| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-02-26 |
| タイトル |
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タイトル |
Two-media laser threshold magnetometry: A magnetic-field-dependent laser threshold |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Yves Rottstaedt
Lukas Lindner
Florian Schall
Felix A. Hahl
Tingpeng Luo
Florentin Reiter
Ohshima Takeshi
Alexander M. Zaitsev
Roman Bek
Marcel Rattunde
Jan Jeske
Rüdiger Quay
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Nitrogen-vacancy (NV) centers in diamond are a promising platform for high-precision magnetometry. In contrast to the use of spontaneous emission in a number of NV-magnetometers, laser threshold magnetometry exploits stimulated emission of NV centers by placing an NVdoped diamond inside an optical cavity. The NV laser system is predicted to reach a high magnetic-field-dependent contrast and coherent signal strength, leading to an improved magnetic field sensitivity combined with high linearity. Here, we consider a two-media setup where the cavity additionally includes a vertical external cavity surface emitting a laser. This optically active material compensates cavity losses at 750 nm while still allowing for magnetic-field-dependent effects from the NV-diamond. We demonstrate a magnetic-field-dependent laser threshold and investigate the effects of pump laser induced absorption of the diamond. The experimental data are supported by an analytical simulation based on a rate model. Furthermore, we derive a generalized formula to compute the shot-noise-limited magnetic field sensitivity in the regime of high contrast, yielding 49.07(0.33) pT/√Hz for the present setup. Simulations with an optimized NV-diamond suggest that values down to 4.9 f T/√Hz are possible. |
| 書誌情報 |
APL Photonics
巻 10,
p. 086112,
発行日 2025-08
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1063/5.0275216 |
