Excitation Density Dependence of Optical Oxygen Sensing in Poly(9,9-dioctylfluorene) Waveguides Showing Amplified Spontaneous Emission | Zendy

M. Anni | Zendy; S. Lattante | Zendy

Open Access

Excitation Density Dependence of Optical Oxygen Sensing in Poly(9,9-dioctylfluorene) Waveguides Showing Amplified Spontaneous Emission

Author(s) -

M. Anni,

S. Lattante

Publication year - 2014

Publication title -

isrn materials science

Language(s) - English

Resource type - Journals

eISSN - 2090-6099

pISSN - 2090-6080

DOI - 10.1155/2014/856716

Subject(s) - amplified spontaneous emission , excitation , quenching (fluorescence) , spontaneous emission , materials science , fluorescence , oxygen , sensitivity (control systems) , limiting , optoelectronics , chemistry , optics , physics , laser , organic chemistry , quantum mechanics , mechanical engineering , electronic engineering , engineering

Reversible oxygen induced emission quenching of both the Spontaneous Emission (SE) and the Amplified Spontaneous Emission (ASE) of poly(9,9-dioctylfluorene) waveguides is demonstrated. We show that ASE shows a stronger quenching than SE, up to about 6.2 times, but also a stronger decrease when the excitation density increases. We conclude that the fast increase of the ASE decay rate is the main process in determining the ASE detection sensitivity, limiting the potentiality of sensitivity improvement of ASE with respect to SE.

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