Differential Thermal Lensing in Extended Samples

A. Marcano O; J. Hung; L. Rodríguez; L. Borrero

doi:10.1366/000370203769699162

Differential Thermal Lensing in Extended Samples

A. Marcano O, J. Hung, L. Rodríguez, L. Borrero

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Resumen

We present a new scheme for a pump-probe mode-mismatched thermal lensing experiment aimed at extracting the value of low-absorbing components in the presence of a high-absorbing background. The method allows for the use of large path-length samples. Changes in the background absorption of a column of ethanol of 20 cm of 1 % and a pollutant concentration detection limit of 0.04 ppm are obtained when using a pump light power of 34 mW.

Idioma original	Inglés
Páginas (desde-hasta)	1278-1281
Número de páginas	4
Publicación	Applied Spectroscopy
Volumen	57
N.º	10
DOI	https://doi.org/10.1366/000370203769699162
Estado	Publicada - oct. 2003
Publicado de forma externa	Sí

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abstract = "We present a new scheme for a pump-probe mode-mismatched thermal lensing experiment aimed at extracting the value of low-absorbing components in the presence of a high-absorbing background. The method allows for the use of large path-length samples. Changes in the background absorption of a column of ethanol of 20 cm of 1 % and a pollutant concentration detection limit of 0.04 ppm are obtained when using a pump light power of 34 mW.",

keywords = "Absorption, Thermal lens, Z-scan",

author = "{Marcano O}, A. and J. Hung and L. Rodr{\'i}guez and L. Borrero",

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AB - We present a new scheme for a pump-probe mode-mismatched thermal lensing experiment aimed at extracting the value of low-absorbing components in the presence of a high-absorbing background. The method allows for the use of large path-length samples. Changes in the background absorption of a column of ethanol of 20 cm of 1 % and a pollutant concentration detection limit of 0.04 ppm are obtained when using a pump light power of 34 mW.

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KW - Thermal lens

KW - Z-scan

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Differential Thermal Lensing in Extended Samples

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