Answers are grounded in this paper and cite their sources.
A multipass cell for absorption measurements with laser light is described. The number of passes is adjusted by variation of the distance of two parallel concave mirrors. The position and direction of the exit beam do not change when the path length is varied. A cell of 1-m length was used for infrared absorption measurements with an effective path length between 3 and 150 m.
No takes yet. Share an insight, caveat, or question.
Altmann et al. (1981) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: