Conference
A widely tunable difference-frequency-generation laser for high-resolution spectroscopy in the 667-865 cm-1range
| العنوان: | A widely tunable difference-frequency-generation laser for high-resolution spectroscopy in the 667-865 cm-1range |
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| المؤلفون: | Shakfa Mohammad Khaled, Lamperti Marco, Gotti Riccardo, Gatti Davide, Elkhazraji Ali, Hakimov Khaiyom, Marangoni Marco, Farooq Aamir |
| المساهمون: | Shakfa Mohammad, Khaled, Lamperti, Marco, Gotti, Riccardo, Gatti, Davide, Elkhazraji, Ali, Hakimov, Khaiyom, Marangoni, Marco, Farooq, Aamir |
| بيانات النشر: | SPIE |
| سنة النشر: | 2021 |
| المجموعة: | IRIS UNIPV (Università degli studi di Pavia) |
| مصطلحات موضوعية: | Crystal orientation, Ethylene, Gallium arsenide, Gas laser, III-V semiconductor, Laser diagnostic, Molecular spectroscopy, Quantum cascade laser, Remote sensing, Spectroscopic analysi, Absorption measurement, Air pollution monitoring, Combustion diagnostic, Difference-frequency generation, External cavity, High resolution, High-resolution spectroscopy, Mid-infrared laser source, Pumping (laser), Difference frequency generation, Laser spectroscopy, Mid-infrared laser sources |
| الوصف: | Mid-infrared (MIR) laser sources are used in a number of applications such as remote sensing, air pollution monitoring, combustion diagnostics, and molecular spectroscopy. Here, we present our work on the development of a MIR laser source based on the difference frequency generation (DFG) process between an external-cavity quantum-cascade-laser tunable over 1750-1835 cm-1 (pump source) and a CO2 gas laser tunable over 921-1083 cm-1 (signal source). The DFG process was realized in a nonlinear, orientation-patterned GaAs crystal, and resulted in an idler spectral range between 667-865 cm-1 with a linewidth of ∼2.3 MHz and an output power of up to ∼31 μW. Exploiting the fine tunability of our DFG laser source, we performed high-resolution absorption measurements of ethylene (C2H4) and acetylene (C2H2). © 2021 SPIE. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/isbn/9781510659155; ispartofbook:Proceedings Volume 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX; 116700A (2021); volume:11670; serie:PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING; https://hdl.handle.net/11571/1497556; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107050080&doi=10.1117/12.2577534&partnerID=40&md5=4f33b30728986ba3ba255cd6fe7add87 |
| DOI: | 10.1117/12.2577534 |
| DOI: | 10.1117/12.2577534&partnerID=40&md5=4f33b30728986ba3ba255cd6fe7add87 |
| الاتاحة: | https://hdl.handle.net/11571/1497556 https://doi.org/10.1117/12.2577534 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107050080&doi=10.1117/12.2577534&partnerID=40&md5=4f33b30728986ba3ba255cd6fe7add87 |
| رقم الانضمام: | edsbas.205AC16C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1117/12.2577534 |
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