Determination of the maximum capabilities of high-power oxide glass fibers in the mid-infrared region for medical applications

2003 ◽  
Author(s):  
Eirini I. Papagiakoumou ◽  
Bernhard Klinkenberg ◽  
Alexandros A. Serafetinides
Keyword(s):  
High Power ◽  
Glass Fibers ◽  
Infrared Region ◽  
Oxide Glass ◽  
Medical Applications ◽  
Mid Infrared

High power mid-infrared supercontiuum light sources based on fluorotellurite glass fibers (invited)

2018 ◽  
Vol 47 (8) ◽  
pp. 803004
Author(s):  
贾志旭 Jia Zhixu ◽  
姚传飞 Yao Chuanfei ◽  
李真睿 Li Zhenrui ◽  
贾世杰 Jia Shijie ◽  
赵志鹏 Zhao Zhipeng ◽  
...  
Keyword(s):  
High Power ◽  
Glass Fibers ◽  
Light Sources ◽  
Mid Infrared

scholarly journals Development and validation of an environmentally friendly attenuated total reflectance in the mid-infrared region method for the determination of ethanol content in used engine lubrication oil

Talanta ◽  
2013 ◽  
Vol 109 ◽  
pp. 191-196 ◽  
Author(s):  
Rafael Rodrigues Hatanaka ◽  
Rodrigo Sequinel ◽  
Carlos Eduardo Gualtieri ◽  
Antônio Carlos Bergamaschi Tercini ◽  
Danilo Luiz Flumignan ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Infrared Region ◽  
Attenuated Total Reflectance ◽  
Mid Infrared ◽  
Total Reflectance ◽  
Region Method ◽  
Ethanol Content ◽  
Lubrication Oil ◽  
Development And Validation

Simulation of the spectra and determination of the optical constants of online low-emission glass from visible to mid-infrared region

2009 ◽  
Vol 517 (9) ◽  
pp. 2963-2967 ◽  
Author(s):  
Shuiping Huang ◽  
Zhanshan Wang ◽  
Jian Xu ◽  
Li Wang ◽  
Daxue Lu ◽  
...  
Keyword(s):  
Optical Constants ◽  
Infrared Region ◽  
Mid Infrared ◽  
Low Emission

scholarly journals Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1238 ◽  
Author(s):  
Tomasz Ragin ◽  
Agata Baranowska ◽  
Marcin Kochanowicz ◽  
Jacek Zmojda ◽  
Piotr Miluski ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Optical Fibre ◽  
Positive Impact ◽  
Infrared Region ◽  
Infrared Emission ◽  
Bismuth Germanate ◽  
Oxide Glass ◽  
Germanate Glass ◽  
Mid Infrared ◽  
Co Doped

Bismuth-germanate glasses with low hydroxide content co-doped with Ho3+/Yb3+ ions have been investigated in terms of structural and spectroscopic properties. To reduce OH- ions content and improve transmittance value at the wavelength of 3.1 µm, the glass synthesis has been carried out in low vacuum conditions (45–65 mBar). The composition of the host glass based on heavy metal oxides affects the maximum phonon energy (hωmax = 724 cm−1), which low value has a positive impact on the mid-infrared emission parameters. Emission band at the wavelength of 2.87 µm was observed in glass co-doped with mol% 0.25 Ho2O3/0.75 Yb2O3 under 980 nm high power laser diode wavelength excitation. Lifetime measurements of the Yb3+:2F5/2 quantum level indicate efficient Yb3+ → Ho3+ energy transfer (η = 61%). The developed active bismuth-germanate glass was used as the core of optical fibre operating in the mid-infrared region.

Application of Molecular Spectroscopy in the Mid-Infrared Region to the Determination of Glucose and Cholesterol in Whole Blood and in Blood Serum

1997 ◽  
Vol 51 (5) ◽  
pp. 631-635 ◽  
Author(s):  
G. Budínová ◽  
J. Salva ◽  
K. Volka
Keyword(s):  
Blood Serum ◽  
Whole Blood ◽  
Molecular Spectroscopy ◽  
Internal Standard ◽  
Infrared Region ◽  
Serum Samples ◽  
Mid Infrared ◽  
Calibration Models ◽  
Set Up

The feasibility of applying molecular spectroscopy in the mid-infrared region to the quantitation of glucose and cholesterol in whole blood and in blood serum was examined by measuring the samples in the dry state on a polyethylene carrier. The partial least-squares (PLS) algorithm was employed to set up the calibration models. Analysis was performed by normalizing the spectra to a standard area. Evidence that this approach is warranted was obtained through experiments where potassium thiocyanate served as the internal standard. The following average PRESS1/2 values (PRESS stands for prediction residual error sum of squares) emerged from the calibration: glucose, 22.3 mg/dL; cholesterol, 31.3 mg/dL. Such errors are comparable with those achieved in attenuated total reflectance (ATR) measurements. The calibration models set up for blood serum samples fit better than those for whole blood samples. If the procedure of sample application onto the carrier is improved, the method may work well for the determination of glucose and cholesterol in whole blood and in blood serum.

Determination of main raw material source in bar soaps using mid-infrared spectroscopy combined with classification tools

2021 ◽  
Vol 164 ◽  
pp. 106029
Author(s):  
Diego Maciel Gerônimo ◽  
Sheila Catarina de Oliveira ◽  
Frederico Luis Felipe Soares ◽  
Patricio Peralta-Zamora ◽  
Noemi Nagata
Keyword(s):  
Infrared Spectroscopy ◽  
Raw Material ◽  
Material Source ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy
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