Experimental and theoretical investigation of photoacoustic-signal generation by wavelength-modulated diode lasers

A. Miklós, Z. Bozóki, Y. Jiang, M. Fehér

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The dependence of photoacoustic spectra on different experimental parameters was investigated by both theoretical and experimental means. The experiments were carried out with an inexpensive resonant optoacoustic system based on near-infrared laser diodes, which allowed photoacoustic and direct absorption spectra to be recorded simultaneously. The experimental observations were compared to theoretical predictions. It was also demonstrated that source-frequency (wavelength) modulation at the resonance frequency of the cell provides superior signal to noise ratio compared to amplitude modulation and eliminates background drifts and fluctuations.

Original languageEnglish
Pages (from-to)483-492
Number of pages10
JournalApplied Physics B Laser and Optics
Volume58
Issue number6
DOIs
Publication statusPublished - Jun 1 1994

Keywords

  • 43.20.Ye
  • 43.25.Ud

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Experimental and theoretical investigation of photoacoustic-signal generation by wavelength-modulated diode lasers'. Together they form a unique fingerprint.

  • Cite this