Rapidly-tunable mid-infrared coherent light source with difference frequency generation

2006 ◽  
Author(s):  
Masaki Yumoto ◽  
Masahumi Yamashita ◽  
Takayo Ogawa ◽  
Norihito Saito ◽  
Satoshi Wada
Keyword(s):  
Light Source ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Coherent Light ◽  
Mid Infrared ◽  
Frequency Generation ◽  
Coherent Light Source

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.

1 W 589 nm coherent light-source achieved by quasi-intracavity sum-frequency-generation

2005 ◽  
Author(s):  
Norihito Saito ◽  
Kazuyuki Akagawa ◽  
Yutaka Hayano ◽  
Hideki Takami ◽  
Yoshihiko Saito ◽  
...  
Keyword(s):  
Light Source ◽  
Sum Frequency Generation ◽  
Coherent Light ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Coherent Light Source

scholarly journals Flexible Electro-Optic, Single-Crystal Difference Frequency Generation Architecture for Ultrafast Mid-Infrared Dual-Comb Spectroscopy

ACS Photonics ◽  
2018 ◽  
Vol 5 (6) ◽  
pp. 2348-2353 ◽  
Author(s):  
Borja Jerez ◽  
Pedro Martín-Mateos ◽  
Frederik Walla ◽  
Cristina de Dios ◽  
Pablo Acedo
Keyword(s):  
Single Crystal ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Mid Infrared ◽  
Electro Optic ◽  
Frequency Generation

scholarly journals Widely-tunable mid-infrared frequency comb source based on difference frequency generation

2012 ◽  
Vol 37 (12) ◽  
pp. 2232 ◽  
Author(s):  
Axel Ruehl ◽  
Alessio Gambetta ◽  
Ingmar Hartl ◽  
Martin E. Fermann ◽  
Kjeld S. E. Eikema ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Mid Infrared ◽  
Frequency Generation

Mid-infrared multi-mode absorption spectroscopy, MUMAS, using difference frequency generation

2014 ◽  
Vol 118 (3) ◽  
pp. 343-351 ◽  
Author(s):  
Henry Northern ◽  
Seamus O’Hagan ◽  
Michelle L. Hamilton ◽  
Paul Ewart
Keyword(s):  
Absorption Spectroscopy ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Mid Infrared ◽  
Frequency Generation ◽  
Multi Mode

Efficient Mid-Infrared Difference-Frequency Generation Technology Based on Passive All-Optical Synchronization

2020 ◽  
Vol 40 (20) ◽  
pp. 2036001
Author(s):  
徐明航 Xu Minghang ◽  
武佳美 Wu Jiamei ◽  
李博文 Li Bowen ◽  
江云峰 Jiang Yunfeng ◽  
郝强 Hao Qiang ◽  
...  
Keyword(s):  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Mid Infrared ◽  
All Optical ◽  
Frequency Generation ◽  
Generation Technology
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