Measuring Atmospheric Gases
INESC Porto?s Optoelectronics and Electronic System Unit (Porto, Portugal) in partnership with the European Space Agency, has developed a technology that enables a more effective measurement of gases in the atmosphere than that achieved with current techniques (such as atmospheric balloons and specially equipped airplanes).
INESC Porto’s Optoelectronics and Electronic System Unit (Porto, Portugal) in partnership with the European Space Agency, has developed a technology that enables a more effective measurement of gases in the atmosphere than that achieved with current techniques (such as atmospheric balloons and specially equipped airplanes). The system consists of an ultra-narrow spectral tunable and heat-reflecting filter based on optical fiber technology that can be used to monitor the atmosphere with the reflection of laser impulses. If it is applied to satellites, this filter will be able to detect pollutant gases in the Earth’s atmosphere in concentrations less than 1 km high and 50 km wide, at an altitude of 400 km. This technology is capable of providing precise measurements of several greenhouse gases including carbon dioxide, methane, nitrous oxide, and ozone.
The Big Review III: Molecular Vibration Theory
January 2nd 2025It has occurred to me that, in the 10+ years I have been writing about molecular vibrations, I have never introduced my readers to its basic theory! I will rectify that now. Some of this is new material, and some will be review. Either way, it is important that all this material be covered in one place.
Raman Microscopy for Characterizing Defects in SiC
January 2nd 2025Because there is a different Raman signature for each of the polymorphs as well as the contaminants, Raman microscopy is an ideal tool for analyzing the structure of these materials as well as identifying possible contaminants that would also interfere with performance.
ICP-MS Highlights: A Spectroscopy Year in Review
December 28th 2024Reflecting on 2024, the editors of Spectroscopy highlight some of the most notable articles and online content on inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled-optical emission spectroscopy (ICP-OES).
