| Autor: |
Spirou, G. M., Mandelis, A., Vitkin, I. A., Whelan, W. M., Spirou, G. M., Mandelis, A., Vitkin, I. A., Whelan, W. M. |
| Zdroj: |
European Physical Journal Special Topics; January 2008, Vol. 153 Issue: 1 p491-495, 5p |
| Abstrakt: |
Photoacoustic (or more precisely, photothermoacoustic) signals are generated by the absorption of photons, expressed as acoustic waves, and can be related to the incident laser fluence rate. Here a calibration procedure for frequency domain (FD) photoacoustics is presented which utilizes the relationship between photoacoustic (PA) signal amplitude and laser fluence rate. The sample is irradiated with a continuous wave laser which is amplitude modulated at varying frequencies. Applying the calibration procedure to the PA detected signals, a linear relationship is obtained between the fluence rate and the signal amplitude. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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