Spectral dependence of the efficiency of direct optical excitation of molecular oxygen in tetrachloromethane


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The spectral dependence of the efficiency of direct optical excitation of an oxygen molecule in tetrachloromethane using cw LED sources with different wavelengths and an optical parametric oscillator with single-shot output radiation (tuning range of 415–670 nm) has been studied by recording the phosphorescence of singlet oxygen at the O2(1Δg)–O2(3Σg) transition (λ = 1270 nm). The results show that single-shot irradiation of tetrachloromethane in the short-wavelength spectral range leads to efficient quenching of singlet- oxygen phosphorescence by the products of photolytic decomposition of solvent.

Sobre autores

V. Kiselev

Vavilov State Optical Institute

Autor responsável pela correspondência
Email: Kiselev_V_M@yahoo.com
Rússia, St. Petersburg, 199034

I. Kislyakov

St. Petersburg State University of Information Technologies, Mechanics, and Optics

Email: Kiselev_V_M@yahoo.com
Rússia, St. Petersburg, 197101

I. Bagrov

Vavilov State Optical Institute

Email: Kiselev_V_M@yahoo.com
Rússia, St. Petersburg, 199034

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