Measurement of collisional multiphoton energy deposition by a new optothermal detector

Autor: Bao Yi-han, Li Changlin, Mu Guorong
Rok vydání: 1984
Předmět:
Zdroj: Optics Communications. 51:25-28
ISSN: 0030-4018
DOI: 10.1016/0030-4018(84)90276-1
Popis: The infrared multiphoton absorption of SF 6 under collisional condition has been measured by a new optothermal detector which is based on measuring the change of resistance of a platinum filament. The optothermal signal, i.e., the absorbance of CO 2 laser energy by SF 6 , was enhanced by the addition of Ar or NH 3 . But the increase of optothermal signal caused by adding NH 3 is much greater than that caused by adding Ar, mainly due to the energy siphoning from excited SF 6 molecules to NH 3 molecules.
Databáze: OpenAIRE