Laser locking to the 199Hg 1S0-3P0 clock transition with 5.4 × 10(-15)/✓τ fractional frequency instability
In: Optics letters, Jg. 37 (2012-09-04), Heft 17
Online
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Zugriff:
With 199Hg atoms confined in an optical lattice trap in the Lamb-Dicke regime, we obtain a spectral line at 265.6 nm for which the FWHM is ~15 Hz. Here we lock an ultrastable laser to this ultranarrow 1S0-3P0 clock transition and achieve a fractional frequency instability of 5.4×10(-15)/✓τ for τ ≤ 400 s. The highly stable laser light used for the atom probing is derived from a 1062.6 nm fiber laser locked to an ultrastable optical cavity that exhibits a mean drift rate of -6.0×10(-17) s(-1) (-16.9 mHz s(-1) at 282 THz) over a six month period. A comparison between two such lasers locked to independent optical cavities shows a flicker noise limited fractional frequency instability of 4×10(-16) per cavity.
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Laser locking to the 199Hg 1S0-3P0 clock transition with 5.4 × 10(-15)/✓τ fractional frequency instability
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| Autor/in / Beteiligte Person: | McFerran, John J. ; Y. Le Coq ; Mandache, C. ; Bize, Sébastien ; Daniel Varela Magalhães ; Zhang, Wei ; Millo, J. ; Santarelli, Giorgio ; Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE) ; Systèmes de Référence Temps Espace (SYRTE) ; Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
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| Zeitschrift: | Optics letters, Jg. 37 (2012-09-04), Heft 17 |
| Veröffentlichung: | 2012 |
| Medientyp: | unknown |
| ISSN: | 1539-4794 (print) ; 0146-9592 (print) |
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