Search Results - "Uotila, Juho"
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Photoacoustic characteristics of carbon-based infrared absorbers
Published in Photoacoustics (Munich) (01-09-2021)“…We present an experimental comparison of photoacoustic responsivities of common highly absorbing carbon-based materials. The comparison was carried out with…”
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Electromagnetic radiation detection using cantilever-based photoacoustic effect: A method for realizing power detectors with broad spectral sensitivity and large dynamic range
Published in Sensors and actuators. A. Physical. (16-04-2022)“…•This paper presents a detector of electromagnetic radiation power using cantilever-based photoacoustic effect.•A numerical model has been developed to…”
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Comparison of infrared sources for a differential photoacoustic gas detection system
Published in Infrared physics & technology (01-10-2007)“…A prototype of the differential photoacoustic measurement system with an optical cantilever microphone has been developed. The system is based on gas filter…”
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Fourier Transform Infrared Measurement of Solid-, Liquid-, and Gas-Phase Samples with a Single Photoacoustic Cell
Published in Applied spectroscopy (01-06-2008)“…A photoacoustic detector based on the optical cantilever microphone has been built. The detector is capable of measuring solid-, liquid-, and gas-phase…”
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5
High sensitivity trace gas detection by cantilever-enhanced photoacoustic spectroscopy using a mid-infrared continuous-wave optical parametric oscillator
Published in Optics express (22-04-2013)“…Highly sensitive cantilever-enhanced photoacoustic detection of hydrogen cyanide and methane in the mid-infrared region is demonstrated. A mid-infrared…”
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Simulation of an experimental database of infrared spectra of complex gaseous mixtures for detecting specific substances. The case of drug precursors
Published in Sensors and actuators. B, Chemical (01-03-2014)“…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…”
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Fourier Transform Infrared Photoacoustic Multicomponent Gas Spectroscopy with Optical Cantilever Detection
Published in Applied spectroscopy (01-03-2010)“…The sensitivity of photoacoustic spectroscopy was improved with the invention of optical cantilever detection (PAS-OCD). However, the ability of present…”
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A new design of the differential photoacoustic gas detector combined with a cantilever microphone
Published in The European physical journal. ST, Special topics (2008)“… A new prototype of a portable differential photoacoustic measurement system was designed and built. The system applies the gas filter correlation method. A…”
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Journal Article Conference Proceeding -
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Broadband Electromagnetic Radiation Detector Based on Photoacoustic Effect
Published in 2020 Conference on Lasers and Electro-Optics (CLEO) (01-05-2020)“…We report a highly linear and sensitive power detector, which is based on a silicon-cantilever enhanced photoacoustic sensor. Broadband operation from visible…”
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Conference Proceeding -
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Electromagnetic Radiation Detection with Broad Spectral Sensitivity and Large Dynamic Range using Cantilever-based Photoacoustic Effect
Published 06-01-2021“…A sensitive photoacoustic detection approach employing a silicon cantilever is investigated for power measurement of electromagnetic radiation. The technique…”
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Photoacoustic characteristics of carbon-based infrared absorbers
Published 24-11-2020“…We present an experimental comparison of photoacoustic responsivities of common highly absorbing carbon-based materials. The comparison was carried out with…”
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Journal Article -
12
Optical power detector with broad spectral coverage, high detectivity and large dynamic range
Published 14-04-2021“…Optical power measurements are needed in practically all technologies based on light. Here we report a general-purpose optical power detector based on the…”
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