Researchers from Brazil's University of Campinas and the University of California San Diego have developed a Fourier-transform Infrared spectrometer based on silicon photonics, making it small enough to use in a smartphone or drone. In an article published in Nature Communications, the team used a laser calibration method to overcome silicon's non-linear distortions, creating a chip that had a broadband spectrum with a resolution of 0.38THz. The researchers say their new device could be useful for measuring environmental conditions such as temperature, humidity, wind speed and air pressure.
Researchers from Brazil's University of Campinas and the University of California San Diego have developed a Fourier-transform Infrared spectrometer based on silicon photonics, making it small enough to use in a smartphone or drone. In an article published in Nature Communications, the team used a laser calibration method to overcome silicon's non-linear distortions, creating a chip that had a broadband spectrum with a resolution of 0.38THz. The researchers are now working on integrating a light source and photodetectors.