We report on the resonant Fabry Perot cavity of the PVLAS (Polarization of the Vacuum with LASer) experiment operating at $\lambda = 1064$ nm with a record decay time of 2.7 ms, a factor more than two larger than any previously reported optical resonator. This corresponds to a coherence length of $8.1\cdot10^5$ m. The cavity length is 3.303 m, and the resulting finesse is 770 000.
Extremely long decay time optical cavity / DELLA VALLE, Federico; Milotti, Edoardo; A., Ejlli; U., Gastaldi; G., Messineo; L., Piemontese; G., Zavattini; R., Pengo; G., Ruoso. - In: OPTICS EXPRESS. - ISSN 1094-4087. - STAMPA. - 22:(2014), pp. 11570-11577. [10.1364/OE.22.011570]
Extremely long decay time optical cavity
DELLA VALLE, FEDERICO;MILOTTI, EDOARDO;
2014-01-01
Abstract
We report on the resonant Fabry Perot cavity of the PVLAS (Polarization of the Vacuum with LASer) experiment operating at $\lambda = 1064$ nm with a record decay time of 2.7 ms, a factor more than two larger than any previously reported optical resonator. This corresponds to a coherence length of $8.1\cdot10^5$ m. The cavity length is 3.303 m, and the resulting finesse is 770 000.Pubblicazioni consigliate
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