Measurement of the hyperfine splitting of the 9 S1/2 level in Cesium by Doppler-free two-photon spectroscopy

Kumar, P. Sreenivasa; Suryanarayana, M. V.

doi:10.1016/j.optcom.2011.12.067

Cited by 10 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is a Fizeau based wavelength meter and a similar wavelength meter has been used to measure the hyperfine splitting in Cs to an accuracy of 0.5 MHz [17,18]. Our wavelength meter has an absolute accuracy of 30 MHz in 10 h [19] after it is calibrated against a stabilized laser with an accurately known frequency.…”

Section: Methodsmentioning

confidence: 99%

Frequency measurement of the 6P3/2→7S1/2transition of thallium

et al. 2013

View full text Add to dashboard Cite

The saturated absorption spectrum of the 6P 3/2 → 7S 1/2 transition of 203 Tl and 205 Tl in a hollow cathode lamp has been observed with a frequency-doubled 1070 nm Nd : GdVO 4 laser. The third-derivative spectrum of the hyperfine components are obtained using the wavelength modulation spectroscopy and used to stabilize the laser frequency. The analysis of the error signal shows that the frequency stability reaches 30 kHz at 1 s averaging time. Such a frequency-stabilized light source at 535 nm can be used for laser cooling of thallium and for investigating the parity non-conservation effect in thallium. The absolute frequencies of hyperfine components are measured with an accuracy of 30 MHz using a precision wavelength meter. Including the pressure shift correction, the center of gravity of the transition frequency is determined to an accuracy of 22 MHz for both isotopes. Meanwhile, the isotope shift derived is in good agreement with earlier measurement.

show abstract

Section: Methodsmentioning

confidence: 99%

Frequency measurement of the 6P3/2→7S1/2transition of thallium

et al. 2013

View full text Add to dashboard Cite

show abstract

“…One significant advantage of these wavelength meters, compared with other available instruments, is the absence of any mechanical moving parts. However, relative frequencies can be measured with an accuracy of 500 kHz [28]. In the present study, a commercial wavemeter was utilized to initially measure the frequency of the hyperfine transition when the laser is locked to the fluorescence peak.…”

Section: B Wavemeter Methodsmentioning

confidence: 99%

“…Precision measurements in Cs can lead to greater understanding of atomic and fundamental physics, including current measurement on atomic parity violation [15], search for the permanent electric dipole moment of an electron [16], and also help in the determination of the fine structure constant by photon recoil measurements [17]. Extensive precision measurements on the excited states of 133 Cs have been reported by Doppler-free two-photon spectroscopy [18][19][20][21][22][23][24][25][26][27][28]. Fendel et al [23] have recently used the optical-frequency comb spectroscopy technique to determine the absolute frequency of the 6s 2 S 1/2 → 8s 2 S 1/2 transition.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hyperfine structure of the7d2D3/2level in cesium measured by Doppler-free two-photon spectroscopy

2013

View full text Add to dashboard Cite

We report the measurement of the hyperfine structure in the 7d 2 D 3/2 state of 133 Cs isotope by Doppler-free two-photon fluorescence spectroscopy in a gas cell. The hyperfine level separations were measured using a frequency-stabilized Ti:sapphire laser locked to one of the hyperfine transitions and an acousto-optic modulator locked to another hyperfine transition. The frequency separation between various hyperfine levels has been measured with a precision of ∼100 kHz. From the measured hyperfine separations of the excited state, we have determined the magnetic dipole coupling constant (A) and electric quadrupole coupling constant (B) for the 7d 2 D 3/2 state. The determined hyperfine structure constants are A = 7.38 (0.01) MHz and B = −0.18 (0.1) MHz. The values measured are found to be in good agreement with the earlier reported results using stepwise excitation process.

show abstract

“…Stalnaker et al [10] measured the absolute frequencies and the hyperfine coupling constant of Cs atoms by using a femtosecond frequency comb. Kiran Kumar et al [11] measured the hyperfine splitting of Cs |9S 1/2 using Doppler-free two-photon fluorescence spectroscopy. Yang et al [12] determined the hyperfine coupling constant of Cs |7S 1/2 state by optical-optical double-resonance spectroscopy (OODR).…”

Section: Introductionmentioning

confidence: 99%

Precise Measurement of Hyperfine Structure of Cesium 7S1/2 Excited State

Fan

Hao

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

We present a precise measurement of the hyperfine structure of cesium 7 S 1 / 2 excited state by employing electromagnetically induced spectroscopy (EIS) with a cesium three-level cascade ( 6 S 1 / 2 − 6 P 3 / 2 − 7 S 1 / 2 ) atom in a room temperature vapor cell. A probe laser, λ p = 852 nm, was coupled to a transition | 6 S 1 / 2 ⟩ → | 6 P 3 / 2 ⟩ , related frequency locked to the resonance hyperfine transition of | 6 S 1 / 2 ⟩ → | 6 P 3 / 2 ⟩ with a Fabry–Perot (FP) cavity and an electro-optic modulator (EOM). A coupling laser, λ c = 1470 nm, drove the | 6 P 3 / 2 ⟩ → | 7 S 1 / 2 ⟩ transition with the frequency scanned over the | 6 P 3 / 2 ⟩ → | 7 S 1 / 2 ⟩ transition line. The hyperfine level interval was extracted to be 2183.61 ± 0.50 MHz by analyzing EIS spectroscopy. The optical–optical double-resonance (OODR) spectroscopy is also presented for comparison, with the corresponding value of the hyperfine level interval being 2183.48 MHz ± 0.04 MHz, and the measured hyperfine splitting of excited 7 S 1 / 2 state is shown to be in excellent agreement with the previous work.

show abstract

Measurement of the hyperfine splitting of the 9 S1/2 level in Cesium by Doppler-free two-photon spectroscopy

Cited by 10 publications

References 33 publications

Frequency measurement of the 6P3/2→7S1/2transition of thallium

Frequency measurement of the 6P3/2→7S1/2transition of thallium

Hyperfine structure of the7d2D3/2level in cesium measured by Doppler-free two-photon spectroscopy

Precise Measurement of Hyperfine Structure of Cesium 7S1/2 Excited State

Contact Info

Product

Resources

About