Infrared spectroscopy articles from across Nature Portfolio Infrared spectroscopy (IR spectroscopy) is an optical technique that detects molecular bond vibrations and rotations upon absorption of ...

The identification of the chemical composition of painting materials and their macroscale distribution is crucial for effective conservation, knowledge, and enhancement of our irreplaceable cultural ...

Local contrast methods are efficient approaches for infrared (IR) small target detection. However, since its baseline is obtained locally, a local contrast method can work well only when the target is ...

This study introduces a photoacoustic spectroscopy (PAS) gas sensor based on an all-in-one nonresonant photoacoustic cell. A finite element model (FEM) of the sensor taking into account both ...