Design Considerations for Micro-Glassblown Atomic Vapor Cells

Noor, Radwan M.; Asadian, Mohammad H.; Shkel, Andrei M.

doi:10.1109/jmems.2019.2949084

Cited by 9 publications

(1 citation statement)

References 41 publications

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“…In 2019, Noor et al utilized a micro-glass-blowing process to fabricate micro-spheretype alkali metal vapor cells [50,51] and discussed a variety of design considerations, including chamber geometry, optical properties, materials, and surface coatings. The waferlevel coating process utilizing Al 2 O 3 was found to increase the 131 Xe relaxation time (T 2 ) by a factor of 4, and T 2 was improved by a factor of 3 after converting borosilicate glass (Pyrex) to aluminosilicate glass (ASG).…”

Section: Spherical Alkali Vapor Cells Through Wafer Blowingmentioning

confidence: 99%

Recent Progress on Micro-Fabricated Alkali Metal Vapor Cells

Wang

et al. 2022

Biosensors

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Alkali vapor cells are the core components of atomic sensing instruments such as atomic gyroscopes, atomic magnetometers, atomic clocks, etc. Emerging integrated atomic sensing devices require high-performance miniaturized alkali vapor cells, especially micro-fabricated vapor cells. In this review, bonding methods for vapor cells of this kind are summarized in detail, including anodic bonding, sacrificial micro-channel bonding, and metal thermocompression bonding. Compared with traditional through-lighting schemes, researchers have developed novel methods for micro-fabricated vapor cells under both single- and double-beam schemes. In addition, emerging packaging methods for alkali metals in micro-fabricated vapor cells can be categorized as physical or chemical approaches. Physical methods include liquid transfer and wax pack filling. Chemical methods include the reaction of barium azide with rubidium chloride, ultraviolet light decomposition (of rubidium azide), and the high-temperature electrolysis of rubidium-rich glass. Finally, the application trend of micro-fabricated alkali vapor cells in the field of micro-scale gyroscopes, micro-scale atomic clocks, and especially micro-scale biomagnetometers is reviewed. Currently, the sensing industry has become a major driving force for the miniaturization of atomic sensing devices, and in the near future, the micro-fabricated alkali vapor cell technology of atomic sensing devices may experience extensive developments.

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Section: Spherical Alkali Vapor Cells Through Wafer Blowingmentioning

confidence: 99%

Recent Progress on Micro-Fabricated Alkali Metal Vapor Cells

Wang

et al. 2022

Biosensors

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Microfabricated Atomic Vapor Cells with Multi-Optical Channels Based on an Innovative Inner-Sidewall Molding Process

Yu,

Chen,

Wang

et al. 2023

Engineering

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Micro-fabricated components for cold atom sensors

McGilligan

Gallacher

Griffin

et al. 2022

Review of Scientific Instruments

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Laser cooled atoms have proven transformative for precision metrology, playing a pivotal role in state-of-the-art clocks and interferometers and having the potential to provide a step-change in our modern technological capabilities. To successfully explore their full potential, laser cooling platforms must be translated from the laboratory environment and into portable, compact quantum sensors for deployment in practical applications. This transition requires the amalgamation of a wide range of components and expertise if an unambiguously chip-scale cold atom sensor is to be realized. We present recent developments in cold-atom sensor miniaturization, focusing on key components that enable laser cooling on the chip-scale. The design, fabrication, and impact of the components on sensor scalability and performance will be discussed with an outlook to the next generation of chip-scale cold atom devices.

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Design Considerations for Micro-Glassblown Atomic Vapor Cells

Cited by 9 publications

References 41 publications

Recent Progress on Micro-Fabricated Alkali Metal Vapor Cells

Recent Progress on Micro-Fabricated Alkali Metal Vapor Cells

Microfabricated Atomic Vapor Cells with Multi-Optical Channels Based on an Innovative Inner-Sidewall Molding Process

Micro-fabricated components for cold atom sensors

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