Spectroscopy of micro-fabricated Cs vapours cells for miniature atomic clocks
| Autor: | M. Hasegawa, Christophe Gorecki, D. Miletic, G. Mileti, Christoph Affolderbach |
|---|---|
| Přispěvatelé: | Laboratoire temps-fréquence (LTF - UNINE), Université de Neuchâtel (UNINE), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2010 |
| Předmět: |
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
education.field_of_study Zeeman effect Chemistry Population Resonance Laser 01 natural sciences Atomic clock [SPI.MAT]Engineering Sciences [physics]/Materials law.invention 010309 optics symbols.namesake law 0103 physical sciences symbols Physics::Atomic Physics [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics Atomic physics 010306 general physics education Spectroscopy Hyperfine structure Quantum clock |
| Zdroj: | International School on Quantum Electronics: Laser Physics and Applications International School on Quantum Electronics: Laser Physics and Applications, Sep 2010, Nessebar, Bulgaria |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.882194 |
| Popis: | International audience; In this paper we present our spectroscopic studies on Coherent Population Trapping (CPT) in micro-fabricated Caesium cells and our evaluation of its application in miniature atomic frequency standards (atomic clocks). We observe the CPT signal on the Cs D1-line by coupling two hyperfine ground-state Zeeman sub-levels to a common excited state using two coherent electromagnetic fields created with a modulated DFB laser. Contrarily to double resonance, CPT does not require any microwave cavity, which should facilitate the miniaturization of a future atomic clock device. We study and report here on the light shift phenomena at different cell temperatures and laser wavelength. We also present resonance shifts due to cell temperature variations and clock frequency stability measurements. To the best of our knowledge, this article is the first report on light shift with Cs D1 line in a CPT vapour-cell atomic clock. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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