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Didem P. Aykas and Luis Rodriguez-Saona
In this study, we introduce an approach for quickly profiling the nutritional content of fruit juices by using a portable Fourier transform mid-infrared (FT-IR) device. This method enables real-time prediction and simultaneous analysis of key components,...
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Zhijian Wu, Yang Ding and Xuefeng Peng
We fabricated a core-cladding Ge?Sb?Se glass fiber with a Ge12.5Sb15Se72.5 core and Ge15Sb10Se75 cladding, achieved a supercontinuum spectrum spanning from 2 µm to 9 µm by pumping the Ge?Sb?Se fiber with a core diameter of 11 µm using a femtosecond laser...
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Joel B. Johnson, Kerry B. Walsh and Mani Naiker
This study compared the performance of near-infrared spectroscopy (NIRS) and mid-infrared spectroscopy (MIRS) for the prediction of moisture, protein, total phenolic content (TPC), ferric reducing antioxidant potential (FRAP) and total monomeric anthocya...
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Soon Hock Ng, Vijayakumar Anand, Molong Han, Daniel Smith, Jovan Maksimovic, Tomas Katkus, Annaleise Klein, Keith Bambery, Mark J. Tobin, Jitraporn Vongsvivut and Saulius Juodkazis
The Fourier transform infrared microspectroscopy (FTIRm) system of the Australian Synchrotron has a unique optical configuration with a peculiar beam profile consisting of two parallel lines. The beam is tightly focused using a 36× Schwarzschild objectiv...
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Stavros Misopoulos, Dirk Nather and Jose Marques-Hueso
Much scientific equipment requires the use of humidity control technologies. This includes instruments with hygroscopic optics, such as infrared spectrometers, OPOs and some lasers. The most common strategies include nitrogen purging or desiccant bag rep...
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Zijian Wang, Bingyang Li, Yuheng Wang, Renzhe Han, Yaru Yang, Yongji Yu and Guangyong Jin
This paper presents an external-cavity dual-wavelength mid-infrared multiple optical parametric oscillator based on a single MgO:APLN crystal, which is pumped by a pulsed 1.064 µm laser. The output power and beam qualities of parametric lasers at differe...
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Zekang Liu, Peng Wang, Ran Dong, Wei Gong, Jingjie Li, Dichao Dai, Hui Yan and Yongzhe Zhang
Today, colloidal quantum dots (CQDs) have received wide attention due to their properties of tunable infrared absorption. For example, HgTe colloidal quantum dots have shown excellent optical absorption (absorption coefficient a > 104 cm-1), spectral abs...
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Hongyu Ren, Qianyi Shangguan, Zijun Song, Yong Zhao, Zao Yi, Guolu Ma, Jianguo Zhang, Hua Yang, Shifa Wang and Pinghui Wu
This paper presents a graphene metamaterial absorber based on impedance matching. A finite difference in time domain (FDTD) method is used to achieve a theoretically perfect absorption in the mid-infrared band. A basis is created for the multiband stable...
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Pierre Delullier, Laurent Calvez, Guillaume Druart, Florence De La Barrière, Christophe Humbert, Bertrand Poumellec and Matthieu Lancry
Chalcogenide glasses are increasingly being developed for photonic applications, particularly in the field of mid-infrared optical imaging. In this paper, we study the photosensitivity of one chalcogenide to direct femtosecond laser writing and its possi...
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Huda Aslam, Md Maruf Mortula, Sherif Yehia, Tarig Ali and Manreet Kaur
Leakages from water distribution infrastructures are responsible for a considerable amount of water losses. Consequently, innovative, non-destructive techniques (NDT) of leakage detection for early recognition is vital. In this study, the leak detection ...
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