Optimal preselection and postselection in weak measurements for observing photonic spin Hall effect

Journal Article · Mon Feb 03 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4864782· OSTI ID:22283203

Zhou, Xinxing; Li, Xing; Luo, Hailu; Wen, Shuangchun ^[1]

---

1. Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, College of Physics and Microelectronic Science, Hunan University, Changsha 410082 (China)

Photonic spin Hall effect (SHE) holds great potential applications in precision metrology. How to obtain a high measurement precision is an important issue to detect the photonic SHE. In this Letter, we propose using optimal preselection and postselection in weak measurements to enhance the measurement precision. We find that the maximum weak value and pointer shift can be obtained with an optimal overlap of preselection and postselection states. These findings offer the possibility for improving the precision of weak measurements and thereby have possible applications for accurately characterizing the parameters of nanostructures.

• OSTI ID: 22283203
• Journal Information: Applied Physics Letters, Vol. 104, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ACCURACY
HALL EFFECT
NANOSTRUCTURES
PHOTONS
SPIN