The absorption of pulsed C02 laser radiation by methylphosphine as a function of wavenumber, fluence, pulse duration, temperature, optical path length and pressure of absorbing and non-absorbing gases
✍ Scribed by J. Rak; J. Blazejowski; F.W. Lampe
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 796 KB
- Volume
- 90
- Category
- Article
- ISSN
- 1010-6030
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✦ Synopsis
The absorption of four lines (P12 (951.2 cm-') and R22 (977.2 cm-') (OO"l-lo"0 transition) and P36 (1031.5 cm-') and R20 (1078.6 <.rn-') (OO"l-02"O transition)) of a pulsed CO2 laser by CH,PH* was examined at various pulse energies, pulse durations, temperatures, ,tptical path lengths and pressures of the compound and non-absorbing foreign gases. In addition, the low intensity IR absorption spectrum of / nethylphosphine was compared with high intensity absorption data relevant to all lines of the pulsed COz laser. The experimental characteristics 'Jemonstrate non-linear features of the absorption phenomena and can be expressed analytically by a formula equivalent to an extended form
If the phenomenological Beer-Lambert law. The importance of the results obtained for revealing general regularities governing the multiphoton bsorption and the potential applications of CH,PH2 are indicated briefly.