H. G. Robinson

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– We report on the fabrication of millimeter-sized vapor cells and their performance in atomic clocks based on coherent population trapping (CPT). We discuss two fabrication techniques. The first one is based on hollow-core pyrex fibers, fused with a CO 2 laser or micro-torch, and the second one involves anodic bonding of micro-machined silicon wafers to(More)
We describe recent efforts to develop microfabricated atomic frequency references capable of supporting a wide variety of commercial and military systems such as global positioning and wireless communication. These devices are anticipated to eventually have a volume of 1 cm 3 , dissipate less than 30 mW of electrical power and maintain a fractional(More)
We demonstrate the critical subsystems of compact atomic clocks and magnetometers based on microfabricated physics packages. The clock components have a volume below 5 cm<sup>3</sup>, a fractional frequency instability below 6times10<sup>-10</sup>tau<sup>1/2</sup>, and consume 200 mW of power. The magnetometer has a sensitivity below 40pT/Hz<sup>1/2</sup>(More)
The physics package for a chip-scale atomic frequency reference was constructed and tested. The device has a total volume of 9.5 mm 3 , dissipates 75 mW of electrical power at an ambient temperature of 45 °C and has a short-term fractional frequency instability of 2.4×10-10 /—W. Advanced cell fabrication techniques indicate a long-term instability near(More)
We describe a method for characterizing self-assembled monolayers ͑SAMs͒ in terms of their performance as antirelaxation wall coatings for alkali atom vapor cells. A combination of initial surface analysis and subsequent laser spectroscopy is used to provide insight into the quality of the coating, as well as its performance under the exposure to alkalis as(More)
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