OBSERVATION OF ATOMS LASER COOLED BELOW THE DOPPLER LIMIT
OBSERVATION OF ATOMS LASER COOLED BELOW THE DOPPLER LIMIT
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DOI：
10.1103/physrevlett.61.169
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发表时间：
1988-07-11
影响因子：
8.6
通讯作者：
METCALF, HJ
中科院分区：
文献类型：
--
作者：
LETT, PD;WATTS, RN;METCALF, HJ
我们已经测量到从”光学糖蜜”中释放出的钠原子气体的温度低至43±20 μK。令人惊讶的是，这严重违反了普遍接受的多普勒冷却理论，该理论预测的极限为240 μK。为了确定温度，我们使用了几个互补的测量从糖蜜释放的原子的弹道运动。
We have measured the temperature of a gas of sodium atoms released from" optical molasses" to be as low as 43±20 μK. Surprisingly, this strongly violates the generally accepted theory of Doppler cooling which predicts a limit of 240 μK. To determine the temperature we used several complementary measurements of the ballistic motion of atoms released from the molasses.