A new micron-level spectroscopy technique uses optical filters near infrared to detect the chemical composition of particles based on how they respond to being heated. Shining an infrared laser on tiny particles causes them to heat up due to absorption of the light, although this does not have any lasting effects, allowing it to be […]
The ZEUS-2 spectrometer is able to address up to four telluric windows simultaneously by placing optical bandpass filters directly over its detector, a capability that forms the core of a scientific poster exhibited by the American Astronomical Society in January 2017. A team from Cornell University assisted by Patrick Dahlin of the University of Michigan […]