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

Ozturk İ., 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

  • Publication Type: Article / Article
  • Volume: 48 Issue: 1
  • Publication Date: 2015
  • Doi Number: 10.1088/0953-4075/48/1/015005
  • Journal Name: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: fine structure energy levels, laser spectroscopic techniques, hyperfine structure constants, HYPERFINE-STRUCTURE, TA-I, SPECTRUM, LINES
  • Istanbul University Affiliated: Yes

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.