Recent progress on efficient generation of monochromatic THz pulses based on difference-frequency generation

2010 ◽  
Author(s):  
Yujie J. Ding ◽  
Yi Jiang ◽  
Guibao Xu ◽  
Ioulia B. Zotova
Keyword(s):  
Recent Progress ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Efficient Generation ◽  
Frequency Generation

scholarly journals Recent progress of tunable terahertz sources based on difference frequency generation

2016 ◽  
Vol 65 (7) ◽  
pp. 070702
Author(s):  
Chai Lu ◽  
Niu Yue ◽  
Li Yan-Feng ◽  
Hu Ming-Lie ◽  
Wang Qing-Yue
Keyword(s):  
Recent Progress ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Terahertz Sources ◽  
Frequency Generation

Recent Progress of GaP THz Signal Generator - Light Source for High Accurate Terahertz Spectrometer

2015 ◽  
Vol 1117 ◽  
pp. 118-121
Author(s):  
Tetsuo Sasaki ◽  
Tadao Tanabe ◽  
Junichi Nishizawa
Keyword(s):  
Light Source ◽  
Recent Progress ◽  
Continuous Wave ◽  
Difference Frequency Generation ◽  
Signal Generator ◽  
Difference Frequency ◽  
First Report ◽  
Thz Wave ◽  
Frequency Generation

We have developed a continuous wave THz Signal Generator on the principle of Difference Frequency Generation in a GaP crystal and constructed a high accurate CW THz spectrometer using it as a light source. Combining with a bolometer detector cooled by a mechanical cooler, the spectrometer is now working as non-stop system. Increasing the power of CW THz wave up to 100 nW, uncooled detector or camera is now available. This is the first report of CW THz beam observation generated at the surface of GaP crystal.

Recent progress on terahertz generation based on difference frequency generation: from power scaling to compact and portable sources (Invited Paper)

2011 ◽  
Vol 9 (11) ◽  
pp. 110004-110013 ◽  
Author(s):  
Yujie J. Ding Yujie J. Ding ◽  
Pu Zhao Pu Zhao ◽  
Srinivasa Ragam Srinivasa Ragam ◽  
Da Li Da Li ◽  
Ioulia B. Zotova Ioulia B. Zotova
Keyword(s):  
Recent Progress ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Terahertz Generation ◽  
Power Scaling ◽  
Frequency Generation

scholarly journals Efficient generation of broadband MIR radiation by difference–frequency generation in LiGaS2

2019 ◽  
Vol 205 ◽  
pp. 01019
Author(s):  
Bo-Han Chen ◽  
Tamas Nagy ◽  
Peter Baum
Keyword(s):  
Phase Modulation ◽  
Difference Frequency Generation ◽  
Pulse Generation ◽  
Difference Frequency ◽  
Self Phase Modulation ◽  
Efficient Generation ◽  
Frequency Generation

We report a surprisingly infrared (MIR) pulse generation in simultaneous interplay of intra-pulse self-phase-modulation and dispersion. broadband and efficient middle-LiGaS2 (LGS) by invoking a difference 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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