Vectorial wavefront holography based on a polarisation-insensitive hologram

Ren, Haoran

doi:10.1088/2040-8986/ac6882

Cited by 5 publications

(5 citation statements)

References 32 publications

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“…The specific amplitude and phase distributions for the polarization states along x and y directions are displayed in Supplementary Note 12. Based on vectorial diffraction theory [63][64][65] , we numerically simulated the diffraction pattern of the vector beam in a Fourier plane, with the polarization components along the x and y directions. To satisfy the desired amplitude and phase distributions, we selected 3D nanopillars with matched optical responses based on Eq.…”

Section: Arbitrarily Structured Light On Slgmsmentioning

confidence: 99%

Metafiber transforming arbitrarily structured light

Li,

Wieduwilt,

Wendisch

et al. 2023

Nat Commun

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Structured light has proven useful for numerous photonic applications. However, the current use of structured light in optical fiber science and technology is severely limited by mode mixing or by the lack of optical elements that can be integrated onto fiber end-faces for wavefront engineering, and hence generation of structured light is still handled outside the fiber via bulky optics in free space. We report a metafiber platform capable of creating arbitrarily structured light on the hybrid-order Poincaré sphere. Polymeric metasurfaces, with unleashed height degree of freedom and a greatly expanded 3D meta-atom library, were 3D laser nanoprinted and interfaced with polarization-maintaining single-mode fibers. Multiple metasurfaces were interfaced on the fiber end-faces, transforming the fiber output into different structured-light fields, including cylindrical vector beams, circularly polarized vortex beams, and arbitrary vector field. Our work provides a paradigm for advancing optical fiber science and technology towards fiber-integrated light shaping, which may find important applications in fiber communications, fiber lasers and sensors, endoscopic imaging, fiber lithography, and lab-on-fiber technology.

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Section: Arbitrarily Structured Light On Slgmsmentioning

confidence: 99%

Metafiber transforming arbitrarily structured light

Li,

Wieduwilt,

Wendisch

et al. 2023

Nat Commun

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“…Therefore, we attempt to perform the detection behavior of arbitrary incident polarization states by selecting the tiny spot contained in the E 45component. The distribution function of a Laguerre-Gaussian beam transmitted along the z-direction at a certain defined transverse plane z = f can be expressed as [47][48][49][50],…”

Section: Resultsmentioning

confidence: 99%

All-dielectric terahertz metasurfaces for arbitrary linear polarization detection

Xu,

Li,

et al. 2023

J. Opt.

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The polarization state, an intrinsic property of electromagnetic (EM) waves, plays a key role in determining the mechanism of light-matter interactions. Recently, the bulky elements for evaluating polarization states have been miniaturized by using metasurfaces. However, determining arbitrary linear polarization states from vortex beams (VBs) generated by metasurfaces is quite challenging. Here, a general design of all-silicon quasi-periodic arrays based on polarization multiplexing technology is proposed, which can be used for the detection of arbitrary incident linear polarization (LP) state. By embedding independent helical phase profiles in two orthogonal LP channels, the generated interference spot at the predesigned focal plane is resolvable in a proper polarized direction. Benefitting from the establishment of a parametric theoretical model, the evolution of the incident polarization can be determined using key parameters defined on the pixelated focal plane. The proposed method can flexibly determine the polarization state of incident terahertz (THz) waves, which has great potential in remote sensing, high-resolution imaging, and data communication.

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“…In another development under polarization holography, vectorial wavefront holography is proposed using the wavefront shaping of a structured vector beam [59].…”

Section: Polarization Holographymentioning

confidence: 99%

Spatial Light Modulators and Their Applications in Polarization Holography

Tiwari¹,

Bisht²

2023

Holography - Recent Advances and Applications

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Liquid crystal spatial light modulators (LC-SLMs) have gained substantial interest of the research fraternity due to their remarkable light modulation characteristics in modern imaging applications. Replacing the conventional optical elements from the SLM-based computer-generated holograms (CGHs) is a trending approach in modern digital holographic applications due to the optimized phase shift depending on the phase modulation features of SLMs. Apparently; SLMs serve a crucial role in the experimental implementation of digital holographic techniques. However, the resolution of the CGHs are sometimes limited by the structural discrepancies (fill factor, spatial anomalies, refresh rate, etc.) of SLM. Therefore, it is recommended to calibrate the modulation characteristics of SLMs prior to their implementation for imaging applications. This chapter provides comprehensive literature (review) of the LC-SLMs along with their major calibration methods. In addition, recent interesting applications of LC-SLMs have been discussed thoroughly within the framework of polarization holography.

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Vectorial wavefront holography based on a polarisation-insensitive hologram

Cited by 5 publications

References 32 publications

Metafiber transforming arbitrarily structured light

Metafiber transforming arbitrarily structured light

All-dielectric terahertz metasurfaces for arbitrary linear polarization detection

Spatial Light Modulators and Their Applications in Polarization Holography

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