Effect of pressure and pulse length on the isotopically selective photodissociation of freon CF2Cl2 under CO2 laser pulses

M. Neve De Mevergnies

doi:10.1063/1.90691

Effect of pressure and pulse length on the isotopically selective photodissociation of freon CF₂Cl₂ under CO₂ laser pulses

M. Neve De Mevergnies

Research output › peer-review

Abstract

When the ¹³C species of CF₂Cl₂ is excited by short TEA-CO₂ laser pulses, the isotopic enrichment of the resultant photodissociation remains constant between 0.25 and 2 Torr CF ₂Cl₂ pressure, whereas excitation of the ¹²C species yields a monotonous decrease of the enrichment with pressure in the same range. These results are compared to those obtained with longer pulses and with the ³²S and ³⁴S species of SF₆.

Original language	English
Pages (from-to)	853-854
Number of pages	2
Journal	Applied Physics Letters
Volume	34
Issue number	12
DOIs	https://doi.org/10.1063/1.90691
State	Published - 1979

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.90691

Cite this

@article{73efc6a05f9f4b45b3be36be81abec82,

title = "Effect of pressure and pulse length on the isotopically selective photodissociation of freon CF2Cl2 under CO2 laser pulses",

abstract = "When the 13C species of CF2Cl2 is excited by short TEA-CO2 laser pulses, the isotopic enrichment of the resultant photodissociation remains constant between 0.25 and 2 Torr CF 2Cl2 pressure, whereas excitation of the 12C species yields a monotonous decrease of the enrichment with pressure in the same range. These results are compared to those obtained with longer pulses and with the 32S and 34S species of SF6.",

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year = "1979",

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journal = "Applied Physics Letters",

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T1 - Effect of pressure and pulse length on the isotopically selective photodissociation of freon CF2Cl2 under CO2 laser pulses

AU - Neve De Mevergnies, M.

PY - 1979

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N2 - When the 13C species of CF2Cl2 is excited by short TEA-CO2 laser pulses, the isotopic enrichment of the resultant photodissociation remains constant between 0.25 and 2 Torr CF 2Cl2 pressure, whereas excitation of the 12C species yields a monotonous decrease of the enrichment with pressure in the same range. These results are compared to those obtained with longer pulses and with the 32S and 34S species of SF6.

AB - When the 13C species of CF2Cl2 is excited by short TEA-CO2 laser pulses, the isotopic enrichment of the resultant photodissociation remains constant between 0.25 and 2 Torr CF 2Cl2 pressure, whereas excitation of the 12C species yields a monotonous decrease of the enrichment with pressure in the same range. These results are compared to those obtained with longer pulses and with the 32S and 34S species of SF6.

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DO - 10.1063/1.90691

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SN - 0003-6951

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SP - 853

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JO - Applied Physics Letters

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