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Simultaneous laser cooling of two isotopes of krypton, $$^{83}\hbox {Kr}$$ 83Kr and $$^{84}\hbox {Kr}$$ 84Kr , is reported here in a two-isotope magneto-optical trap (TIMOT). The number of cold metastable $$^{83}\hbox {Kr}$$ 83Kr atoms in this TIMOT is dependent on the power of the repumping laser beams used, which is maximised for our set-up by varying the powers of repumping lasers. These studies...
We present here our experimental results on transfer of laser-cooled atom cloud to a quadrupole magnetic trap. We show that by choosing appropriately the ratio of potential energy in magnetic trap to kinetic energy of cloud in molasses, we can obtain the maximum phase-space density in the magnetic trap. These results guide us to choose the value of current to be switched in the quadrupole coils used...
We present studies on modifications in the temperature, number density and phase-space density when a laser-cooled atom cloud from optical molasses is trapped in a quadrupole magnetic trap. Theoretically, for a given temperature and size of the cloud from the molasses, the phase-space density in the magnetic trap is shown first to increase with increasing magnetic field gradient and then to decrease...
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