽  
Zhou Wei ◽  
Tong Jing-Chao ◽  
Huang Zhi ◽  
...  
Keyword(s):  
High Power ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Terahertz Emission ◽  
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.

Intensive terahertz emission from GaSe0.91S0.09 under collinear difference frequency generation

2013 ◽  
Vol 103 (8) ◽  
pp. 081104 ◽  
Author(s):  
Jingguo Huang ◽  
Zhiming Huang ◽  
Jingchao Tong ◽  
Cheng Ouyang ◽  
Junhao Chu ◽  
...  
Keyword(s):  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Terahertz Emission ◽  
Frequency Generation
Sign in / Sign up

Export Citation Format

Share Document