Phase-controlled Fourier-transform Infrared Spectroscopy with Cantilever-enhanced Photoacoustic Detection

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Sammanfattning

Cantilever-enhanced photoacoustic spectroscopy (CEPAS) is an extremely sensitive spectroscopic technique and capable of broadband measurements [1]. For example, it has been combined with Fourier-transform infrared spectroscopy (FTIR), where the power of each frequency component in the optical spectrum is modulated at a unique radio or acoustic frequency [2]. The power modulations are transformed into pressure waves by absorption inside the sample cell and detected by the sensitive silicon-cantilever microphone of the CEPAS detector. Due to the sensitivity of CEPAS, the detection bandwidth is limited to low acoustic frequencies (< 1 kHz) leading to the necessity of slow interferometer scans and long measurement times.

Originalspråkengelska
Titel på värdpublikation2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
FörlagInstitute of Electrical and Electronics Engineers Inc.
Utgivningsdatum2023
ISBN (elektroniskt)9798350345995
DOI
StatusPublicerad - 2023
MoE-publikationstypA4 Artikel i en konferenspublikation
Evenemang2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 - Munich, Tyskland
Varaktighet: 26 juni 202330 juni 2023

Publikationsserier

Namn2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023

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© 2023 IEEE.

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