Title :
Rydberg series of Hf atoms by resonance ionization spectroscopy
Author :
Hasegawa, S. ; Tanji, S. ; Kurosawa, Hiroyuki ; Suzuki, A.
Author_Institution :
Dept. of Quantum Eng. & Syst. Sci., Tokyo Univ., Japan
Abstract :
Summary form only given. The ground state of hafnium is 5d/sup 2/6s/sup 2/ /sup 3/F/sub 2/ and that of Hf II is 5d6s/sup 2/ /sup 2/D/sub 3/2/. This indicates that the electronic configuration of the excited states cannot be described with two-electron system. Resonance ionization spectroscopy has the advantage of the capability to investigate highly excited states through the specific intermediate state. C.L. Callendar et al. (1988) observed Rydberg series converging to the excited states of Hf II and determined the first ionization potential of Hf as 55047.9 cm/sup -1/. Because of the electronic configuration, the series converging to the first ionization limit were not expected. We report that we performed two color resonance ionization spectroscopy of Hf atoms and the Rydberg series converging to the ground state of Hf II were identified.
Keywords :
Rydberg states; hafnium; ionisation potential; photoionisation; two-photon spectra; Hf; Hf II atoms; Rydberg series; effective quantum number; excited states; ground state; ionization potential; resonance ionization spectroscopy; two color resonance ionization; Atom lasers; Atomic beams; Gas lasers; Hafnium; Ionization; Laser beams; Laser transitions; Optical pulses; Resonance; Spectroscopy;
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
DOI :
10.1109/IQEC.2000.907914
