Optical pathlength and trajectory stability in rotationally asymmetric multipass cells

Emphasis is placed on generating long optical path lengths and global focus times. A trajectory with an optical path length of 18 m is generated within a 68 cm³ volume.

This path length to volume ratio (26.9 cm-²) is large compared to current state of the art multipass cells such as the cylindrical multipass cell (6.6 cm-²) and astigmatic Herriott cell (9 cm-²). This work simplifies the process of designing RACs with long optical path lengths and could lead to broader implementation of these multipass cells.