Browsing by Author "Gobet, Jean"
Now showing items 1-7 of 7
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Alkali metal condensation zones in MEMS alkali vapor cells and characterization in CPT clock
Karlen, Sylvain; Overstolz, Thomas; Gobet, Jean; Haesler, Jacques; Droz, Fabien; Lecomte, Steve (2019-05-05)We fabricated MEMS vapor cells gold microdiscs, allowing the condensation of alkali metal on preferred locations without the use of a thermal gradient. Reduction of light-shift induced long-term frequency instability in ... -
Functionalized MEMS vapor cells for chip-scale magnetometery
Karlen, Sylvain; Overstolz, Thomas; Gobet, Jean; Haesler, Jacques; Droz, Fabien; Hunter, Dominic; Tayler, Michael; Bodenstedt, S.; Lecomte, Steve; Mitchell, Morgan W. (2019-12-08) -
Gold microdiscs as alkali preferential condensation spots for cell clock long-term frequency improvement
Karlen, Sylvain; Overstolz, Thomas; Gobet, Jean; Haesler, Jacques; Droz, Fabien; Lecomte, Steve (2018-04)One of the main source of long-term frequency instabilities in MEMS cell clocks is the light-shift induced by optical intensity changes which can be caused by the presence of condensed alkali droplets within the light-path ... -
Lifetime assessment of RbN_3-filled MEMS atomic vapor cells with Al_2O_3 coating
Karlen, Sylvain; Gobet, Jean; Overstolz, Thomas; Haesler, Jacques; Lecomte, Steve (2017-02-06) -
MEMS alkali vapor cellstechnologies for atomic sensors
Karlen, Sylvain; Haesler, Jacques; Balet, Laurent; Overstolz, Thomas; Bergonzi, Giovanni; Gobet, Jean; Droz, Fabien; Lecomte, Steve (2019) -
Non-destructive MEMS atomic vapor cells characterization by Raman spectroscopy and image analysis
Karlen, Sylvain; Gobet, Jean; Overstolz, Thomas; Haesler, Jacques (2016-04)The use of innovative and non-destructive methods to characterize the content of MEMS atomic vapor cells for atomic devices is reported: Raman spectroscopy is used as a fast and quantitative method to estimate the Nitrogen ... -
Quantitative Micro-Raman Spectroscopy for Partial Pressure Measurement in Small Volumes
Karlen, Sylvain; Gobet, Jean; Overstolz, Thomas; Haesler, Jacques; Lecomte, Steve (2017-12-01)We demonstrate the quantitative capabilities of Raman confocal microscopy as a nondestructive method to measure the partial pressure of molecular gases in mm3 range sealed volume having an optical access. Thanks to a ...