Difference between revisions of "LaserCooling"
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Two-stage cryogenic buffer-gas cooled beams are an excellent precursors to laser cooling experiments as the thermal velocities of the atoms or molecules being cooled are comparable to the depth of traps (e.g., magneto-optical traps) [1-2]. In molecular systems, the buffer-gas cooled | Two-stage cryogenic buffer-gas cooled beams are an excellent precursors to laser cooling experiments as the thermal velocities of the atoms or molecules being cooled are comparable to the depth of traps (e.g., magneto-optical traps) [1-2]. In molecular systems, the buffer-gas cooled | ||
| − | beams are relevant | + | beams are relevant as well because they quench internal degrees of freedom (e.g., rotational) and thus create a large number of molecules in the ground state. Recently, warm buffer-gas cooling techniques have been used to demonstrate the laser-cooling of a molecular species [3-4]. We are examining how to preform laser cooling of an atomic (Yb, Li) and molecular (CaF) beams from a slower two-stage cell design. Specifically, we are interested in using such a laser cooled beam to load traps. |
== References == | == References == | ||
Revision as of 13:37, 17 October 2011
People
Post Docs
- Matthew Wright
Grad Students
- Garrett Drayna
Overview
Two-stage cryogenic buffer-gas cooled beams are an excellent precursors to laser cooling experiments as the thermal velocities of the atoms or molecules being cooled are comparable to the depth of traps (e.g., magneto-optical traps) [1-2]. In molecular systems, the buffer-gas cooled beams are relevant as well because they quench internal degrees of freedom (e.g., rotational) and thus create a large number of molecules in the ground state. Recently, warm buffer-gas cooling techniques have been used to demonstrate the laser-cooling of a molecular species [3-4]. We are examining how to preform laser cooling of an atomic (Yb, Li) and molecular (CaF) beams from a slower two-stage cell design. Specifically, we are interested in using such a laser cooled beam to load traps.
References
- [1] Hsin-I Lu, Julia Rasmussen, Matthew J. Wright, Dave Patterson, and John M. Doyle. Phys. Chem. Chem. Phys., 2011, DOI: 10.1039/c1cp21206k.
- [2] D. Patterson and J.M. Doyle. J of Chem Phys 126, 154307 (2007).
- [3] E. S. Shuman, J. F. Barry, D. R. Glenn, and D. DeMille, Phys. Rev. Lett. 103, 223001 (2009).
- [4] E. S. Shuman, J. F. Barry, and D. DeMille. Nature 467, 820 (2010).
