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11 March 2020 Mid-IR supercontinuum based vibrational overtone combination spectroscopy (Conference Presentation)
Kyei Kwarkye, Manoj Kumar Dasa, Abubakar I. Adamu, Getinet Woyessa, Christian R. Petersen, Søren B. Engelsen, Ole Bang
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Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112601Q (2020) https://doi.org/10.1117/12.2545960
Event: SPIE LASE, 2020, San Francisco, California, United States
Abstract
We demonstrate a high repetition rate (3 MHz) Mid-IR supercontinuum (SC) source spanning whose spectrum spanning 1000-4200 nm using a cascade of different nonlinear fibers. Multi-tone absorption spectroscopy measurements are subsequently carried out using this source and a scanning spectrometer probing various concentrations and a combination of different analytes. We further explore a novel algorithm for rearranging the absorption in the IR-region and the NIR region for three-dimensional modeling. We show this method of analyzing the data is robust, that is being able to predict newly added samples of slightly different nature without having to the recalibrate the model.
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Kyei Kwarkye, Manoj Kumar Dasa, Abubakar I. Adamu, Getinet Woyessa, Christian R. Petersen, Søren B. Engelsen, and Ole Bang "Mid-IR supercontinuum based vibrational overtone combination spectroscopy (Conference Presentation)", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601Q (11 March 2020); https://doi.org/10.1117/12.2545960
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KEYWORDS
Mid-IR
Spectroscopy
3D modeling
Data modeling
ZBLAN
Amplifiers
Erbium
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