Cavity-enhanced absorption spectroscopy of the 1.5 μm band system of jet-cooled 
ammonia

Berden, Giel; Peeters, Rudy; Meijer, Gerard

doi:10.1016/S0009-2614(99)00504-7

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Cavity-enhanced absorption spectroscopy of the 1.5 μm band system of jet-cooled ammonia

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Citation

Berden, G., Peeters, R., & Meijer, G. (1999). Cavity-enhanced absorption spectroscopy of the 1.5 μm band system of jet-cooled ammonia. Chemical Physics Letters, 307(3-4), 131-138. doi:10.1016/S0009-2614(99)00504-7.

Cite as: https://hdl.handle.net/21.11116/0000-000B-65F1-3

Abstract

Absorption spectra of rotationally cold ammonia (¹⁴NH₃) molecules have been recorded in the 6400–6630 cm⁻¹ region, using the cavity-enhanced absorption technique in combination with a slit-nozzle expansion. Two perpendicular rovibrational bands have been identified: the ν₁+ν₃ band at 6609 cm⁻¹, and a `new' band at 6557 cm⁻¹ which is tentatively assigned to a transition into the |l|=2 component of the ν₁+2ν₄ state.