Two‐ and three‐photon resonances in the four‐photon ionization spectrum of nitric oxide at low temperature

1978 ◽  
Vol 68 (8) ◽  
pp. 3644-3653 ◽  
Author(s):  
David Zakheim ◽  
Philip Johnson
2014 ◽  
Vol 37 (12) ◽  
pp. 2623-2630 ◽  
Author(s):  
JULIETTE PUYAUBERT ◽  
EMMANUEL BAUDOUIN

2017 ◽  
Vol 3 (3) ◽  
pp. 157
Author(s):  
M. Furutani ◽  
Y. Ohta ◽  
M. Nose

<p>Flat low-temperature two-stage flames were established on a Powling burner using rich diethyl-ether/ air or n-heptane/air mixtures, and nitrogen monoxide NO was added into the fuel-air mixtures with a concentration of 240 ppm. The temperature development and chemical-species histories, especially of NO, nitrogen dioxide NO<sub>2</sub> and hydrogen cyanide HCN were examined associated with an emission-spectrum measurement from the low-temperature flames. Nitrogen monoxide was consumed in the cool-flame region, where NO was converted to the NO<sub>2</sub>. The NO<sub>2</sub> generated, however, fell suddenly in the cool-flame degenerate region, in which the HCN superseded. In the blue-flame region the NO came out again and developed accompanied with remained HCN in the post blue-flame region. The NO seeding into the mixture intensified the blue-flame luminescence probably due to the cyanide increase.</p>


1997 ◽  
Vol 17 (1) ◽  
pp. 19-28 ◽  
Author(s):  
Keiji Nakashima ◽  
Hirofumi Soga ◽  
Teiichiro Ogawa

The photoionization process of pyrene in non-polar solvent has been investigated using a two-color two-photon ionization technique. The ionization spectrum near threshold of pyrene in n-hexane was measured by a delayed irradiation of a dye laser 20 ns after an N2 laser at total excitation energies of 5.9–6.22 eV. The two-photon ionization threshold of pyrene was in the vicinity of 5.9 eV which is larger by 0.7 eV than that expected from the onset of one-photon ionization. The ionization spectrum shows maxima at 5.92 and 5.99 eV which may be assigned to an autoionization process.


1982 ◽  
Author(s):  
Magnus Lenner ◽  
Oliver Lindqvist ◽  
Evert Ljungström ◽  
Inger Lundgren ◽  
Åke Rosén

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