Electric Field Effect in the Resonance Lines of Indium and Thallium

Measurement of the Stark-induced amplitudes of the 6P1/2→7P1/DeMille1, Budker2, Commins3 1994Phys. Rev. A142172View full textAdd to dashboardCite

“…This result is in reasonable agreement both with a previous determination[25] d, v(6P, &&~7 S,~2 ) = -96(10) kHz/(KV/cm)2 (40) and with the prediction from semiempirical theory [Eqs (7). and(9)] dvthe,~(6P,~2~7 S,~2 ) = -104(30)kHz/(kV/cm) (41) B.…”

“…98(3) mm . (25) As mentioned before, after -8 h of operation, the deposition of thallium on the field plates became thick enough to cause both quasi-dc and transient discharges between the plates. Because of this, the electric-field structure was disassembled after each run; the plates were then cleaned with dilute nitric acid and the structure reassembled for the next run.~d In one normalization procedure ("on-line normalization"), the 378-nm scans were used only to check the tuning of the 378-nm frequency.…”

Relativistic many-body calculations of the Stark-induced amplitude of the6P1∕2−7P1∕2transition in thallium

“…The result ∆ν S = -103.23(39) kHz/(kV/cm) 2 had higher accuracy by factor of 15 than earlier measurements [1,5] …”

“…The conversion factor between the ∆ν S in kHz/(kV/cm) 2 units used in Refs. [1,3,5] to polarizabilities in atomic units used in the present work is 2 × 10 −7 h/(4πǫ 0 a 3 0 ) = 8.03756, where h is the Plank constant. Our result for the 6P 1/2 − 7S 1/2 Stark shift agrees with the most accurate, 0.4%, experimental value from Ref.…”

“…As we have discussed above, we conducted more accurate calculation of the 7P 1/2 − 6D 3/2 , 7S−7P 1/2 , and 7S−7P 3/2 electric-dipole matrix elements by rescaling the single valence excitation coefficients with the correct value of the correlation energy leading to more accurate evaluation of the dominant contributions to 7S experimental results from Refs. [1,3,5]. The conversion factor between the ∆ν S in kHz/(kV/cm) 2 units used in Refs.…”