Creation of an anti-imaging system using binary optics

Wang, Haifeng; Jun, Lin; Zhang, Dawei; Wang, Yang; Gu, Miṅ; Urbach, H. P.; Gan, Fuxi; Zhuang, Songlin

doi:10.1038/srep33064

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…Optical bottle beams 1 – 3 , which possess a central zero-intensity core surrounded by three-dimensional (3D) bright regions, provide numerous applications, such as optical tweezers for atom trapping and light-absorptive particle guiding 4 – 11 , fluorescence microscopes with high 3D spatial resolution 12 , 13 and the cloaking of reflection, scattering or transmission from an object 14 , 15 . Such applications rely heavily on the generation of bottle beams with a well-isolated 3D zero-intensity dark core, i.e.…”

Section: Introductionmentioning

confidence: 99%

Bottle beam generation from a frequency-doubled Nd:YVO4 laser

Tung

Miyamoto

et al. 2018

Sci Rep

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We demonstrate, for the first time, the direct generation of a bottle beam with a well-isolated three-dimensional zero-intensity dark core (high potential barrier) from a compact intracavity frequency-doubled Nd:YVO4 laser with a nearly hemispherical cavity. We also numerically calculate the physical properties of the generated bottle beam using a coherent superposition of a series of frequency-locked Laguerre–Gaussian modes.

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Section: Introductionmentioning

confidence: 99%

Bottle beam generation from a frequency-doubled Nd:YVO4 laser

Tung

Miyamoto

et al. 2018

Sci Rep

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“…Owing to its unique light intensity distribution, it can be used as an effective tool for erasing beams in super-resolution fluorescence microscopy [1][2][3] and capturing low-refractive index particles [4,5]. It has found wide applications in fields such as optical imaging [6][7][8], laser machining [9], optical trapping [10][11][12][13][14], and optical cloaking [15,16]. So far, scholars have proposed numerous methods for generating optical cages.…”

Section: Introductionmentioning

confidence: 99%

Generation of optical cage arrays with tunable dark regions based on magneto-electric dipole antennas

Xie,

Yu,

Zeng

et al. 2024

Phys. Scr.

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Optical cages have recently received extensive research and attention due to their potential applications in optical cloaking, microscopic imaging, and trapping particles or atoms. However, the creation of a controllable spatial multi-optical cage array with tunable dark regions comes to a great challenge, which limits the effectiveness of the above applications. To this end, we analyze the radiation pattern of a reverse-focused magneto-electric dipole antenna in a 4Pi optical focusing system. It is found that three-dimensional (3D) optical cages with different dark regions can be produced by using magneto-electric dipoles with different combination coefficients K. Numerical results indicate that the value of K can be employed to adjust the shapes and sizes of the dark regions, and specifically, when K equals 0.8209, it allows the realization of a perfectly spherical dark region with null central intensity and minimal volume. Furthermore, it is possible to flexibly create spatial multi-optical cage arrays with specified orientations, adjustable numbers, and controllable positions by constructing spatial antenna arrays according to practical requirements. This work may enhance its ability to meet the distinct requirements for optical cages across diverse fields and catalyze the advancement of multi-particle optical trapping and manipulation.

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“…On the other hand, optical cages are beams composed of a darkness volume surrounded by higher intensity light barriers, which have important applications in optical trapping [44][45][46][47], optical imaging [48,49], and optical cloaking [50,51]. Over the past years, several schemes have been developed to realize optical cages, such as diffractive optical element [48,51] and special incident vector beam [52,53].…”

Section: Introductionmentioning

confidence: 99%

Multiple optical cages generated by focusing a Laguerre-cosine-Gaussian correlated Schell-model beam

Zhu

Tang

et al. 2017

Laser Phys.

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We introduce a new kind of random stationary, scalar beam named Laguerre-cosine-Gaussian correlated Schell-model (LcGCSM) beam whose spectral degree of coherence (SDOC) is a Gaussian function modulated by both non-conventional Laguerre-and cosine-type factors. The analytical expressions for the cross-spectral density of a LcGCSM beam propagating through a paraxial ABCD optical system are derived. The intensity distributions of such beams focused through a thin lens are illustrated numerically. It is found that a LcGCSM beam exhibits selfsplitting and self-shaping properties during propagation, evolving into multiple optical cages near the focal region. By directly modulating the spatial structure of the SDOC in the source plane, the characteristics of the optical cages derived from the proposed LcGCSM beams can be adjusted flexibly. Moreover, we demonstrate that these nontrivial focusing properties of a LcGCSM beam can be well elucidated with the combination effect of individual merits associated with each non-conventional SDOC component of the entire SDOC. Therefore, our results provide a new route for generating and controlling multiple optical cages, and will be useful for trapping multiple particles, guiding multiple atoms and optical communications.

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Creation of an anti-imaging system using binary optics

Cited by 10 publications

References 33 publications

Bottle beam generation from a frequency-doubled Nd:YVO4 laser

Bottle beam generation from a frequency-doubled Nd:YVO4 laser

Generation of optical cage arrays with tunable dark regions based on magneto-electric dipole antennas

Multiple optical cages generated by focusing a Laguerre-cosine-Gaussian correlated Schell-model beam

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