Université de Neuchâtel

Imaging Microwave and DC Magnetic Fields in a Vapor-Cell Rb Atomic Clock

Affolderbach, Christoph ; Du, Guan-Xiang ; Bandi, Thejesh ; Horsley, Andrew ; Treutlein, Philipp ; Mileti, Gaetano

In: IEEE Transactions on Instrumentation and Measurement, 2015, vol. 64, no. 12, p. 3629-3637

We report on the experimental measurement of the dc and microwave magnetic field distributions inside a recently developed compact magnetron-type microwave cavity mounted inside the physics package of a high-performance vapor-cell atomic frequency standard. Images of the microwave field distribution with sub-100- μm lateral spatial resolution are obtained by pulsed optical-microwave Rabi...

Université de Neuchâtel

Laser-pumped paraffin-coated cell rubidium frequency standard

Bandi Nagabhushan, Thejesh ; Affolderbach, Christoph ; Mileti, Gaetano

In: Journal of Applied Physics, 2012, vol. 111, no. 12, p. 124906-124913

We have realized and studied a rubidium atomic frequency standard based on a paraffin-coated cell, exhibiting a short-term frequency stability −12 τ−1/2 between τ = 1 and 100 s. Characterization of the wall-coating is performed by measuring the T1and T2 relaxation times. Perturbations of the medium- to...