Linear scalability of dense-pattern Herriott-type multipass cell design

authored by

Junjun Wu, Tobias Grabe, Jan-Luca Götz, Joshua Trapp, Aureo Serrano de Souza, Tobias Biermann, Alexander Wolf, Peer-Phillip Ley, Kun Duan, Roland Lachmayer, Wei Ren

Abstract

Multipass cells (MPC) have been widely used for high-sensitivity spectroscopic measurements. We report the linear scalability in the configuration design of an MPC, which is derived from ray transfer equations in the non-paraxial approximation. As a proof of principle, twelve sets of Herriot-type cells ranging from 4.6 × 4.6 × 12.3 to 57.1 × 57.1 × 147.7 mm

³ were investigated with their beam patterns and optical path lengths modeled. By taking the non-intersecting seven-circle beam pattern as a typical example, the designated beam patterns were successfully reproduced by modeling and the optical path length scales linearly with the cell size. Two sets of MPCs were also fabricated by additive manufacturing to further justify the rationale of linear scalability. Possible effects of beam spot size and the signal-to-noise ratio on the miniaturization and escalation of MPCs were discussed. This work contributes to a new insight into the cell configuration and will be useful for accelerating the cell design at various scales.

Organisation(s)

Institute of Motion Engineering and Mechanism Design
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Hannover Centre for Optical Technologies (HOT)

External Organisation(s)

Chongqing University
The Chinese University of Hong Kong
GROTESK – Additive Manufacturing of Optical, Thermal and Structural Components
LaSense Technology Limited, New Territories, Hong Kong SAR

Type

Article

Journal

Applied Physics B: Lasers and Optics

Volume

129

ISSN

0946-2171

Publication date

09.05.2023

Publication status

Published

Electronic version(s)

https://doi.org/10.1007/s00340-023-08031-w (Access: Closed)