Single optical tweezers based on elliptical core fiber

Zhang, Yu; Zhao, Li; Chen, Yunhao; Liu, Zhihai; Zhang, Yaxun; Zhao, Enming; Yang, Jun

doi:10.1016/j.optcom.2015.11.076

Cited by 19 publications

(4 citation statements)

References 23 publications

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“…Therefore, the orientation control of biological cells is extremely critical. Optical tweezers (OT) represent a versatile tool for microrobotic micromanipulation [ 158 , 159 , 160 , 161 , 162 ]. In order to avoid damage to living cells by shining laser light directly on them [ 163 ], microrobots controlled by OT can be used for manipulation of cells or organisms on a microscopic scale; thus, optical tweezers provide precise access to the microscopic world of bioscience.…”

Section: External Field Drivementioning

confidence: 99%

A Review of Single-Cell Microrobots: Classification, Driving Methods and Applications

Wang,

Chen,

et al. 2023

Micromachines

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Single-cell microrobots are new microartificial devices that use a combination of single cells and artificial devices, with the advantages of small size, easy degradation and ease of manufacture. With externally driven strategies such as light fields, sound fields and magnetic fields, microrobots are able to carry out precise micromanipulations and movements in complex microenvironments. Therefore, single-cell microrobots have received more and more attention and have been greatly developed in recent years. In this paper, we review the main classifications, control methods and recent advances in the field of single-cell microrobot applications. First, different types of robots, such as cell-based microrobots, bacteria-based microrobots, algae-based microrobots, etc., and their design strategies and fabrication processes are discussed separately. Next, three types of external field-driven technologies, optical, acoustic and magnetic, are presented and operations realized in vivo and in vitro by applying these three technologies are described. Subsequently, the results achieved by these robots in the fields of precise delivery, minimally invasive therapy are analyzed. Finally, a short summary is given and current challenges and future work on microbial-based robotics are discussed.

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Section: External Field Drivementioning

confidence: 99%

A Review of Single-Cell Microrobots: Classification, Driving Methods and Applications

Wang,

Chen,

et al. 2023

Micromachines

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“…Despite availability of a wide array of beam-transformation methodologies such as the non-diffraction beams (Airy beams, hollow beams, Bessel beams), technological implementation of optical tweezers remains challenging. They utilize various laser beam shaping devices for optical trapping such as prisms [11], liquid crystal spatial light modulators (LC-SLM) [12], digital micro-mirror devices [13], optical fibers [14] and deformable mirror [15]. Almost all these devices have their own limitations.…”

Section: Introductionmentioning

confidence: 99%

Beam Shaping by a Magnetic Fluid Deformable Mirror With Curved Trajectory for Optical Tweezer System

et al. 2021

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This article describes a novel optical tweezer system which utilizes a magnetic fluid deformable mirror (MFDM) with a wavefront sensor (WFS) and controller to produce a curved Bessel beam for manipulating an optically trapped micro-particle. The MFDM is proposed to control the wavefront phase of the laser beam since it offers the ability to produce a nearly perfect axicon in reflection. The working principle of the MFDM and its modeling and design processes are introduced. Then a decentralized control method is presented for the MFDM to generate the desired mirror surface shape, combing an axicon and an adjustable compensation phase profile that transforms the incident beam into a self-accelerating Bessel-like beam with curved trajectory. Using a prototype MFDM, an experimental optical tweezer system is set up to verify this optical micromanipulation method. The experimental results show the effectiveness of the proposed technique for the manipulation of optically trapped microparticles.INDEX TERMS Adaptive optics, beam shaping, Bessel beam, magnetic fluid deformable mirror, optical tweezer.

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“…For the phase plate or liquid crystal on silicon (LCOS) based mode division de-multiplexers 8 , 9 , optimization of spatial orientation of radially asymmetric mode is necessary in order to realize mode selective conversion and reduce the computation complexity of multi-input multi output (MIMO) processing simultaneously. Additionally, spatial rotation capability for radially asymmetric modes can provide a versatile tool for optical trapping and tweezers applications 10 , 11 . Recently, generation of cylindrical vector beam (CVB) by coherent superposition of two spatially orthogonal LP modes with high polarization purity has been demonstrated 12 .…”

Section: Introductionmentioning

confidence: 99%

All-fiber spatial rotation manipulation for radially asymmetric modes

Hong

et al. 2017

Sci Rep

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We propose and experimentally demonstrate spatial rotation manipulation for radially asymmetric modes based on two kinds of polarization maintaining few-mode fibers (PM-FMFs). Theoretical finding shows that due to successful suppression of both polarization and spatial mode coupling, the spatial rotation of radially asymmetric modes has an excellent linear relationship with the twist angle of PM-FMF. Both elliptical core and panda type FMFs are fabricated, in order to realize manageable spatial rotation of LP11 mode within ±360° range. Finally, we characterize individual PM-FMF based spatial orientation rotator and present comprehensive performance comparison between two PM-FMFs in terms of insertion loss, temperature sensitivity, linear polarization maintenance, and mode scalability.

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Single optical tweezers based on elliptical core fiber

Cited by 19 publications

References 23 publications

A Review of Single-Cell Microrobots: Classification, Driving Methods and Applications

A Review of Single-Cell Microrobots: Classification, Driving Methods and Applications

Beam Shaping by a Magnetic Fluid Deformable Mirror With Curved Trajectory for Optical Tweezer System

All-fiber spatial rotation manipulation for radially asymmetric modes

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