dor_id: 41720

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

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336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

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351.#.#.a: Artículos

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856.4.0.u: https://rmf.smf.mx/ojs/rmf/article/view/3557/3524

100.1.#.a: López R., M.; De Carlos L., E.; Talavera O., M.; Jiménez S., S.

524.#.#.a: López R., M., et al. (2007). Accurate absolute measurement of trapped Cs atoms in a MOT. Revista Mexicana de Física; Vol 53, No 5: 358-0. Recuperado de https://repositorio.unam.mx/contenidos/41720

245.1.0.a: Accurate absolute measurement of trapped Cs atoms in a MOT

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2007

264.#.1.c: 2007-01-01

653.#.#.a: Time, Frequency Metrology; cold Cs atoms; MOT; diode lasers; laser stabilization

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2007-01-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

884.#.#.k: https://rmf.smf.mx/ojs/rmf/article/view/3557

001.#.#.#: oai:ojs.rmf.smf.mx:article/3557

041.#.7.h: eng

520.3.#.a: A Cs-133 Magneto-Optical Trap (MOT) has been developed at the Time and Frequency Division of the Centro Nacional de Metrología, CENAM, in Mexico. This MOT is part of a primary frequency standard based on ultra-cold Cs atoms, called CsF-1 clock, under develo±ent at CENAM. In this Cs MOT, we use the standard configuration (\σ + - \σ - ) 4-horizontal 2-vertical laser beams 1.9 cm in diameter, with 5 mW each. We use a 852 nm, 5 mW, DBR laser as a master laser which is stabilized by saturation spectroscopy. Emission linewidth of the master laser is 1 MHz. In order to amplify the light of the master laser, a 50 mW, 852 nm AlGaAs laser is used as slave laser. This slave laser is stabilized by light injection technique. A 12 MHz red shift of the light is performed by two double passes through two Acusto-Optic Modulators (AOMs). The optical part of the CENAMs MOT is very robust against mechanical vibration, acoustic noise and temperature changes in our laboratory, because none of our diode lasers use an extended cavity to reduce the linewidth. In this paper, we report results of our MOT characterization as a function of several operation parameters such as the intensity of laser beams, the laser beam diameter, the red shift of light, and the gradient of the magnetic field. We also report accurate absolute measurement of the number of Cs atoms trapped in our Cs MOT. We found up to 6\times 10 7 Cs atoms trapped in our MOT measured with an uncertainty no greater than 6.4%.

773.1.#.t: Revista Mexicana de Física; Vol 53, No 5 (2007): 358-0

773.1.#.o: https://rmf.smf.mx/ojs/rmf/index

046.#.#.j: 2020-11-25 00:00:00.000000

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handle: 58f1b91e70fdb039

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last_modified: 2020-11-27 00:00:00

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Artículo

Accurate absolute measurement of trapped Cs atoms in a MOT

López R., M.; De Carlos L., E.; Talavera O., M.; Jiménez S., S.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

López R., M., et al. (2007). Accurate absolute measurement of trapped Cs atoms in a MOT. Revista Mexicana de Física; Vol 53, No 5: 358-0. Recuperado de https://repositorio.unam.mx/contenidos/41720

Descripción del recurso

Autor(es)
López R., M.; De Carlos L., E.; Talavera O., M.; Jiménez S., S.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Accurate absolute measurement of trapped Cs atoms in a MOT
Fecha
2007-01-01
Resumen
A Cs-133 Magneto-Optical Trap (MOT) has been developed at the Time and Frequency Division of the Centro Nacional de Metrología, CENAM, in Mexico. This MOT is part of a primary frequency standard based on ultra-cold Cs atoms, called CsF-1 clock, under develo±ent at CENAM. In this Cs MOT, we use the standard configuration (\σ + - \σ - ) 4-horizontal 2-vertical laser beams 1.9 cm in diameter, with 5 mW each. We use a 852 nm, 5 mW, DBR laser as a master laser which is stabilized by saturation spectroscopy. Emission linewidth of the master laser is 1 MHz. In order to amplify the light of the master laser, a 50 mW, 852 nm AlGaAs laser is used as slave laser. This slave laser is stabilized by light injection technique. A 12 MHz red shift of the light is performed by two double passes through two Acusto-Optic Modulators (AOMs). The optical part of the CENAMs MOT is very robust against mechanical vibration, acoustic noise and temperature changes in our laboratory, because none of our diode lasers use an extended cavity to reduce the linewidth. In this paper, we report results of our MOT characterization as a function of several operation parameters such as the intensity of laser beams, the laser beam diameter, the red shift of light, and the gradient of the magnetic field. We also report accurate absolute measurement of the number of Cs atoms trapped in our Cs MOT. We found up to 6\times 10 7 Cs atoms trapped in our MOT measured with an uncertainty no greater than 6.4%.
Tema
Time, Frequency Metrology; cold Cs atoms; MOT; diode lasers; laser stabilization
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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