The future of spectroscopy: strengths and challenges
Rob Morris, marketing director, Ocean Optics, says that science, education & entrepreneurship initiatives are needed to see growth in spectroscopy and photonics
Rob Morris, marketing director, Ocean Optics, says that science, education & entrepreneurship initiatives are needed to see growth in spectroscopy and photonics
Traditional thinking is that compact spectrometers do not offer the sensitivity or speed needed to compete with benchtop fluorimeters for many fluorescence measurements. We explain how limit of detection (LOD) and limit of quantitation (LOQ) are defined and measured, and challenge that preconception by demonstrating picomolar LOD for fluorescein with a compact, cost-effective spectrometer capable of capturing 50 ms scans with ease.
GL Optic has implemented the new flicker metric stroboscopic visibility measure, which determines the probability of a stroboscopic effect, in its new GL Spectis 1.0 T Flicker spectrometer
The Centre National d’Etudes Spatiales, The Research Institute in Astrophysics and Planetology, and electrical engineering giant Thales Group are in the final stages of testing a new laser spectroscopy system for NASA’s upcoming Mars 2020 rover
Fluorescence spectroscopy has been used to characterise natural organic matter (NOM) in water. Excitation-Emission maps reveal the nature and concentration of NOM in river water and can be used as a routine analysis technique in water treatment facilities.
MIT researchers have produced a new chip-mounted terahertz laser that has been selected by NASA to measure emissions from the interstellar medium
The fluorescence excitation spectra of single organic molecules in a solid state crystal are measured at cryogenic temperatures using a single frequency tunable laser light source based on optical parametric oscillator technology. This laser exhibits promising features as a light source for spectroscopy applications, including a broad tuning range from 450 to 650 nm, narrow linewidth < 1 MHz and mode-hop-free tuning over > 25 GHz. This application note presents the experimental setup, measured spectra and discusses the applicability of this kind of laser for high-resolution spectroscopy.
The University of Glasgow’s School of Physics and Astronomy is today unveiling an advanced EPSRC-funded materials imaging facility worth £1 million
Andrew Williams finds that optical technologies are now recognised as critical tools in the ongoing quest to test and identify contaminants in alcohol, and tackle problems related to the trade in counterfeit drinks
David Creasey details Wasatch Photonics’ history with Jessica Rowbury and discusses the challenges and opportunities going forwards