Software for Modeling QEPAS and ROTADE Trace Gas Sensors

On this web page, we provide Matlab code and Matlab-with-COMSOL scripts we developed to model quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors and resonant optothermoacoustic detection (ROTADE) sensors. This research was performed under the auspices and with the support of the NSF ERC MIRTHE (Mid Infra-Red Technologies for Health and the Environment).

QEPAS sensors without an additional microresonator

N. Petra, J. Zweck, A.A. Kosterev, S.E. Minkoff, and D. Thomazy, ``Theoretical analysis of a quartz-enhanced photoacoustic spectroscopy sensor'', Applied Physics B: Lasers and Optics, 94 (4) pp. 673-680, 2009.

Matlab code used to generate simulation results in the paper [zip file] Author: Noemi Petra.

For help running the code please contact John Zweck (zweck 'at' umbc 'dot' edu).

ROTADE sensors

N. Petra, J. Zweck, S.E. Minkoff, A.A. Kosterev, and J.H. Doty III, ``Modeling and design optimization of a resonant optothermoacoustic trace gas sensor'', SIAM J. Applied Mathematics, vol. 71, no. 1, pp. 309-332, 2011

Matlab scripts used to generate the simulation results in the paper together without code output. [90 MB zip file] These scripts call COMSOL Multiphysics. Author: Noemi Petra.

For help running the code please contact John Zweck (zweck 'at' umbc 'dot' edu).