All-dielectric silicon metalens for two-dimensional particle manipulation in optical tweezers

Chantakit, Teanchai; Schlickriede, Christian; Sain, Basudeb; Meyer, Fabian; Weiß, Thomas; Chattham, Nattaporn; Zentgraf, Thomas

doi:10.1364/prj.389200

Cited by 67 publications

(46 citation statements)

References 35 publications

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“…The related insertion loss may be accounted for by the Fresnel loss associated with the interfaces involving the fiber, epoxy, SiO 2 , and air. In view of its conspicuous features, including polarization‐mediated functionality, miniaturized footprint, and enhanced optical throughput, the proposed FMT is expected to enable the development of optical trapping, [ 36 ] optical metrology, optical processors, [ 37 ] and optical communication. [ 38 ]…”

Section: Resultsmentioning

confidence: 99%

All‐Dielectric Fiber Meta‐Tip Enabling Vortex Generation and Beam Collimation for Optical Interconnect

Zhou

Lee

Gao

et al. 2021

Laser & Photonics Reviews

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“Lab‐on‐fiber” technology, which combines the unique merits of optical fibers with nanophotonic platforms, has received significant investigation due to its profound ability to control light at the nanoscale, which has significantly boosted the functionalities of conventional fibers. Previous plasmonic‐based fiber meta‐tips (FMTs) have been inhibited by the intrinsic ohmic losses of the metallic structures, resulting in limited light manipulation efficiency. In addition, to become prominent candidates for integrated photonics, their functional diversity needs to be enhanced. In this study, an FMT constructed by tethering an all‐dielectric metasurface to a single‐mode fiber for bifunctional light manipulation is implemented. Distinct light manipulation, including vortex generation and beam collimation, is executed by tailoring the phase profiles encoded in the metasurface for transverse electric and transverse magnetic polarized light. To build the proposed FMT, a polarization‐selective metasurface is first created via lithography nanofabrication and then attached to an optical fiber with the aid of a vision system. Moreover, as a proof‐of‐concept, the feasibility of exploiting the established FMT for applications such as optical interconnects is demonstrated. The resulting fiber optics and metasurface‐based meta‐tip represent a major breakthrough in the lab‐on‐fiber technology roadmap for applications such as optical communication, optical trapping, and biological sensing.

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Section: Resultsmentioning

confidence: 99%

All‐Dielectric Fiber Meta‐Tip Enabling Vortex Generation and Beam Collimation for Optical Interconnect

Zhou

Lee

Gao

et al. 2021

Laser & Photonics Reviews

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“…At the operating wavelength of 980 nm, the concentric circular structure offers a large NA (~0.85), a focal length (~8 μm), and a small written width (~200 nm). In addition to the discussion of metalens-incorporated optical tweezer 51 , the unique properties of the metalens-based fiber tip are demonstrated by optically trapping freely diffusing micro-objects in water (NA ~0.88) 52 (Fig. 5c ).…”

Section: Progress and Challenges For Typical Performancesmentioning

confidence: 99%

Dielectric metalens for miniaturized imaging systems: progress and challenges

et al. 2022

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Lightweight, miniaturized optical imaging systems are vastly anticipated in these fields of aerospace exploration, industrial vision, consumer electronics, and medical imaging. However, conventional optical techniques are intricate to downscale as refractive lenses mostly rely on phase accumulation. Metalens, composed of subwavelength nanostructures that locally control light waves, offers a disruptive path for small-scale imaging systems. Recent advances in the design and nanofabrication of dielectric metalenses have led to some high-performance practical optical systems. This review outlines the exciting developments in the aforementioned area whilst highlighting the challenges of using dielectric metalenses to replace conventional optics in miniature optical systems. After a brief introduction to the fundamental physics of dielectric metalenses, the progress and challenges in terms of the typical performances are introduced. The supplementary discussion on the common challenges hindering further development is also presented, including the limitations of the conventional design methods, difficulties in scaling up, and device integration. Furthermore, the potential approaches to address the existing challenges are also deliberated.

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“…The nontrivial behaviors of phase give rise to diverse intriguing phenomena, opening up the area of singular optics. [1] Optical vortices (known as singular light beams) have been used in many fields ranging from particle manipulation [2,3] to quantum information [4,5] due to their unique optical properties. The singularity structure of a wavefront plays an important role in the physical properties of vortex beams.…”

Section: Introductionmentioning

confidence: 99%