Chinese Optics Letters, 2017, 15 (2): 022401, Published Online: Jul. 26, 2018  

Observing the spin Hall effect of pseudothermal light through weak measurement Download: 865次

Author Affiliations
1 Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China
2 Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
Abstract
The spin Hall effect of light (SHEL) can be observed by the dark strip resulting from weak measurement. We find that the SHEL of a partially coherent beam (PCB) has a similar phenomenon as well. However, the dark strip in the SHEL of a PCB cannot be explained by considering the beam as an assemblance of coherent speckles. Also, the dark strip in a PCB is not purely dark. By analyzing the autocorrelation, we show that the SHEL of a PCB is the result of overlapping coherent speckles’ SHEL. We further prove our conclusion by adjusting convergence and incident angles. Finally, we develop a qualitative theory to clarify the SHEL of a PCB.

Bin Cao, Dong Wei, Pei Zhang, Hong Gao, Fuli Li. Observing the spin Hall effect of pseudothermal light through weak measurement[J]. Chinese Optics Letters, 2017, 15(2): 022401.

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