New energy levels of atomic niobium by laser induced fluorescence spectroscopy in the near infrared


Ozturk I. K., Basar G., ER A., GUZELCIMEN F., Basar G., KROGER S.

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol.48, no.1, 2015 (SCI-Expanded) identifier identifier

Abstract

Laser-induced fluorescence spectroscopy was applied in order to find new energy levels of the niobium atom. A continuous wave tuneable titanium-sapphire laser in the wavelength range from 750 to 865 nm and a hollow-cathode lamp were used. We discovered four energy levels of even parity, three lying levels below 19 000 cm(-1) and one at much higher energy. Additionally hyperfine structure data of six levels of odd parity were determined.