Magneto-Optical Ceramics with High Transparency for Highly Sensitive Magnetometer via Quantum Weak Measurement,ACS Applied Materials & Interfaces

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Magneto-Optical Ceramics with High Transparency for Highly Sensitive Magnetometer via Quantum Weak Measurement
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-07-22 , DOI: 10.1021/acsami.4c04658
Wenhan Han _{1,

2} , Hao Guo ₁ , Yurong Liu ₁ , Jiguo Wu ₁ , Zhiyou Zhang ₁ , Yucheng Ye ₃ , Jianqi Qi _{1,

2,

4}

Affiliation

Sensitive magnetometer technology is desirable for biomagnetic field detection and geomagnetic field measuring. Signal amplification materials such as magneto-optical crystals or ceramics are crucial for enhancing detection sensitivity, but severe optical scattering and low Verdet constant further limit its application. To develop high-sensitivity magnetometers for quantum weak measurement schemes, we have conducted investigations on the powder calcining dynamics and prepared a series of high-optical-quality (Ho/Dy)₂Zr₂O₇ transparent ceramic samples. The Verdet constant of magneto-optical materials was measured across a continuous wavelength spectrum, exhibiting a peak at 283 ± 5 rad/(T·m). We further established an electron transition mechanism to elucidate the exceptional magneto-optical attributes of dysprosium. In addition, samples demonstrated superior performance in weak-value amplification, reaching a low detectable magnetic field threshold of 3.5 × 10^–8 T and continuously worked over 6 h with high stability. Our work developed a highly sensitive magnetometer using optimized magneto-optical ceramics and provided guidance on design, fabrication, and application for magneto-optical ceramics in quantum weak measurement.

中文翻译：

高透明度磁光陶瓷用于通过量子弱测量实现高灵敏度磁力计

灵敏的磁力计技术非常适合生物磁场检测和地磁场测量。磁光晶体或陶瓷等信号放大材料对于提高检测灵敏度至关重要，但严重的光散射和低维尔德常数进一步限制了其应用。为了开发用于量子弱测量方案的高灵敏度磁力计，我们对粉末煅烧动力学进行了研究，并制备了一系列高光学质量（Ho/Dy） ₂ Zr ₂ O ₇透明陶瓷样品。在连续波长光谱上测量磁光材料的费尔德常数，在 283 ± 5 rad/(T·m) 处显示峰值。我们进一步建立了电子跃迁机制来阐明镝的特殊磁光属性。此外，样品在弱值放大方面表现出优异的性能，达到3.5× ^10-8T的低可检测磁场阈值，并连续工作6小时以上，具有较高的稳定性。我们的工作使用优化的磁光陶瓷开发了一种高灵敏度磁力计，并为磁光陶瓷在量子弱测量中的设计、制造和应用提供了指导。

更新日期：2024-07-22

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