Journal of the Optical Society of America

Stark Shift in the 6s6p^3P_1 State of Mercury

R. Kaul, William S. Latshaw

Published May 1, 1972• 11 citations

Abstract

We have measured the differential Stark shift in the 6s6p3P1 state of mercury. The technique we used was to measure the shift in the magnetic-field level crossing in 199Hg when an additional electric field was applied. We obtained the value E(mJ = ±1) − E(mJ = 0) = −2.367 ± 0.024 kHz/(kV/cm)2 · ∊2, where ∊ is the electric field.

DOI: 10.1364/josa.62.000615

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Journal of the Optical Society of America

Stark Shift in the 6s6p^3P_1 State of Mercury

R. Kaul, William S. Latshaw

Published May 1, 1972• 11 citations

Publisher

Abstract

DOI: 10.1364/josa.62.000615

Related papers

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P. Zimmermann

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Laurentius Windholz, Ryszard Drozdowski, Jerzy Kwela +1 more

In the spectral range between 480 nm and 630 nm the Stark effect of the transitions n1Q-21S, n1Q-21P and n3Q-23P(n=3÷9, Q=S, P,...) was studied using electric field up to 1500 kV/cm. For such a high field the Stark splitting becomes greater than the simple structure of the atom. Hence, anticrossings of the Stark components of the same magnetic quantum number occur. The experimental results have been compared with the theoretically determined shifts. The results of caluclations show good agreement with observation not only for low field values, but also in high fields and in case of level anticrossings.In the spectral range between 480 nm and 630 nm the Stark effect of the transitions n1Q-21S, n1Q-21P and n3Q-23P(n=3÷9, Q=S, P,...) was studied using electric field up to 1500 kV/cm. For such a high field the Stark splitting becomes greater than the simple structure of the atom. Hence, anticrossings of the Stark components of the same magnetic quantum number occur. The experimental results have been compared with the theoretically determined shifts. The results of caluclations show good agreement with observation not only for low field values, but also in high fields and in case of level anticrossings.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIENov 18, 20032 citations

Level-Crossing Spectroscopy with an Electric Field: Stark Shift of the 3P2 Term in Lithium

B. Budick, S. Marcus, Robert Novick

The method of level-crossing spectroscopy has been extended to a study of the Stark effect on the $3P$ term of lithium. Lithium atoms in a broad atomic beam are subjected to collinear electric and magnetic fields. The field values required to produce a level crossing or degeneracy are determined by observing the change in the angular distribution of the fluorescence resulting from the optical excitation of the $3P$ term. The magnetic field required to produce the crossing is found to shift to higher values as the electric field is applied. The shift increases as the square of the electric field and is given by $\ensuremath{\Delta}H=+0.056(11){E}^{2}$, where $\ensuremath{\Delta}H$ is in gauss and $E$ is in kilovolts per centimeter. The coefficient is in good agreement with the value 0.048 obtained from second-order perturbation theory and the Bates and Damgaard approximation.The method of level-crossing spectroscopy has been extended to a study of the Stark effect on the $3P$ term of lithium. Lithium atoms in a broad atomic beam are subjected to collinear electric and magnetic fields. The field values required to produce a level crossing or degeneracy are determined by observing the change in the angular distribution of the fluorescence resulting from the optical excitation of the $3P$ term. The magnetic field required to produce the crossing is found to shift to higher values as the electric field is applied. The shift increases as the square of the electric field and is given by $\ensuremath{\Delta}H=+0.056(11){E}^{2}$, where $\ensuremath{\Delta}H$ is in gauss and $E$ is in kilovolts per centimeter. The coefficient is in good agreement with the value 0.048 obtained from second-order perturbation theory and the Bates and Damgaard approximation.

Physical ReviewNov 15, 196516 citations

The Stark shift of the (6s

{)}^{2}

^{1}

{\mathit{S}}_{0}

\ensuremath{\rightarrow}(6s6p

{)}^{1}

{\mathit{P}}_{1}

transition in barium was measured using a laser to excite an atomic beam as it traversed a uniform electric field and a field-free region. The laser frequency was scanned across the transition while fluorescence produced by the radiative decay of the excited state was detected. The frequency scan was calibrated using an acousto-optic modulator which frequency shifted the laser by a specified amount. The Stark-shift rate was found to be -28.532\ifmmode\pm\else\textpm\fi{}0.060 kHz/(kV/cm

{)}^{2}

. The hyperfine splitting of the

^{135,137}\mathrm{Ba}

F=1/2 level relative to

^{138}\mathrm{Ba}

of the (6s6p

{)}^{1}

{\mathit{P}}_{1}

state was determined to be -549.47\ifmmode\pm\else\textpm\fi{}0.12 MHz, where the minus sign indicates that the

^{138}\mathrm{Ba}

transition is at a lower frequency.

The method of level-crossing spectroscopy has been extended to a study of the Stark effect on the

3P

term of lithium. Lithium atoms in a broad atomic beam are subjected to collinear electric and magnetic fields. The field values required to produce a level crossing or degeneracy are determined by observing the change in the angular distribution of the fluorescence resulting from the optical excitation of the

3P

term. The magnetic field required to produce the crossing is found to shift to higher values as the electric field is applied. The shift increases as the square of the electric field and is given by $\ensuremath{\Delta}H=+0.056(11){E}^{2}$, where $\ensuremath{\Delta}H$ is in gauss and

E

is in kilovolts per centimeter. The coefficient is in good agreement with the value 0.048 obtained from second-order perturbation theory and the Bates and Damgaard approximation.