Japanese Journal of Applied Physics

Real-Time Measurement of the Population Densities in Gd Atomic Vapor Using Diode Laser Absorption Spectroscopy at 394.554 nm

Euo Chang Jung, Kwang-Hoon Ko, Taek-Soo Kim, Duck-Hee Kwon

Published Feb 10, 2004• 3 citations

Abstract

The absorption spectra of two transitions originating from 0 and 999 cm -1 for atomic Gd were investigated at 394.554 nm. Newly measured transition probabilities are reported. Because of a narrow spectral difference of approximately 0.195 cm -1 between the two transitions, rapid sweeping of the diode laser wavelength made it possible to record both the absorption spectra simultaneously. The adopted technique enabled the real-time monitoring of the fraction of the Gd vapor at the ground energy level.

DOI: 10.1143/jjap.43.822

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