Optical sensors

High Precision Comb-Assisted Molecular Spectroscopy in the Mid-Infrared

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B2 L5 R5220

The design of laser-based optical sensors relies heavily on precise spectroscopic knowledge of atomic and molecular absorption transitions. Accurate spectroscopic information is invaluable in several fields such as biology, chemistry, astronomy, and environmental science. Within the electromagnetic spectrum, the mid-infrared (MIR) region can enable sensors with higher sensitivity due to the stronger absorption cross-sections. Moreover, MIR spectral transitions correspond to the fundamental vibrational motions of the molecules and are thus considered fingerprints of the molecular structure. Vibrational bands contain many rotational transitions, resulting in fine-splitting of spectral bands, particularly in gaseous samples. In order to resolve the fine rotational structure of vibrational bands, high-resolution MIR spectrometers are needed.

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Redha Al Ibrahim

Postdoctoral Research Fellow, Electrical and Computer Engineering
Ph.D student at Photonics Laboratory in the Division of Computer, Electrical and Mathematical Sciences & Engineering (CEMSE) at King Abdullah University of Science & Technology (KAUST). Education Profile January 2020 - Present, Ph.D. in Electrical Engineering at KAUST, Thuwal, Saudi Arabia August 2018 - December 2019, M.S. in Electrical Engineering at KAUST, Thuwal, Saudi Arabia August 2014 - May 2018, B.S in Optics at University of Rochester, Rochester, NY, USA Professional Memberships ​Member of OSA (Optical Society of America) Member of SPIE (International Society for Optics and Photonics)

Juan Manuel Marin Mosquera

PhD Student juan.mosquera@kaust.edu.sa Introduction Juan M. Marin is a PhD student in Electrical Engineering at King Abdullah University of Science and Technology (KAUST). He received a BSc in Electrical Engineering from The National University of Colombia in 2021. His research focuses on Distributed Fiber Optic Sensing (DFOS) and developing multi-configuration systems based on optical fiber, embedding DFOS in optical communication and power delivery networks. Research Interests Fiber Optics Distributed Fiber Optic Sensing Machine Learning Selected Publications Yujian Guo*, Juan M. Marin*

Islam Ashry

Senior Research Scientist, Electrical and Computer Engineering
Senior Research Scientist with over 10 years of experience in optics, specializing in developing optical sensors as real-world solutions for underwater exploration, smart agriculture, and the oil and gas industry. Senior Member of the National Academy of Inventors (NAI), IEEE, and IEEE Photonics Society.

Bidoor AlSaif

Bidoor AlSaif is a physics graduate from College of Science (Imam Abdulrahman bin Faisal University) in Dammam. Thereafter, she completed her MS degree in Physics from the King Saud University. She joined KAUST Electrical Engineering Program in 2013 in to peruse her PhD degree. Motivated by astonishing world of laser physics and its wide applications, she joined Prof. Aamir Farooq to develop sensors in the mid-IR with quantum-cascade lasers (QCLs) and to perform precise spectroscopic measurements. She achieved highly accurate spectroscopic measurements of one of the most important greenhouse