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Coherent Population Trapping οn the Second Resonance Line of Potassium

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Gozzini S., Cartaleva S., Karaulanov T., Lucchesini A., Slavov D.

Acta Physica Polonica A

2009

vol. 116

issue 4

492-494

We present the observation of coherent population trapping resonances on the second resonance line of potassium: 4s^{2}S_{1/2} → 5 p^{2}P_{3/2} with wavelength of 404.4 nm. Moreover, a transfer of the coherent population trapping resonance occurs to the excited 4p^{2}P_{1/2} and 4p^{2}P_{3/2} states of the first resonance line due to cascade transitions. This transfer is evidenced by the observation of narrow resonances at the infrared 4s^{2}S_{1/2} → 4p^{2}P_{1/2} and 4s^{2}S_{1/2} → 4 p^{2}P_{3/2} transitions when alkali excitation is performed at the 404.4 nm violet line.

All-Optical Magnetometer Based on Resonant Excitation of Rubidium Atoms by Frequency Modulated Diode Laser Light

73%

Cartaleva S., Karaulanov T., Petrov N., Slavov D., Vaseva K., Yanev A., Mijailovic M., Grujic Z., Jelenkovic B.

Acta Physica Polonica A

2007

vol. 112

issue 5

871-876

Magnetic field and its gradient measurements based on coherent population trapping resonances at the D_1 line of ^{87}Rb are performed by means of coupling two ground-state Zeeman sublevels belonging to different hyperfine levels to a common excited state. Two coherent laser fields with frequency difference of 6.8 GHz are used. They are produced by direct current modulation of a diode laser. The resonance splitting and broadening caused by the applied magnetic field is measured by scanning the laser modulation frequency around the ground-state hyperfine frequency.

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2 Acta Physica Polonica A

1 2009

1 2007

2 Cartaleva S.

2 Karaulanov T.

2 Slavov D.

1 Gozzini S.

1 Grujic Z.

1 Jelenkovic B.

1 Lucchesini A.

1 Mijailovic M.

1 Petrov N.

1 Vaseva K.

1 Yanev A.

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Coherent Population Trapping οn the Second Resonance Line of Potassium

All-Optical Magnetometer Based on Resonant Excitation of Rubidium Atoms by Frequency Modulated Diode Laser Light