Polarization resonance on S–D two-photon transition of Rb atoms

Hamid, Ramiz; Cetintas, Mustafa; Çelik, Mehmet

doi:10.1016/j.optcom.2003.07.005

Cited by 12 publications

(13 citation statements)

References 16 publications

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“…At low magnetic fields ͑H ഛ 10 mG͒ we observed small values of residual resonances. It is important to note that the amplitude of residual resonances at low magnetic fields ͑H ഛ 10 mG͒ depends also on the order of linearity of polarization of the transmitted laser beam [13]. In this experiment, the order of the polarization linearity for the transmitted wave was measured I 90 / I 0 = 1 / 2500 (I 90 and I 0 are the intensities of the beam transmitted through the second polarizer at 90°and 0°w ith respect to the first polarizer).…”

Section: Resultsmentioning

confidence: 99%

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Observation of Faraday resonances on theS−Dtwo-photon transition ofRbatoms

2004

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In this work, a derivative of spectrum of polarization resonances in 5S 1/2 -5D 5/2 transitions of Rb atoms at different values of longitudinal magnetic field, which occurs due to the Faraday effect, was observed in a temperature controlled and magnetically shielded cell. The amplitude and spectral shape of Faraday resonances were investigated as a function of external magnetic field and the experimental results are described by a simple theoretical model.

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Section: Resultsmentioning

confidence: 99%

“…An experimental observation of the spectrum of the Doppler-free polarization resonance in two-photon transition on Rb atoms was published in Ref. [13].…”

Section: Introductionmentioning

confidence: 99%

Observation of Faraday resonances on theS−Dtwo-photon transition ofRbatoms

2004

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“…A dispersive-shaped polarization resonance is an ideal reference line for the modulation-free frequency locking. The polarization rotation of resonant monochromatic laser light that excites the two-photon transition was demonstrated in [28], and we implement a polarization spectroscopy set-up for the bi-chromatic excitation scheme. Considering that independent setting of polarizations of laser beams is important for maximizing the polarization signals, the bi-chromatic excitation scheme allowing this arrangement possesses an obvious advantage compared to the monochromatic excitation scheme.…”

Section: Polarization Spectroscopy Of the 5p 3/2 → 5d 5/2 Transition mentioning

confidence: 99%

Doppler-free two-photon resonances for atom detection and sum frequency stabilization

Akulshin¹,

Hall²,

Ivannikov³

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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We investigate the excitation of the 5D 5/2 level in Rb atoms using counterpropagating laser beams, which are nearly resonant to the one-photon 5S 1/2 → 5P 3/2 and 5P 3/2 → 5D 5/2 transitions, ensuring that a sum of the optical frequencies corresponds to the 5S 1/2 → 5D 5/2 transition. The excitation produced by two-photon and step-wise processes is detected via spontaneously emitted fluorescence at 420 nm arising from the 6P 3/2 → 5S 1/2 transition. The dependences of blue fluorescence intensity on atomic density and laser detuning from the intermediate 5P 3/2 level have been investigated. The sensitivity of the frequency detuned bi-chromatic scheme for atom detection has been estimated. A novel method for sum frequency stabilization of two free-running lasers has been suggested and implemented using two-photon Doppler-free fluorescence and polarization resonances.

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“…13 Alternatively, one can use Doppler-free polarization spectroscopy to obtain the locking signal without modulation. [14][15][16][17] Nevertheless, tunability of the two-photon detuning requires additional modulation at the offset frequency. 18 In this letter, we present a modulation-free, easily tunable scheme for frequency-sum stabilization of two lasers on a ladder transition.…”

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confidence: 99%

“…To obtain a steep locking signal, one may modulate the absorption 9 , transmission 10 or electromagnetically-induced transparency signals 11,12 , or use modulation transfer spectroscopy 13 . Alternatievely, one can use Doppler-free polarization spectroscopy to obtain the locking signal without modulation [14][15][16][17] . Nevertheless, tunability of the two-photon detuning requires additional modulation at the offset frequency 18 .…”

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Magneto-optical polarization rotation in a ladder-type atomic system for tunable offset locking

Parniak

Leszczyński

Wasilewski

2016

Applied Physics Letters

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We demonstrate an easily tunable locking scheme for stabilizing frequency-sum of two lasers on a two-photon ladder transition based on polarization rotation in warm rubidium vapors induced by magnetic field and circularly polarized drive field. Unprecedented tunability of the two-photon offset frequency is due to strong splitting and shifting of magnetic states in external field. In our experimental setup we achieve two-photon detuning of up to 700 MHz.

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Polarization resonance on S–D two-photon transition of Rb atoms

Cited by 12 publications

References 16 publications

Observation of Faraday resonances on theS−Dtwo-photon transition ofRbatoms

Observation of Faraday resonances on theS−Dtwo-photon transition ofRbatoms

Doppler-free two-photon resonances for atom detection and sum frequency stabilization

Magneto-optical polarization rotation in a ladder-type atomic system for tunable offset locking

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