Quantum properties of multimode light observed despite extreme losses

Quantum properties of light are extremely delicate. When researchers attempt to measure them, even small losses on the way to ...

Superconducting TES array X-ray spectrometer goes into operation at BESSY II

Europe's first and only TES spectrometer at a synchrotron source is now in operation at BESSY II, developed within a ...
SciELO

Analysis of seized cocaine samples by using chemometric methods and FTIR spectroscopy

The aim of this article was to develop a chemometric methodology for determining the chemical profile of cocaine samples seized in Minas Gerais State, Brazil. The adulterant detection and the cocaine ...
SciELO

Vitamin C Determination by Ultraviolet Spectroscopy and Multiproduct Calibration

In this work the vitamin C was determined in industrialized nectar juices through ultraviolet (UV) spectroscopy and multiproduct multivariate calibration, based on partial least squares (PLS) ...
C&EN

Multitrack Linearly Polarized Spectrometer for Simultaneous Kinetic UV–Vis, Polarization-Resolved- Scattering, and Photoluminescence Measurements

Article subjects are automatically applied from the ACS Subject Taxonomy and describe the scientific concepts and themes of the article. Optical spectroscopy serves as a fundamental technique in ...
AZOM

Polymer Identification Using Raman Spectroscopy

This article discusses the identification of polymers such as ABS, PE, PS, PET, and PMMA in various dyes using Raman spectroscopy. Rapid and non-destructive identification is achieved once a suitable ...
GitHub

OXSA (Open-source eXtensible Spectroscopy Analysis) toolbox

Note that the Rodgers lab have an in-house version of OXSA ("RodgersSpectroTools") that contains many extensions particularly for use with Siemens 7T MRIs (Magnetom and Terra) on VB17 and VE-series ...
Electronic Design

Enhance ToF Mass Spectrometry with Low-Noise, High-Speed ADCs

What is time-of-flight mass spectrometry? How ToF MS has gained more interest since the commercialization of MALDI. Why a high-speed ADC is key to ToF MS performance. Mixed-signal front end that ...
IEEE

Implementation of digital lock-in and concentration measurement for Wavelength Modulation Spectroscopy (WMS) based sensors using MATLAB

Abstract: Wavelength Modulation Spectroscopy (WMS) using tunable diode laser is a versatile method for determination of concentration, temperature and velocity of absorbing gaseous molecules. This ...
Scientific Research Publishing

Estimating the Texture of Purple Soils Using Vis-NIR Spectroscopy and Optimized Conversion Models ()

1 Chongqing Key Laboratory of Surface Process and Environment Remote Sensing in the Three Gorges Reservoir Area, School of Geography and Tourism, Chongqing Normal University, Chongqing, China. 2 ...
IEEE

Modeling the dynamic behavior of supercapacitors using impedance spectroscopy

Abstract: This paper presents a new approach of modeling the dynamic behavior of supercapacitors using impedance spectroscopy. The new Matlab/Simulink model can be used in simulating the voltage ...