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Laser combover: Calibrating exoplanets

Date: Feb 1, 2016

Author: David Bradley

Optical rulers, more correctly known as laser frequency combs, could be used to calibrate the infra-red spectra recorded by astronomers hunting for Earth-like exoplanets. The combs facilitate precision measurements that can reveal the gravitational pull of planets orbiting distant stars.

Read More thumbnail image: Laser combover Calibrating exoplanets

Journal Highlight: FTIR, XRD and SEM analysis of ginger powders with different size

Date: Jan 15, 2016

Author: spectroscopyNOW

The effects of grinding treatment on the chemical properties of ginger powder were studied using FTIR spectroscopy, X-ray diffraction and SEM.

Read More thumbnail image: Journal Highlight FTIR XRD and SEM analysis of ginger powders with different size

Geometric resonator: Tuning the infrared

Date: Jan 7, 2016

Author: David Bradley

Meta material resonators that allow emission in the infrared to be tuned through changes in the geometry of the resonator have been demonstrated by scientists in France.

Read More thumbnail image: Geometric resonator Tuning the infrared

Journal Highlight: Estimating the modal mineralogy of eucrite and diogenite meteorites using visible–near infrared reflectance spectroscopy

Date: Dec 15, 2015

Author: spectroscopyNOW

Hapke and Shkuratov radiative transfer models were implemented to simultaneously estimate mineral abundances and particle size from VIS–NIR reflectance spectra of eucrite and olivine-bearing (harzburgitic) diogenite meteorites.

Read More thumbnail image: Journal Highlight Estimating the modal mineralogy of eucrite and diogenite meteorites using visiblenear infrared reflectance spectroscopy

Dimming star: Cometary commentary

Date: Dec 1, 2015

Author: David Bradley

Data from the Infrared Array Camera of NASA's Spitzer Space Telescope reported in Astrophysical Journal Letters suggest that fragments of a shattered comet are the explanation of the dimming of the mysterious "double" star KIC 8462852 that seemed to defy the laws of physics.

Read More thumbnail image: Dimming star Cometary commentary

Journal Highlight: Effect of gas cell pressure in FTIR analysis of fire effluents

Date: Nov 15, 2015

Author: spectroscopyNOW

The experimental and numerical evaluation of pressure effects in the FTIR analysis of fire effluent gases has been examined, including the feasibility and limitations of pressure corrections.

Read More thumbnail image: Journal Highlight Effect of gas cell pressure in FTIR analysis of fire effluents

Mars on the run: Liquid water spotted

Date: Nov 1, 2015

Author: David Bradley

NASA's Mars Reconnaissance Orbiter (MRO) has provided perhaps the strongest evidence we have so far that liquid water still flows, albeit intermittently, on the Red Planet, opening up the possibility that microbial life may one day be discovered there.

Read More thumbnail image: Mars on the run Liquid water spotted

Journal Highlight: Near-infrared spectroscopy (NIRS) predicts non-structural carbohydrate concentrations in different tissue types of a broad range of tree species

Date: Oct 15, 2015

Author: spectroscopyNOW

A general concentration calibration was developed for non-structural carbohydrates that integrates tree species and tissue types and can identify characteristic IR spectral regions associated with the molecules.

Read More thumbnail image: Journal Highlight Near-infrared spectroscopy NIRS predicts non-structural carbohydrate concentrations in different tissue types of a broad range of tree species

Invisibility cloak: Hiding the microscopic

Date: Oct 1, 2015

Author: David Bradley

A microscopic invisibility cloak based on brick-like blocks of gold nanoantennae could pave the way to a flexible device for making an object invisible in visible light.

Read More thumbnail image: Invisibility cloak Hiding the microscopic

Journal Highlight: Near-infrared spectroscopy for intracoronary detection of lipid-rich plaques to understand atherosclerotic plaque biology in man and guide clinical therapy

Date: Sep 15, 2015

Author: spectroscopyNOW

Near-infrared spectroscopy combined with intravascular ultrasound is a promising new intracoronary imaging method that is able to specifically quantify lipid accumulation measured as the lipid core burden index.

Read More thumbnail image: Journal Highlight Near-infrared spectroscopy for intracoronary detection of lipid-rich plaques to understand atherosclerotic plaque biology in man and guide clinical therapy
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