نتایج جستجو برای: optical pumping
تعداد نتایج: 278457 فیلتر نتایج به سال:
An optical pumping scheme is presented that uses incoherent Raman transitions to prepare a trapped cesium atom in a specific Zeeman state within the 6S1/2, F=3 hyperfine manifold. An important advantage of this scheme over existing optical pumping schemes is that the atom can be prepared in any of the F=3 Zeeman states. We describe an experimental implementation of the scheme and show that a fr...
Arrays of quantum dot micropillar lasers are an attractive technology platform for various applications in the wider field nanophotonics. Of particular interest is potential efficiency enhancement as consequence cavity electrodynamics effects which makes them prime candidates next generation photonic neurons neural network hardware. However, optical pumping their power-conversion can be very lo...
The methods producing cold molecules from cold atoms tend to leave molecular ensembles with substantial residual internal energy. For instance, cesium molecules initially formed via photoassociation of cold cesium atoms are in several vibrational levels nu of the electronic ground state. We applied a broadband femtosecond laser that redistributes the vibrational population in the ground state v...
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