Wenjin Long, Jintao Pan, Xinyi Guo, Xiaohe Liu, Haolin Lin, Huadan Zheng, Jianhui Yu, Heyuan Guan, Huihui Lu, Yongchun Zhong, Shenhe Fu, Li Zhang, Wenguo Zhu, Zhe Chen. Optimized weak measurement of orbital angular momentum-induced beam shifts in optical reflection[J]. Photonics Research, 2019, 7(11): 1273
- Photonics Research
- Vol. 7, Issue 11, 1273 (2019)
Fig. 1. (a) Incident (green arrow), preselection (red arrow), and postselection (blue arrow) states of weak-value amplification represented in Poincare sphere. (b) Corresponding polarization angles.
Fig. 2. GH and IF shifts of the reflected vortex beam as functions of polarization angles ϕ 1 ϕ 2 θ = 45 ° w 0 = 125 μm
Fig. 3. Comparisons of the contributions of the OAM-dependent and OAM-independent terms in (a) GH and (b) IF shifts when ℓ = 4 ϕ 2 = 44 °
Fig. 4. Maximum OAM-induced (a) GH and (b) IF shifts changing with the incident angle. (c) Polarization angle ϕ 0 Δ
Fig. 5. Experiment setup for the measurement of OAM-induced shifts by weak technique. Insets show the intensity distributions of the generated vortex beam after aperture and the beam in the image plane of CCD with GH and IF shifts.
Fig. 6. Experimental (dots) and theoretical (lines) results of the amplified OAM-induced (a) GH and (b) IF shifts changing with the angle of GLP1 ϕ 1
Fig. 7. (a) Comparisons of the experimental (first and third rows) and theoretical (second and fourth rows) intensity patterns of the transmitted beam from GLP2. The amplified OAM-induced (b) GH and (c) IF shifts changing with the incident OAM for ϕ 1 = 179.7 °
Fig. 8. Experimental (dots) and theoretical (lines) results of the amplified OAM-induced (a), (c) GH and (b), (d) IF shifts changing with (a), (b) ϕ 1 ϕ 2 = 45 ° ϕ 2 ϕ 1 = 163.3 °
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