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Institute of Physics eBooks

Techniques for Lithium Isotope Separation, Laser Cooling, and Scattering

Ignacio Enrique Olivares Bahamondes, Patrick Carrazana

Published Aug 31, 2022• 2 citations
Publisher
DOI
10.1088/978-0-7503-3839-4

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History of our laser experiments

Ignacio Enrique Olivares Bahamondes, Patrick Carrazana

Our aim was to understand the physics of laser isotope separation and to study the possibility to scale the method to a large scale production. After achieving first results the program was closed and one of us (Ignacio E Olivares) moved to the Universidad de Santiago de Chile starting a project of laser cooling and trapping of rubidium atoms. Although the equipment was totally new and adapted to a different wavelength many techniques that we obtained from laser isotope separation were useful for the magneto optical trap. We also continue studying the absorption of lithium and laser stabilization techniques such as the Pound–Drever–Hall method. We considered that a key experimental technique for lithium isotope separation and for laser cooling is the Pound–Drever–Hall method for laser stabilization. This technique of laser stabilization is discussed in this book.

Institute of Physics eBooks•Sep 1, 2022•0 citations

Laser cooling and trapping ; techniques

Anders Kastberg

•Nov 2, 2015•0 citations

Single Photon Atomic Sorting: Isotope Separation with Maxwell's Demon

M. Jerkins, Isaac Chavez, Uzi Even +1 more

Isotope separation is one of the grand challenges of modern society and holds great potential for basic science, medicine, energy, and defense. We consider here a new and general approach to isotope separation. The method is based on an irreversible change of the mass-to-magnetic moment ratio of a particular isotope in an atomic beam, followed by a magnetic multipole whose gradients deflect and guide the atoms. The underlying mechanism is a reduction of the entropy of the beam by the information of a single-scattered photon for each atom that is separated. We numerically simulate isotope separation for a range of examples, including lithium, for which we describe the experimental setup we are currently constructing. Simulations of other examples demonstrate this technique's general applicability to almost the entire periodic table. We show that the efficiency of the process is only limited by the available laser power, since one photon on average enables the separation of one atom. The practical importance of the proposed method is that large-scale isotope separation should be possible, using ordinary inexpensive magnets and the existing technologies of supersonic beams and lasers.

arXiv:1001.0944•Jan 6, 2010•0 citations
Our aim was to understand the physics of laser isotope separation and to study the possibility to scale the method to a large scale production. After achieving first results the program was closed and one of us (Ignacio E Olivares) moved to the Universidad de Santiago de Chile starting a project of laser cooling and trapping of rubidium atoms. Although the equipment was totally new and adapted to a different wavelength many techniques that we obtained from laser isotope separation were useful for the magneto optical trap. We also continue studying the absorption of lithium and laser stabilization techniques such as the Pound–Drever–Hall method. We considered that a key experimental technique for lithium isotope separation and for laser cooling is the Pound–Drever–Hall method for laser stabilization. This technique of laser stabilization is discussed in this book.
Isotope separation is one of the grand challenges of modern society and holds great potential for basic science, medicine, energy, and defense. We consider here a new and general approach to isotope separation. The method is based on an irreversible change of the mass-to-magnetic moment ratio of a particular isotope in an atomic beam, followed by a magnetic multipole whose gradients deflect and guide the atoms. The underlying mechanism is a reduction of the entropy of the beam by the information of a single-scattered photon for each atom that is separated. We numerically simulate isotope separation for a range of examples, including lithium, for which we describe the experimental setup we are currently constructing. Simulations of other examples demonstrate this technique's general applicability to almost the entire periodic table. We show that the efficiency of the process is only limited by the available laser power, since one photon on average enables the separation of one atom. The practical importance of the proposed method is that large-scale isotope separation should be possible, using ordinary inexpensive magnets and the existing technologies of supersonic beams and lasers.