Collimation of chromium atomic beam by means of 1-D Doppler laser

ZHANG Bao-wu; MA Yan; LI Tong-bao

doi:10.3969/j.issn.1001-3806.2009.04.004

In order to study how the collimation of chromium(Cr)atomic by means of 1-D Doppler laser varying with laser power,laser detuning and interaction length after pre-collimation,the correlation between the coUimation and laser parameters was obtained after simulation with the fourth-order Runge-Kutta type algorithm at an adaptive step size.The results show that after precollimated by a slit in 5mm long,600mm far away from the downstream,the best collimation results can be obtained at laser power of 20mW,laser detuning of -0.5.Γ(Γ is the natural line-width of(Cr),and twice of the minimum interaction zone.

Collimation of chromium atomic beam by means of 1-D Doppler laser

1. Department of Physics, Tongji University, Shanghai 200092, China

Received Date: 2008-06-12

Accepted Date: 2008-08-12

Available Online: 2009-08-25

Abstract: In order to study how the collimation of chromium(Cr)atomic by means of 1-D Doppler laser varying with laser power,laser detuning and interaction length after pre-collimation,the correlation between the coUimation and laser parameters was obtained after simulation with the fourth-order Runge-Kutta type algorithm at an adaptive step size.The results show that after precollimated by a slit in 5mm long,600mm far away from the downstream,the best collimation results can be obtained at laser power of 20mW,laser detuning of -0.5.Γ(Γ is the natural line-width of(Cr),and twice of the minimum interaction zone.

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Reference (10)

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Collimation of chromium atomic beam by means of 1-D Doppler laser

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