Light effects in the atomic-motion-induced Ramsey narrowing of dark resonances in wall-coated cells

Breschi, E.; Kazakov, G.; Schori, C.; Domenico, G. Di; Mileti, G.; Литвинов, А. Н.; Matisov, B. G.

doi:10.1103/physreva.82.063810

Cited by 41 publications

(24 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Measured temperature coefficient of 1.5 x 10 -10 K -1 (comparable to the values found in literature [29,30]) and intensity light shift coefficients below 1.6x10 -12 /% are promising for competitive chip-scale and miniaturized clocks. The limitations for a high-performance clock using wall-coated cells were studied in [30].…”

Section: Other Current Investigations C Wall-coated Cellssupporting

confidence: 60%

Double-resonance in alkali vapor cells for high performance and miniature atomic clocks

Bandi

Pellaton

Miletic

et al. 2012

2012 IEEE International Frequency Control Symposium Proceedings

View full text Add to dashboard Cite

-We present two lines of investigations on vapor cell based laser-microwave double-resonance (DR) rubidium atomic frequency standards: a compact high-performance clock exhibiting σ y (τ) < 1.4x10 -13 τ -1/2 and a miniaturized clock with σ y (τ) < 1x10-11 τ -1/2. The applications of these standards are emphasized towards portable applications such as next generation GNSS, deep space missions and telecommunications. Other techniques for DR clocks are discussed in brief.

show abstract

Section: Other Current Investigations C Wall-coated Cellssupporting

confidence: 60%

Double-resonance in alkali vapor cells for high performance and miniature atomic clocks

Bandi

Pellaton

Miletic

et al. 2012

2012 IEEE International Frequency Control Symposium Proceedings

View full text Add to dashboard Cite

show abstract

“…The free motion of the polarized atomic spins in and out of the optical interaction region before spin relaxation induces a well-known Ramsey narrowing of the CPT resonance, well studied and described in paraffin-coated cells. 52,53 Additionally, it has to be noted that in our experiments, the residual Doppler effect on the clock transition is reduced by a Dicke-type narrowing because the cell characteristic length (1.5 cm) is smaller than the Cs atom ground-state microwave wavelength (3.2 cm). We investigated in Cs-OTS cells the CPT resonance lineshape for different beam diameters.…”

Section: Motion-induced Ramsey Narrowing and Ramsey Spectroscopy Imentioning

confidence: 93%

Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy

Hafiz

Maurice

Chutani

et al. 2015

Journal of Applied Physics

View full text Add to dashboard Cite

We report the realization and characterization using coherent population trapping (CPT) spectroscopy of an octadecyltrichlorosilane (OTS)-coated centimeter-scale Cs vapor cell. The dual-structure of the resonance lineshape, with presence of a narrow structure line at the top of a Doppler-broadened structure, is clearly observed. The linewidth of the narrow resonance is compared to the linewidth of an evacuated Cs cell and of a buffer gas Cs cell of similar size. The Cs-OTS adsorption energy is measured to be (0.42 6 0.03) eV, leading to a clock frequency shift rate of 2.7 Â 10 À9 /K in fractional unit. A hyperfine population lifetime, T 1 , and a microwave coherence lifetime, T 2 , of 1.6 and 0.5 ms are reported, corresponding to about 37 and 12 useful bounces, respectively. Atomic-motion induced Ramsey narrowing of dark resonances is observed in Cs-OTS cells by reducing the optical beam diameter. Ramsey CPT fringes are detected using a pulsed CPT interrogation scheme. Potential applications of the Cs-OTS cell to the development of a vapor cell atomic clock are discussed. V C 2015 AIP Publishing LLC. [http://dx.

show abstract

“…The Ramsey interrogation can be realized either with an atomic (or molecular) beam passing through two spatially separated fields, or with a pulsed electromagnetic field (see [2] and references therein). The effect of atomic-motion induced Ramsey narrowing of Coherent Copulation Trapping (CPT) resonance has been studied both experimentally and theoretically in buffered and coated cells, see [3][4][5][6][7][8] and references therein. The signature of this effect is the spectral narrowing of the dark resonance due to motion of oriented atomic spin in-and-out of the optical interaction region, see Figure 1 (a).…”

mentioning

confidence: 99%

Ramsey narrowing of the coherent population trapping resonance induced by motion of the atoms in wall-coated cells

Kazakov

Литвинов

Matisov

et al. 2011

2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum (FCS) Proceedings

Self Cite

View full text Add to dashboard Cite

In this paper we consider the theory of coherent population trapping resonance formation in cell with antirelaxation wall coating illuminated by the narrow laser beam. We study the dependence of resonance amplitude and width on radiation intensity and illuminated zone diameter. I.INTRODUCTION In Ramsey spectroscopy method [1] the ansamble of quantum systems (atoms or molecules) is interrogated by series (at least by two) of coherent field applications separated in time. The Ramsey interrogation can be realized either with an atomic (or molecular) beam passing through two spatially separated fields, or with a pulsed electromagnetic field (see [2] and references therein). The effect of atomic-motion induced Ramsey narrowing of Coherent Copulation Trapping (CPT) resonance has been studied both experimentally and theoretically in buffered and coated cells, see [3][4][5][6][7][8] and references therein. The signature of this effect is the spectral narrowing of the dark resonance due to motion of oriented atomic spin in-and-out of the optical interaction region, see Figure 1 (a). In [4] the authors identify the main feature of the phenomenon in buffer gas cell while in [5] they extensively explain the model developed for the interpretation. In [6,8] the atomic-motion narrowing effect was studied experimentally. It was found [6] that in weak fields the light shift and light broadening increase linearly with the square of illuminated zone, i.e. it behaves only on the total power of laser beam. More detailed theory of the CPT resonance formation in partially illuminated wall coated cell without buffer gas was developed in [7]. In [8] the similar theory was developed independently and demonstrates good quantitative agreement with experiment. At the same time, divergences between theory and experiment in [8] increases with the laser intensity and beam diameter.

show abstract

Light effects in the atomic-motion-induced Ramsey narrowing of dark resonances in wall-coated cells

Cited by 41 publications

References 43 publications

Double-resonance in alkali vapor cells for high performance and miniature atomic clocks

Double-resonance in alkali vapor cells for high performance and miniature atomic clocks

Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy

Ramsey narrowing of the coherent population trapping resonance induced by motion of the atoms in wall-coated cells

Contact Info

Product

Resources

About