Observation of multiramp fractional vortex beams and their total vortex strength in free space

Wen, Jisen; Gao, Binjie; Zhu, Guoming; Cheng, Yi‐Bing; Zhu, Shi‐Yao; Wang, Ligang

doi:10.1016/j.optlastec.2020.106411

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…For this reason, we characterize the phase distribution by performing an interference experiment as indicated in Fig. 2 [24][25][26][27][28]. We expanded a laser beam at a wavelength of 632.8 nm by using two lenses (focal length L1 = 30 mm; L2 = 200 mm) to achieve a diameter of 6 mm.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Experimental Implementation of the Fractional Vortex Hilbert's Hotel

Chen,

Wang,

You

et al. 2022

Preprint

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The Hilbert hotel is an old mathematical paradox about sets of infinite numbers. This paradox deals with the accommodation of a new guest in a hotel with an infinite number of occupied rooms. Over the past decade, there have been many attempts to implement these ideas in photonic systems. In addition to the fundamental interest that this paradox has attracted, this research is motivated by the implications that the Hilbert hotel has for quantum communication and sensing. In this work, we experimentally demonstrate the fractional vortex Hilbert's hotel scheme proposed by G. Gbur [Optica 3, 222-225 (2016)]. More specifically, we performed an interference experiment using the fractional orbital angular momentum of light to verify the Hilbert's infinite hotel paradox. In our implementation, the reallocation of a guest in new rooms is mapped to interference fringes that are controlled through the topological charge of an optical beam.

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Section: Experiments and Resultsmentioning

confidence: 99%

Experimental Implementation of the Fractional Vortex Hilbert's Hotel

Chen,

Wang,

You

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…32,33 Fractional vortex light fields have been drawn attention due to their exotic properties including fractional OAM entanglement, 34,35 topological structured darkness, 36 and quantum entanglement between fractional and integer OAM. 37 Especially, FVBs now are recognized that there are more complex propagation characteristics when propagating close to the focal plane, such as the bilateral symmetric and complicated intensity profiles, [38][39][40][41] the novel birth behavior of new vortices for focused FVBs, 40,41 and the topological competition. 42 The earliest research on optical trapping using FVBs was experimentally performed by Tao et al, who qualitatively ana-lyzed the effect of the radial opening in annular intensity rings on particles' rotation and demonstrated to guide and transport microscopic particles by using FVBs.…”

Section: Introductionmentioning

confidence: 99%