FN Archimer Export Format PT J TI Downsizing and Silicon Integration of Photoacoustic Gas Cells BT AF GLIERE, Alain BARRITAULT, Pierre BERTHELOT, Audrey CONSTANCIAS, Christophe COUTARD, Jean-Guillaume DESLOSGES, Brigitte DURRAFOURG, Laurent FEDELI, Jean-MARC GARCIA, Marine LARTIGUE, Olivier LHERMET, Hélène MARCHANT, Adrien ROUXEL, Justin SKUBICH, Jules TEULLE, Alexandre VERDOT, Thierry NICOLETTI, Sergio AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;8:1;9:1;10:1;11:1;12:1;13:1;14:1;15:1;16:1;17:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:; C1 CEA, LETI, Univ. Grenoble Alpes, F-38000 Grenoble, France C2 CEA, FRANCE IF 0.569 TC 7 UR https://archimer.ifremer.fr/doc/00600/71210/69571.pdf LA English DT Article DE ;MEMS;Photoacoustic spectroscopy;Silicon integration;Trace gas measurements AB Downsizing and compatibility with MEMS silicon foundries is an attractive path towards a large diffusion of photoacoustic trace gas sensors. As the photoacoustic signal scales inversely with the chamber volume, a trend to miniaturization has been followed by several teams. We review in this article the approach initiated several years ago in our laboratory. Three generations of components, namely a 40 mm3 3D-printed cell, a 3.7 mm3 silicon cell, and a 2.3 mm3 silicon cell with a built-in piezoresistive pressure sensor, have been designed. The models used take into account the viscous and thermal losses, which cannot be neglected for such small-sized resonators. The components have been fabricated either by additive manufacturing or microfabrication and characterized. Based on a compilation of experimental data, a similar sub-ppm limit of detection is demonstrated. All three versions of photoacoustic cells have their own domain of operation as each one has benefits and drawbacks, regarding fabrication, implementation, and ease of use. PY 2020 PD JAN SO International Journal Of Thermophysics SN 0195-928X PU Springer VL 41 IS 2 UT 000514586900004 DI 10.1007/s10765-019-2580-7 ID 71210 ER EF