Electromagnetic radiation detection using cantilever-based photoacoustic effect

Autor: Erkki Ikonen, Jussi Rossi, Juho Uotila, Markku Vainio, Farshid Manoocheri, Toni Laurila, Sucheta Sharma

Publikováno v: Sharma, S, Laurila, T, Rossi, J, Uotila, J, Vainio, M, Manoocheri, F & Ikonen, E 2022, ' Electromagnetic radiation detection using cantilever-based photoacoustic effect : A method for realizing power detectors with broad spectral sensitivity and large dynamic range ', Sensors and Actuators A: Physical, vol. 337, 113191 . https://doi.org/10.1016/j.sna.2021.113191

Lisää oa-julkaisu, kun saatavilla. A sensitive photoacoustic detection approach employing a silicon cantilever is investigated for power measurement of electromagnetic radiation. The technique which is actuated by pressure waves generated through r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eff49468f0af4a50a59cf4627916552b
https://doi.org/10.1016/j.sna.2021.113191

Sub-ppb detection of formaldehyde with cantilever enhanced photoacoustic spectroscopy using quantum cascade laser source

Autor: Juho Uotila, Jaakko Lehtinen, Christian Bernd Hirschmann, Satu Ojala, Riitta L. Keiski

Publikováno v: Hirschmann, C, Lehtinen, J, Uotila, J, Ojala, S & Keiski, R L 2013, ' Sub-ppb detection of formaldehyde with cantilever enhanced photoacoustic spectroscopy using quantum cascade laser source ', Applied Physics B: Lasers and Optics, vol. 111, no. 4, pp. 603-610 . https://doi.org/10.1007/s00340-013-5379-4

A novel cantilever enhanced photoacoustic spectrometer with mid-infrared quantum cascade laser was applied for selective and sensitive formaldehyde (CH2O) gas measurement. The spectrum of formaldehyde was measured from 1,772 to 1,777 cm−1 by tuning

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4569b691937730e6d9b0db86c849608c
https://doi.org/10.1007/s00340-013-5379-4

Fourier Transform Infrared Photoacoustic Multicomponent Gas Spectroscopy with Optical Cantilever Detection

Autor: Satu Ojala, Christian Bernd Hirschmann, Juho Uotila, Jussi Tenhunen, Riitta L. Keiski

Publikováno v: Hirschmann, C, Uotila, J, Ojala, S, Tenhunen, J & Keiski, R L 2010, ' Fourier transform infrared photoacoustic multicomponent gas spectroscopy with optical cantilever detection ', Applied Spectroscopy, vol. 64, no. 3, pp. 293-297 . https://doi.org/10.1366/000370210790918490

The sensitivity of photoacoustic spectroscopy was improved with the invention of optical cantilever detection (PAS-OCD). However, the ability of present PAS-OCD devices to carry out multicomponent detection is poor. To overcome this, a Fourier transf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb14e0794ac78c43c642745a84659ea5
https://doi.org/10.1366/000370210790918490

Comparison of infrared sources for a differential photoacoustic gas detection system

Autor: Juho Uotila

Publikováno v: Infrared Physics & Technology. 51:122-130

A prototype of the differential photoacoustic measurement system with an optical cantilever microphone has been developed. The system is based on gas filter correlation method. The proposed system allows real-time measurement of various IR-absorbing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c976b5ddb5879b8d52551626bb64b5ea
https://doi.org/10.1016/j.infrared.2007.05.001

Simulation of an experimental database of infrared spectra of complex gaseous mixtures for detecting specific substances. The case of drug precursors

Autor: Renato Seeber, Alessandro Ulrici, Sauli Sinisalo, Marco Calderisi, Juho Uotila

This work is motivated by the need to develop suitable databases in absence of real experimental data, for instance when spectra measured with a newly developed instrumentation on real samples are not available yet. This notwithstanding, in fact, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e905d40b1f3c1048192db437b58f69f
https://hdl.handle.net/11380/994513