Photoacoustic spectroscopy of NO${}_2$ using a mid-infrared pulsed optical parametric oscillator as light source

Mikael Lassen, Laurent Lamard, David Balslev-Harder +2

A photoacoustic (PA) sensor for spectroscopic measurements of NO${}_2$-N${}_2$ at ambient pressure and temperature is demonstrated. The PA sensor is pumped resonantly by a nanosecond p…