Two Step Deceleration of Cesium Atomic Beam by Frequency Modulated Diode Lasers

Yoneyama, Toshio; Sato, Shunichi

doi:10.1007/s10043-005-0456-5

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Frequency-modulated External Cavity Diode Laser1

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2006

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“…The velocity distribution after white-light cooling depends on the spectral shape of the white light used. In a previous experiment, 7) it was found that the final velocity width of the decelerated atoms was affected by the rise of light intensity at the spectral edge of the deceleration laser. Because an ECDL has a smaller spectral width than a conventional, free-running diode laser, a frequency-modulated ECDL is expected to have a larger spectral width and a sharp rise at the spectral edge.…”

Section: Frequency-modulated External Cavity Diode Lasermentioning

confidence: 91%

Velocity Control of Cesium Atomic Beam Using Two Frequency-Modulated External-Cavity Diode Lasers

Hirayama¹,

Sato²

2006

Jpn. J. Appl. Phys.

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The velocity of a cesium atomic beam was controlled using two broadband frequency-modulated, external-cavity diode lasers. One laser beam was used to decelerate faster atoms and the other was used to accelerate slower atoms. The central velocity of the atoms was readily tuned in a wide range while maintaining the width and peak height of a velocity distribution. In addition, the velocity distribution of cesium atoms was calculated on the basis of the scattering force caused by two frequencymodulated laser beams. The calculated peak ratio was in good agreement with the experimental result.

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Section: Frequency-modulated External Cavity Diode Lasermentioning

confidence: 91%