seen from Netherlands
seen from Netherlands
seen from Norway
seen from Italy
seen from Australia
seen from China
seen from China
seen from Singapore
seen from United Kingdom
seen from Yemen
seen from United States
seen from Russia
seen from United States
seen from Thailand
seen from Germany
seen from United Kingdom
seen from China
seen from Russia
seen from United States
seen from United States
i know this is a *bit* late, but here’s day 9 of 100 days of productivity! i’m reviewing for organic chemistry, and i made a quick review page for ir spectroscopy. overall, i had a fairly unproductive day, but i decided to take it easy and work extra hard tomorrow :) i still went on a 3-mile walk and finished a 10-page short story that i had to do today though. quarantine is really sucking the motivation out of me :/
Using a crystal to link visible light to infrared opens a window on infrared sensing
A cheap, compact technique for analyzing samples at infrared wavelengths using visible-wavelength components could revolutionize medical and material testing.
Infrared spectroscopy is used for material analysis, in forensics and in the identification of historical artifacts, for example,—but scanners are bulky and expensive. Visible-wavelength technology is cheap and accessible in items such as smartphone cameras and laser pointers.
This led Leonid Krivitsky and colleagues at the A*STAR Data Storage Institute to develop a method in which a laser beam was converted into two linked lower energy beams: The link between the two beams allowed experiments using one beam at infrared wavelengths to be detected in the second beam, at visible wavelengths.
"It's a very simple setup, uses simple components, and is very compact, and we've hit a resolution comparable with conventional infrared systems," Krivitsky said.
Read more.
New microscope chemically identifies micron-sized particles
Researchers have developed a microscope that can chemically identify individual micron-sized particles. The new approach could one day be used in airports or other high-security venues as a highly sensitive and low-cost way to rapidly screen people for microscopic amounts of potentially dangerous materials.
In the journal Optics Letters, from The Optical Society (OSA), researchers from the Massachusetts Institute of Technology's Lincoln Laboratory, USA, demonstrated their new microscope by measuring infrared spectra of individual 3-micron spheres made of silica or acrylic. The new technique uses a simple optical setup consisting of compact components that will allow the instrument to be miniaturized into a portable device about the size of a shoebox.
"The most important advantage of our new technique is its highly sensitive, yet remarkably simple design," said Ryan Sullenberger, associate staff at MIT Lincoln Labs and first author of the paper. "It provides new opportunities for nondestructive chemical analysis while paving the way towards ultra-sensitive and more compact instrumentation."
Read more.
🌌✨ Webb’s eye captures a primitive cosmos: a newly identified dwarf galaxy with almost no heavy elements, offering a rare look into early chemical evolution of the universe 🌠🧪 📡🔭 This distant system, named CAPERS-39810, was found at redshift ~3.654 using JWST’s infrared spectrograph; its extremely low metallicity suggests it resembles early-stage galaxies shortly after cosmic noon 🪐📈
Signals for both C-H stretching in vinylic C=C-H and C=C stretching can be seen in the infrared spectrum of cyclopentene (figure 20.11).
"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.
Clues to Whether a Planet Has Life.
Short of going there, there is no way we could see life on another planet: space is too big. But would we want to go (assuming we could) without knowing something about it? Could there be a technological civilization there? There almost certainly would be if we detected sulphur hexafluoride in an alien atmosphere because that gas cannot arise naturally. The same principle operates for detecting…
View On WordPress
Infrared spectroscopy also called IR spectroscopy or vibrational spectroscopy is the analysis of infrared light that interacts with matter. An infrared spectrometer is an instrument based on absorption in the infrared region due to changes in vibrational energy. The instrumentation of infrared spectrometers resembles UV-visible spectrometers in many respects and essential components of IR and UV-visible spectroscopy are similar but sources, detectors, and optical components are somewhat different from IR spectrometers for more information about infrared spectroscopy
Infrared Spectroscopy Devices Market Global Trends, Size, Segments and Growth by Forecast to 2027
