Optical molasses

Centrifugal Clarification of Molasses

The compositions of the various organic and inorganic species in cane molasses show wide variations. Centrifugation can be used to remove suspended so!id particles. The bulk of these are precipitated calcium compounds. Removal of calcium by precipitation and subsequent centrifugation can be enhanced by the addition of sulphuric acid. The effects of dilution, temperature, and acid addition on th...

Condensed Molasses Solubles / Vinasses

A Search for Optical Molasses in a Vapor Cell: General Analysis and Experimental Attempt

We analyze the application of optical molasses to a thermal vapor cell to make and collect cold atoms. Such an arrangement would simplify the production of cold atoms by eliminating the difficulty of first having to produce and slow an atomic beam. We present the results of our calculations, computer models, and experimental work. As a guide for future work, general results are given to illustr...

Beyond optical molasses: 3D raman sideband cooling of atomic cesium to high phase-space density

We demonstrate a simple, general purpose method to cool neutral atoms. A sample containing 3x10(8) cesium atoms prepared in a magneto-optical trap is cooled and simultaneously spin polarized in 10 ms at a density of 1.1x10(11) cm (-3) to a phase space density nlambda(3)(dB) = 1/500, which is almost 3 orders of magnitude higher than attainable in free space with optical molasses. The technique i...

Molasses and Yeast From Wood

One way to use the timber resources of our country more efficiently is to convert the refuse from logging and manufacturing operations into food. Research at the Forest Products Laboratory therefore is aimed in part at the conversion of wood to sugar solutions, which have been tested as livestock feed by several agricultural experiment stations. The investigations indicate that w^ood wastes can...