Optimized weak measurement of orbital angular momentum-induced beam shifts in optical reflection

Long, Wenjin; Pan, Jintao; Guo, Xinyi; Liu, Xiaohe; Lin, Haolin; Zheng, Hongfei; Yu, Jianhui; Guan, Heyuan; Lu, Huihui; Zhong, Yi; Fu, Shenhe; Zhang, Li; Chen, Zhe

doi:10.1364/prj.7.001273

Cited by 31 publications

(11 citation statements)

References 28 publications

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“…Owing to its unique features in intensity and phase structures, OVB has more extensive prospects in optical communication [4,5] , beam shaping [6,7] , ion capture [8] and so on. Additionally, the optical vortex beam array (OVBA) with multiple optical vortices and phase singularities further promotes the development of optical imaging [4,9,10] and optical measurement [11,12] , providing a promising platform for photon technology. It has been proved by the experiments that the OVBAs with controllable structure can be generated, based on suitably designed diffractive optical devices such as Dammann gratings [13,14] and spatial light modulators (SLM) [15,16] .…”

Section: Introductionmentioning

confidence: 99%

Generating the optical vortex array based on a coherent phased array

Zhang

Long

Chang

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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Coherent beam combining (CBC) can scale the overall output power while maintaining high beam quality. In recent years, this technique has also been employed to generate the high-power optical vortex beam (OVB). In this work, we designed a coherent phased array, and an optical vortex beam array (OVBA) was generated via the CBC technique. Numerical simulation was studied and an experimental setup was set up. The results showed that the OVBA could be generated in the far field. Meanwhile, the phase detection results indicated that the OVBA included several phase singularities. This work can present a new idea for manipulating the high power structured optical fields.

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Section: Introductionmentioning

confidence: 99%

Generating the optical vortex array based on a coherent phased array

Zhang

Long

Chang

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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“…Moreover, the concept of SOC has also inspired many related studies. At a sharp interface between two media, it is found that the orbit-orbit interaction of light can induce strong Imbert-Fedorov shift [35][36][37]. And further, the orbit Hall effect of light is unveiled, which can be very large in magnitude and is inherent to waves of any nature [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Low-light-level spin–orbit splitting via structured light cross-Kerr interaction in coherent atomic media

Zhao

2023

Commun. Theor. Phys.

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We explore the spin-orbit coupling (SOC) mechanism for structured light in coherent atomic media with low-light-level cross-Kerr nonlinearity. Using the five-level M-type electromagnetic induced transparency (EIT) system as a prototype, we show that spin-orbit splitting for a weak spinor image can be generated by a weak trigger field carrying orbital angular momentum (OAM) at low-light intensity. By quantum-optical analogy, the paraxial focusing and defocusing of the two pseudo-spin states in the spinor image can be governed by a Pauli-like equation. More importantly, by changing the EIT parameters, especially the topological charge of the weak trigger field, the SOC-induced radial quantization of the spinor image can be rather significant, giving rise to positive or negative OAM-OAM mode separation in free space. This suggests that the separation can be flexibly controlled due to strong image-vortex interaction based on few-photon cross-Kerr modulation. Our findings may have the potential for all-optical OAM multiplexing and demultiplexing of structured light fields toward few-photon quantum control and multimode communication.

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“…Owing to the unique features in intensity and phase structures, OVBs have gained substantial attention in a variety of applications, including optical communication [4][5][6], optical tweezers [7,8], and beam shaping [9,10]. Compared with an OVB, the optical vortex beam array (OVBA) with multiple optical vortex and phase singularities may offer a promising platform for photonic technologies, accordingly spurring the development of the optical imaging [7,11,12], and optical measurements [13,14], etc. There are many methods to generate the OVBA.…”

Section: Introductionmentioning

confidence: 99%

Customizing optical vortex beams array by coherent beam combining technique

Long

Chen

Hou

et al. 2022

5th Optics Young Scientist Summit (OYSS 2022)

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In this paper, an innovation coherent beam combining (CBC) architecture to generate the structured light beams array was proposed and experimented. The simulation and experimental results reveal that the optical vortex beams array (OVBA) with multi-modes can be generated effectively in the far field. The OVBA is composed of multiple sub-OVB in the intensity distribution. Furthermore, the number of OVBs can be modulated by changing the fill factor of the laser array in the near field. In particular, the performance of a OVBA copier was observed, which may deepen the understanding of creating the structured light fields by CBC technique. The experiment results were in excellent agreement with the simulation results. This work could provide valuable and practical reference on generation and manipulation of high power structured light beams.

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Optimized weak measurement of orbital angular momentum-induced beam shifts in optical reflection

Cited by 31 publications

References 28 publications

Generating the optical vortex array based on a coherent phased array

Generating the optical vortex array based on a coherent phased array

Low-light-level spin–orbit splitting via structured light cross-Kerr interaction in coherent atomic media

Customizing optical vortex beams array by coherent beam combining technique

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