Instrumentación

 

Optical properties of paper at 337.1nm

 

J. de la Rosa and F.J. Bautista

 

ESIME, Instituto Politécnico Nacional, 07738 México, D.F.

 

Recibido el 24 de mayo de 2004;
aceptado el 20 de septiembre de 2004

 

Abstract

Here, we are reporting on the 337.1 nm radiation scattering and fluorescence spectra for white and colored bond paper (100 μm thick) using an N₂ laser of 1 μJ pulse energy (t_FWHM =3.8 ns). Fluorescence lifetimes in the order of 10 ns and transit-times in the order of 1 ns were obtained. No fluorescence changes were caused by the short term paper irradiation.

Keywords: Laser; fluorescence; paper.

 

Resumen

En este trabajo se reporta sobre la dispersión de radiación de 337.1 nm y los espectros de fluorescencia de papel bond blanco y de color (100 μm de espesor) usando un láser de N₂ que emite pulsos de 1 μJ de energía (t_FWHM = 3.8 ns). Se midieron tiempos de vida de fluorescencia en el orden de 10 ns y tiempos de transito alrededor de 1 ns. No se manifestaron cambios en la fluorescencia como consecuencia de la radiación aplicada.

Descriptores: Láser; fluorescencia; papel.

 

PACS: 87.64; 32.50.+d

 

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