Systematic studies of rubidium-exposed surfaces by X-ray photoelectron spectroscopy and light-induced atom desorption

Hatakeyama, Atsushi; Watashima, Sae; Yamaguchi, Ayumi; Ikeno, Tomohiro; Usui, Hiroyuki; Kato, Ko; Harada, Ken-ichi; Sakemi, Yasuhiro; Mariotti, Emilio

doi:10.48550/arxiv.2105.14451

Cited by 1 publication

(1 citation statement)

References 37 publications

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“…To prolong the lifetime of cell, alkali-resistant GE-180 aluminosilicate glass was used and small droplets of alkali metal were sealed in cells. From microcosmic level, the lifetime of cell is limited by glass reactions with alkali metal atoms [36,37]. In the future we expect to take high temperature long term aging tests and more work to evaluate the lifetime of cell.…”

Section: Resultsmentioning

confidence: 99%

Ultra-sensitive all-optical comagnetometer with laser heating

Zhao¹,

Liu²,

Wei³

et al. 2022

J. Phys. D: Appl. Phys.

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Ultra-sensitive comagnetometers, which are designed to detect nuclear-and electron-spin-dependent interaction, have important applications ranging from basic research to inertial navigation systems (INSs). Unfortunately, electric heating, which is typically used in comagnetometers, introduces systematic errors because of the unavoidable generation of a modulated magnetic field. In this study, we investigate and introduce K-Rb-21Ne comagnetometer that uses laser heating for the first time, when operated in the spin-exchange relaxation free (SERF) regime. The performance of the comagnetometer, which is equipped with both laser heating and electric heating, is investigated, and the two heating modes are compared. The temperature characteristics of the comagnetometer are studied theoretically and experimentally. By optimizing the operating temperature and power density of the pump-light, an equivalent rotation sensitivity of 2.5×10^(-7) rad/s/√Hz@1Hz is achieved in laser heating mode. The improvement of laser-heating technology could prove essential to reduce electron relaxation and increase the low-frequency sensitivity of comagnetometers. Our results indicate that laser heating can make comagnetometers more suitable for applications in basic research (fifth force, dark matter, etc.), INSs, and other accurate measurements of electronic and nuclear precession.

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Section: Resultsmentioning

confidence: 99%