| Autor: |
Dubinsky, I., Rybak, K., Steinfeld, J.I., Field, R.W. |
| Předmět: |
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| Zdroj: |
Applied Physics B: Lasers & Optics; 1998, Vol. 67 Issue 4, p481, 12p |
| Abstrakt: |
Abstract. A highly sensitive pulse amplified frequency modulation based spectroscopic technique for remote sensing applications (FMRS) has been developed. We demonstrate that scattered light returned to a photodetector from distributed scattering centers permits the basic heterodyne detection process to be carried out. The FM photocurrent expected from scattering by an aerosol or cloud is sufficient for detection of atmospheric species over ranges of up to 2 km at levels of 10[sup 6] to 10[sup 12] molecules cm[sup -3]. FMRS has the potential of being a general method for monitoring atmospheric trace gases at ambient levels. PACS: 42.68.-w; 82.80.Ch [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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