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Cold Atom Laboratory

Head of the laboratory: Dr. Jose Jimenez Mier y Terán
jimenez@nucleares.unam.mx

Members:

Researchers: Dr. Jose I. Jimenez Mier y Teran,
Dr. Fernando Ramirez Martínez
Technicians: Dr. Jesus Flores Mijangos

Contact:

José I. Jimenez Mier y Teran
jimenez@nucleares.unam.mx
Phone: +(52) (55) 5622 4660/61/62
Ext: 2240

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Laboratory Description

Research Lines

At the Cold Atom Laboratory, we carry out precision spectroscopy experiments in which we study the interaction between alkali atoms and one or more light fields. In particular, we study the effects of the polarization of an intense light beam in the absorption of a test light beam. We carry out experiments in which we produce atomic electromagnetic transitions that are forbidden by electric dipole approximation. We are interested in studying the production of Rydberg states through multiphoton excitation. All of these experiments are carried out with rubidium atoms in an absorption cell, which is kept at room temperature, and also in a magneto-optical trap in which a cloud with millions of rubidium atoms at temperatures of around two hundred microkelvins. The laboratory has been supported by projects of the General Direction of Academic Staff Affairs (PAPIIT-DGAPA) and Conahcyt.

Laboratory Infrastructure

  • One magneto-optical trap for rubidium atoms.
  • Two ion vacuum pumps (PerkinElmer and Varian).
  • One-getter vacuum pump (SAES).
  • Titanium sublimation pump (Gamma Vacuum).
  • One turbomolecular pumping station (Leybold).
  • Two optical tables.
  • Three commercial system and seven other local construction systems with extended-cavity diode lasers. The emission wavelengths are 776 nm, 780 nm, 911 nm, and 1258 nm.
  • One continuous wave titanium-sapphire laser (M-squared) with a maximum emission wavelength of 2.5 W, and bandwidth below 1MHz. It can be tuned between 750 and 1000 nm.
  • Two commercial spectrometers to measure wavelength (Acton and Ocean Optics).
  • One laser frequency meter (Bristol) with a resolution of 50 pm.
  • Four acousto-optic modulators (Isomet).
  • One 500 MHz digital oscilloscope with a phosphor screen
  • Several 200 MHz digital oscilloscopes (Tektronix)
  • One PXI interface (National Instruments) for process control during the experiments.
  • Four continuous wave laser power meters.
  • Three infrared viewers.
  • Two CCD infrared-sensitive cameras.
  • One spatial light modulator (Hamamatsu).
  • Three photomultiplier tubes (Hamamatsu).
  • One phase-sensitive detector (Princeton Applied Research).
  • One radio frequency synthesizer (Hewlett-Packard).
  • Two frequency meters (Hewlett-Packard and Rhode & Schwarz).
  • One commercial atomic clock.
  • Power supplies (several brands).
  • Function generators (several brands).

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JOINT PROJECTS

  • Centre for Complexity Sciences (C3)

  • Marcos Moshinsky Foundation

  • PAUTA

UNAM COMMUNITY

  • Office for the Defense of University Rights

  • UNAM Emergency: 56160914 ó 56220140

  • PUMA Reaction: 56226464 ext 26464

Institute of Nuclear Sciences UNAM

Circuito Exterior s/n, Ciudad Universitaria, Col. Universidad Nacional Autónoma de México, Deleg. Coyoacán P.O. Box 70-543, Deleg. Coyoacán, C.P. 04510, Mexico City

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Website managed by: Aline Guevara Villegas, M.S., and Carlos Antonio Hernández Díaz, M.S.
comunicacion@correo.nucleares.unam.mx