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EnglishThe ac-Stark shift (also known as the “light shift”) is one of the most important physical processes that arises in precision spectroscopy, affecting the basic understanding of field/matter interactions, measurements of fundamental constants, and even the atomic clocks onboard GPS satellites. Though the theory of the ac-Stark shift was fully developed by the 1960s/70s, precision tests of theory have, for the most part, been few. Taking advantage of recent developments in atomic clock technology, specifically the pulsed approach to atomic signal generation, which allows frequency measurements with a resolution of 10-15, we demonstrate a new methodology for measuring the ac-Stark shift. Here, we report results from a precision examination of the ac-Stark shift in a vapor phase system, examining the resonant frequency of the 87Rb 0-0 hyperfine transition for a perturbing laser tuned over a broad optical frequency range (18 GHz) around the D1 absorption resonance. Over the full frequency range the agreement between semiclassical theory and experiment is very good (better than 5×10-2), and in our experiments we test both the frequency dependence of the scalar and, for the first time, tensor components of the light shift.
Precision test of the ac Stark shift in a rubidium atomic vapor / Levi, F.; Camparo, J.; Francois, B.; Calosso, C. E.; Micalizio, S.; Godone, A.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 93:2(2016).
| Titolo: | Precision test of the ac Stark shift in a rubidium atomic vapor | |
| Autori: | ||
| Data di pubblicazione: | 2016 | |
| Rivista: | PHYSICAL REVIEW A | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevA.93.023433 | |
| Abstract: | The ac-Stark shift (also known as the “light shift”) is one of the most important physical proces...ses that arises in precision spectroscopy, affecting the basic understanding of field/matter interactions, measurements of fundamental constants, and even the atomic clocks onboard GPS satellites. Though the theory of the ac-Stark shift was fully developed by the 1960s/70s, precision tests of theory have, for the most part, been few. Taking advantage of recent developments in atomic clock technology, specifically the pulsed approach to atomic signal generation, which allows frequency measurements with a resolution of 10-15, we demonstrate a new methodology for measuring the ac-Stark shift. Here, we report results from a precision examination of the ac-Stark shift in a vapor phase system, examining the resonant frequency of the 87Rb 0-0 hyperfine transition for a perturbing laser tuned over a broad optical frequency range (18 GHz) around the D1 absorption resonance. Over the full frequency range the agreement between semiclassical theory and experiment is very good (better than 5×10-2), and in our experiments we test both the frequency dependence of the scalar and, for the first time, tensor components of the light shift. | |
| Full-text (pubblici): | partially_open | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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| File | Descrizione | Tipologia | Licenza | |
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| Test of Light Shift Theory - Long Paper.pdf | post print articolo principale | Documento in Post-print | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
| PhysRevA.93.023433.pdf | articolo principale | Versione editoriale | Non Pubblico - Accesso privato/ristretto | Utenti riconosciuti Richiedi una copia |
http://hdl.handle.net/11696/57401
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