کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9952718 | 1461820 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Demonstration of the mass-producible feature of a Cs vapor microcell technology for miniature atomic clocks
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Demonstration of the mass-producible feature of a Cs vapor microcell technology for miniature atomic clocks Demonstration of the mass-producible feature of a Cs vapor microcell technology for miniature atomic clocks](/preview/png/9952718.png)
چکیده انگلیسی
We report on the characterization of Cs vapor microcells based on pill dispensers and fabricated in a MEMS foundry according to a process compatible with mass-production. More than three quarters of cells from 6-inch wafers are successfully filled with Cs vapor. Various cells of a given wafer have been characterized using coherent population trapping (CPT) spectroscopy, demonstrating similar buffer gas (Ne) pressure with a standard deviation of about 2.5% and CPT resonances with similar linewidth and contrast properties. In addition, frequency drifts mainly attributed to cell inner atmosphere variations have been investigated onto several cells over 250-500â¯h measurements. The corresponding contribution at 1 day averaging time to a clock fractional frequency stability is estimated to be about 10â11 or lower. In a last section, the fractional frequency stability of a clock prototype using one fabricated Cs-Ne microcell is measured to be 2.5â¯Ãâ¯10â11â¯Ïâ1/2 up to 200â¯s averaging time and better than 2â¯Ãâ¯10â11 at 105â¯s. The clock frequency stability is mainly limited at short-term by the frequency-to-amplitude (FM-AM) noise conversion process and the laser amplitude (AM) noise. The mid-term stability is mainly affected by temperature-induced light shift effects. These performances tend to demonstrate that this vapor cell technology, compatible with mass-production, is suitable for miniature quantum clocks or sensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 280, 1 September 2018, Pages 99-106
Journal: Sensors and Actuators A: Physical - Volume 280, 1 September 2018, Pages 99-106
نویسندگان
R. Vicarini, V. Maurice, M. Abdel Hafiz, J. Rutkowski, C. Gorecki, N. Passilly, L. Ribetto, V. Gaff, V. Volant, S. Galliou, R. Boudot,