干涉弱值放大法超灵敏测量光束偏转
Ultrasensitive Beam Deflection Measurement via Interferometric Weak Value Amplification
摘要：
我们报告使用干涉弱值技术放大非常小的横向偏转的光束。通过使光束的横向自由度与Sagnac干涉仪的哪一路状态纠缠，可以实现偏振无关偏转的光放大器。给出了干涉弱值放大法的理论，并与实验结果进行了比较，两者符合较好。特别感兴趣的是，我们测量的角度偏转的镜子下降到560 femtoradians和线性行程的压电致动器下降到20 femtometers。
英文摘要：
We report on the use of an interferometric weak value technique to amplify very small transverse deflections of an optical beam. By entangling the beam's transverse degrees of freedom with the which-path states of a Sagnac interferometer, it is possible to realize an optical amplifier for polarization independent deflections. The theory for the interferometric weak value amplification method is presented along with the experimental results, which are in good agreement. Of particular interest, we measured the angular deflection of a mirror down to 560 femtoradians and the linear travel of a piezo actuator down to 20 femtometers.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
