Author Affiliations
1Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China2Lab of Quantum Detection & Awareness, Space Engineering University, Beijing 101416, Chinashow less
Fig. 1. Vortex phenomenon in nature. (a) Spiral galaxy; (b) Hurricane
Fig. 2. Dislocations in crystals
[1] Fig. 3. Generation of optical vortex via the cross-phase
[18-20]. (a) Distribution of cross-phase; (b) Generation of high-order optical vortex via the low-order cross-phase; (c) Shaping and singularity manipulation of high-order optical vortex via the high-order cross-phase; (d) Generation of Hermite-Gaussian-like optical vortex via the low-order cross-phase; (e) Experimental setup for generation of optical vortex via the cross-phase
Fig. 4. (a) Setup of quadruple topological charges of optical vortex based on SPP
[23]; (b) Setup of cascaded and double-pass SPPs
[22]; (c) Experimental intensity distributions of optical vortex via the setup of cascaded and double-pass SPPs
[22]; (d) Fiber SPP made by Fiber Photonics Co
Fig. 5. (a) Superposition of multiple optical vortices
[26]; (b) Pixel-level polarization modulation via the pure phase SLM
[29] Fig. 6. Adjustable vortex laser and optical vortex detector
[33]. (a) Structure of Q-board; (b) Adjustable
Fig. 7. (a) Small scatterer in the spiral phase
[39]; (b) Frequency shift between the illumination and the detection light
[40]; (c) Observed power spectrum under the illumination of white light
[41] Fig. 8. (a) Free space detection; (b) Detection results of symmetrical objects
[45] Fig. 9. (a) Tiny scatter model
[47]; (b) Detection principle with small lateral displacement
[47] Fig. 10. Manipulation and the gyroscopic effect of vortices in BEC
[52]. (a) Gyroscopic effect of vortices in gasiform BEC; (b) BEC gyroscope model based on matter wave in the system of cold atom; (c) Manipulation on the excitation-polaritons by optical vortex carrying orbital angular momentum; (d) Spontaneous interference of excitation-polaritons due to the phase imprinting of the superimposed optical vortices
Fig. 11. Bose-Einstein Condensates of Exciton Polariton in the semiconductor flat microcavity
[54]. (a) Semiconductor flat microcavity formed with distributed Bragg mirrors where the semiconductor quantum wells enmeshed in the microcavity; (b) Side view of the semiconductor flat microcavity; (c) Location distribution of refractive index and field intensity in the microcavity corresponding to
Fig.11(b) Fig. 12. Dynamic characteristic of excitation-polariton BEC in semiconductor microcavities
[58]. (a) Evolution of superposition of excitation-polariton vortices driven by pump beam; (b) Rotary dynamic characteristic of superposition of excitation-polariton vortices
Fig. 13. System of exciton polariton condensates on the rotational state
[59]. (a) System of volute superposition state of exciton polariton condensates on the rotational state; (b) Relationship between the instantaneous angular rate of the superposition state of exciton polariton vortices and the rotate speed of the system (the rotation angle at the rotation rate of
and
)
旋转状态下的激子极化激元凝聚体系
[59]。(a)旋转状态下的激子极化激元涡旋叠加态体系;(b)激子极化激元涡旋叠加态瞬时转动角速率与体系转速的关系(限定时间内转速为
和
情况下涡旋叠加态转过的角度对比)