High-resolution simultaneous probing of site-specific N 2 O-isotopologues at 7.8 µm using cavity ring-down spectroscopy

Key Points

• This research aims to analyze site-specific N2O isotopologues utilizing a novel mid-IR window.
• Employed QCL-coupled cavity ring-down spectroscopy
• Focused on N2O isotopologues 14N15N16O and 15N14N16O
• Identified laser scan at 0.065 cm−1
• Successfully identified a new mid-IR window at 7.8 µm for N2O isotopologues
• Demonstrated high-resolution measurement capabilities
• Facilitated simultaneous probing of the isotopologues.