Experimental investigation of light storage of diffraction-free and quasi-diffraction-free beams in hot atomic gas cell

Wang, Chengyuan; Cui, Yun; Jiang, Zibin; Yu, Ya Jun; Cao, Mingtao; Wei, Dong; Gao, Hong; Li, Fuli

doi:10.1007/s11467-021-1113-6

Cited by 6 publications

(3 citation statements)

References 39 publications

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“…[34,35] Among these protocols, EIT has been selected as the most popular candidate to store spatial mode information. [22,[36][37][38] The storage of Airy wave packets has been theoretically investigated in the EIT-driven atomic gas by Hang et al [22,36] Then, the storage of 2D Airy wave packet experimentally demonstrated in a doped solid EIT-driven by Wang et al [37] and in atomic vapor by Wang et al [38] However, the storage of CAB has not yet been investigated experimentally, which is essentially important because of the abruptly autofocusing property in atomic medium that could be employed to present the waveguided multiplexed quantum memory.…”

Section: Introductionmentioning

confidence: 99%

Optical storage of circular airy beam in atomic vapor

Chang 常,

Yang 杨,

Ma 马

et al. 2024

Chinese Phys. B

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The realization of quantum storage of spatial light field is of great significance to the construction of high-dimensional quantum repeater. In this paper, we experimentally realize the storage and retrieval of circular airy beams (CABs) by using the Λ-type three-level energy system based on the electromagnetically induced transparency in a hot rubidium atomic vapor cell. The weak probe beam field is modulated with phase distribution of CABs by a spatial light modulator. We store the probe circular airy beam (CAB) into the rubidium atomic vapor cell and retrieve after the demanded delay. We quantitatively analyze the storage results and give corresponding theoretical explanations. Moreover, we investigate the autofocusing and self-healing effect of the retrieved CAB, which indicates that the properties and beam shape of CAB maintains well after storage. Our work will have potential applications in the storage of high-dimensional quantum information, and is also useful for improving the channel capacities of quantum internet.

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Section: Introductionmentioning

confidence: 99%

Optical storage of circular airy beam in atomic vapor

Chang 常,

Yang 杨,

Ma 马

et al. 2024

Chinese Phys. B

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“…However, structure beams (e.g., optical images) obtained through simple amplitude modulation by optical instruments are susceptible to diffraction and can not preserve their spatial profiles during propagation. To overcome this, researchers propose some methods to generate quasi-non-diffraction beams via spatial spectrum engineering techniques assisted with some optimization algorithms such as genetic algorithm [19], iterative Fourier algorithm [20,21], differential evolution algorithm [22]. In 2020, A. Zannotti et al construct arbitrary non-diffraction caustic beams through amplitude and phase modulation of the Bessel beam in Fourier space [23].…”

Section: Introductionmentioning

confidence: 99%

Generation and characterization of customized perfect Laguerre-Gaussian beams with arbitrary profiles

Chen¹,

Wang²,

Yang³

et al. 2022

Preprint

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We experimentally demonstrate the generation of customized perfect Laguerre-Gaussian (PLG) beams whose intensity maxima localized around any desired curves. The principle is to act appropriate algebraic functions on the angular spectra of PLG beams. We characterize the propagation properties of these beams and compare them with non-diffraction caustic beams possessing the same intensity profiles. The results manifest that the customized-PLG beams can maintain their profiles during propagation and suffer less energy loss than the non-diffraction caustic beams, and hence are able to propagate a longer distance. This new structure beam would have potential applications in areas such as optical communication, soliton routing and steering, optical tweezing and trapping, atom optics, etc.

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“…Another prominent motional-induced effect is coherent diffusion. In the general light storage experiments associated with collinear probe-control configuration, coherent diffusion operates as a low-pass filter in the spatial frequency (SF) space (q-space) and wipes out the high SF components of the stored probe field [22][23][24]. For a scalar field or * wcy199202@gmail.com an optical image, the details of its spatial structure depend on the high SF components, and the loss of which would result in a blurry image.…”

Section: Introductionmentioning

confidence: 99%

Angular dependence of spatial frequency modulation in diffusion media

et al. 2022

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An optical field will undergo coherent diffusion when it is mapped into thermal-motioned atoms, e.g., in a slow or storage light process. As was demonstrated before, such diffusion effect is equivalent to a spatial low-pass filter attenuating the high spatial frequency (SF) components of the optical field. Here, employing electromagnetically induced transparency (EIT) based light storage in hot atomic vapor, we demonstrate that the angular deviation between the control and probe beams could be utilized as a degree of freedom to modulate the SF of the probe beam. The principle is to change the diffusion-induced low-pass filter into a band-pass filter, whose SF response can be tuned by varying the direction and magnitude of the angular deviation. Transverse multimode light fields, such as optical images and Laguerre-Gaussian modes are utilized to study such SF modulation. Our findings could be broadly applied to the fields of quantum information processing, all-optical image manipulation and imaging through diffusive media.

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Experimental investigation of light storage of diffraction-free and quasi-diffraction-free beams in hot atomic gas cell

Cited by 6 publications

References 39 publications

Optical storage of circular airy beam in atomic vapor

Optical storage of circular airy beam in atomic vapor

Generation and characterization of customized perfect Laguerre-Gaussian beams with arbitrary profiles

Angular dependence of spatial frequency modulation in diffusion media

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