Results 51 to 60 of about 148,659 (287)

Unsupervised calibration for noninvasive glucose-monitoring devices using mid-infrared spectroscopy [PDF]

Journal of Innovative Optical Health Sciences, 2018
Noninvasive, glucose-monitoring technologies using infrared spectroscopy that have been studied typically require a calibration process that involves blood collection, which renders the methods somewhat invasive.
Ryosuke Kasahara, Saiko Kino, Shunsuke Soyama, Yuji Matsuura   +3 more
doaj   +1 more source

High Coherence Mid-Infrared Dual Comb Spectroscopy Spanning 2.6 to 5.2 microns

, 2017
Mid-infrared dual-comb spectroscopy has the potential to supplant conventional high-resolution Fourier transform spectroscopy in applications that require high resolution, accuracy, signal-to-noise ratio, and speed.
Baumann, Esther, Coddington, Ian, Diddams, Scott A., Giorgetta, Fabrizio R., Herman, Daniel, Newbury, Nathan R., Ycas, Gabriel   +6 more
core   +1 more source

High‐Detectivity GeSn Mid‐Infrared Photodetectors for Sensitive Infrared Spectroscopy

Advanced Photonics Research
Infrared (IR) spectroscopy is a powerful, nondestructive analytical technique that requires cost‐effective and highly sensitive IR photodetectors (PDs).
Meng‐Hsien Chou, Radhika Bansal, Yue‐Tong Jheng, Greg Sun, Wei Du, Shui‐Qing Yu, Guo‐En Chang   +6 more
doaj   +1 more source

Silicon-chip-based mid-infrared dual-comb spectroscopy

Nature Communications, 2018
Dual-comb spectroscopy is a powerful tool for realizing rapid spectroscopic measurements with high sensitivity and selectivity. Here, Yu et al. demonstrate silicon microresonator-based dual comb spectroscopy in the mid-infrared region, where strong ...
Mengjie Yu, Yoshitomo Okawachi, Austin G. Griffith, Nathalie Picqué, Michal Lipson, Alexander L. Gaeta   +5 more
doaj   +1 more source

Single-shot mid-infrared incoherent holography using Lucy-Richardson-Rosen algorithm

Opto-Electronic Science, 2022
In recent years, there has been a significant transformation in the field of incoherent imaging with new possibilities of compressing three-dimensional (3D) information into a two-dimensional intensity distribution without two-beam interference (TBI ...
Vijayakumar Anand, Molong Han, Jovan Maksimovic, Soon Hock Ng, Tomas Katkus, Annaleise Klein, Keith Bambery, Mark J. Tobin, Jitraporn Vongsvivut, Saulius Juodkazis   +9 more
doaj   +1 more source

The Rich Mid-Infrared Environments of Two Highly-Obscured X-ray Binaries: Spitzer Observations of IGR J16318-4848 and GX 301-2 [PDF]

, 2007
We present the results of Spitzer mid-infrared spectroscopic observations of two highly-obscured massive X-ray binaries: IGR J16318-4848 and GX301-2. Our observations reveal for the first time the extremely rich mid-infrared environments of this type of ...
Courvoisier T. J.-L., Dae-Sik Moon, David L. Kaplan, Fiona A. Harrison, Hummer D. G., Jeong-Eun Lee, Kaper L., Kunze D., Lamers H. J. G. L. M., Lamers H. J. G. L. M., Peter G. Martin, William T. Reach   +11 more
core   +3 more sources

Mid-infrared spectroscopy of the Andromeda galaxy [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We present Spitzer/Infrared Spectrograph (IRS) 5-21 micron spectroscopic maps towards 12 regions in the Andromeda galaxy (M31). These regions include the nucleus, bulge, an active region in the star-forming ring, and 9 other regions chosen to cover a range of mid-to-far-infrared colours. In line with previous results, PAH feature ratios (6.2 micron and
Hemachandra, D., Barmby, P., Peeters, E., Willner, S. P., Ashby, M. L.N., Smith, H. A., Gordon, K. D., Smith, D. A., Fazio, G. G.   +8 more
openaire   +4 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

A Review on the Role of Vibrational Spectroscopy as An Analytical Method to Measure Starch Biochemical and Biophysical Properties in Cereals and Starchy Foods

Foods, 2014
Starch is the major component of cereal grains and starchy foods, and changes in its biophysical and biochemical properties (e.g., amylose, amylopectin, pasting, gelatinization, viscosity) will have a direct effect on its end use properties (e.g., bread,
D. Cozzolino, S. Degner, J. Eglinton
doaj   +1 more source