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http://repositoriodigital.ipn.mx/handle/123456789/11583
Título : | An alternative differential method of femtosecond pump-probe examination of materials |
Palabras clave : | FENTOSECONDS LASER |
Fecha de publicación : | 16-ene-2013 |
Editorial : | OPTICS EXPRESS |
Descripción : | We describe an alternative method for femtosecond pumpprobe
beam examination of energy transport properties of materials. All
already reported techniques have several drawbacks which limit precise
measurements of reflection coefficient as function of time. A typical
problem is present when rough samples are being studied. In this case the
pump-beam polarization changes randomly which may produce a spurious
signal, drastically reducing the signal to noise ratio. Some proposals to
alleviate such problem have been reported, however, they have not been
totally satisfactory. The method presented here consists on measuring the
difference between the two delays’ signals of the probe-beam. As will be
explained, our proposal is free of typical drawbacks. We also propose a
numerical method to recover the DR(t)/R curve from the measured data.
Numerical simulations show that our proposal is a viable alternative. INSTITUTO POLITECNICO NACIONAL, CONACYT |
URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/11583 |
Otros identificadores : | http://hdl.handle.net/123456789/1120 |
Aparece en las colecciones: | Doctorado |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
OE_Marin_2011.pdf | 849.24 kB | Adobe PDF | Visualizar/Abrir |
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