Fig. 4: Plots comparing the acceleration sensitivities of a space-based (a0 → 0) MZ interferometer (black curve) and an atomic FPI (red dashed curve) with ki = 0.0596k0, w = 1 μm and d = 4 μm. | npj Microgravity

Fig. 4: Plots comparing the acceleration sensitivities of a space-based (a0 → 0) MZ interferometer (black curve) and an atomic FPI (red dashed curve) with ki = 0.0596k0, w = 1 μm and d = 4 μm.

From: Theoretical investigation of an atomic Fabry Perot interferometer based acceleration sensor for microgravity environments

Fig. 4

Here the minimum change in acceleration that can be detected, δa, is plotted as a function of length L, for varying finesse values (a) \({\mathcal{F}}=1\), (b) \({\mathcal{F}}=100\) and (c) \({\mathcal{F}}=400\). L is the initial distance between the BEC and the first barrier in an atomic FPI. For a MZ interferometer, the total interferometer length Lt = L + 2w + d. A particular finesse can be achieved while varying L, by manipulating barrier height accordingly. The sensitivity of an atomic FPI is better than that of the comparison MZ interferometer for high finesse and low length scales.

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