Searched for: subject:"mid%5C-infrared"
(1 - 4 of 4)
document
Ayerden, N.P. (author), Mandon, Julien (author), Harren, Frans J.M. (author), Wolfenbuttel, R.F. (author)
Increasing demand for field instruments designed to measure gas composition has strongly promoted the development of robust, miniaturized and low-cost handheld absorption spectrometers in the mid-infrared. Efforts thus far have focused on miniaturizing individual components. However, the optical absorption path that the light beam travels...
journal article 2017
document
Ghaderi, M. (author), Karimishahmarvandi, E. (author), Ayerden, N.P. (author), Wolfenbuttel, R.F. (author)
Metamaterial absorbers are photonic structures composed of an array of sub-wavelength metallic patterns. Results in literature are usually based on structures of nominal dimensions, despite the significant effect of fabrication tolerances on performance. This research aims to identify the main sources of uncertainty and to investigate their...
conference paper 2017
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Karimi Shahmarvandi, Ehsan (author), Ghaderi, M. (author), Ayerden, N.P. (author), de Graaf, G. (author), Wolffenbuttel, R.F. (author)
The design of a metamaterial-based absorber for use in a mid-IR microspectrometer-based gas sensor is reported.The microspectrometer consists of a linear variable optical filter (LVOF) that is aligned with an array of thermopiledetectors, which is fabricated on a SiN membrane and covered with the absorber. Special emphasis was put on theCMOS...
journal article 2016
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Legrand, S. (author), Vanmeert, F. (author), Van der Snickt, G. (author), Alfeld, M. (author), De Nolf, W. (author), Dik, J. (author), Janssens, K. (author)
The development of advanced methods for non-destructive selective imaging of painted works of art at the macroscopic level based on radiation in the X-ray and infrared range of the electromagnetic spectrum are concisely reviewed. Such methods allow to either record depth-selective, element-selective or species-selective images of entire...
journal article 2014
Searched for: subject:"mid%5C-infrared"
(1 - 4 of 4)