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Optical Trapping and Optical Micromanipulation XVIII最新文献

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Direct holographic measurement of torque and individual forces in ensembles of trapped particles 直接全息测量扭矩和单个力在捕获粒子的集合
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2596319
F. Strasser, S. Moser, M. Ritsch-Marte, G. Thalhammer
{"title":"Direct holographic measurement of torque and individual forces in ensembles of trapped particles","authors":"F. Strasser, S. Moser, M. Ritsch-Marte, G. Thalhammer","doi":"10.1117/12.2596319","DOIUrl":"https://doi.org/10.1117/12.2596319","url":null,"abstract":"","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129159084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical manipulation mechanisms of one micron-size gold particles 一微米大小金颗粒的光学操纵机制
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594137
Yuhua Yang, Y. Sheng
{"title":"Optical manipulation mechanisms of one micron-size gold particles","authors":"Yuhua Yang, Y. Sheng","doi":"10.1117/12.2594137","DOIUrl":"https://doi.org/10.1117/12.2594137","url":null,"abstract":"","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132265084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MOSH-DDA: Meta-surface optical trapping and guiding of spherical nanoparticles MOSH-DDA:球形纳米粒子的超表面光捕获和引导
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594017
Michael J. O'Donnell, S. Hanna
{"title":"MOSH-DDA: Meta-surface optical trapping and guiding of spherical nanoparticles","authors":"Michael J. O'Donnell, S. Hanna","doi":"10.1117/12.2594017","DOIUrl":"https://doi.org/10.1117/12.2594017","url":null,"abstract":"In this paper, the use of a 2D meta-surface for the optical trapping and directed movement of spherical nanoparticles is explored. Using the Discrete Dipole Approximation, we calculate the optical forces that occur when a spherical nanoparticle moves across a surface constructed of tessellated equilateral triangles. We calculate that given sufficient optical power, choice of optical materials, and wavelengths, it is possible to use a meta-surface to guide micron sized particles in a direction dictated by the geometry of the surface. Furthermore, we suggest several experimental methods of verifying the results which are also discussed in detail.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132387593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-invasive micromechanical sensing and real-time 3D imaging of in vitro biological systems. 体外生物系统的无创微机械传感和实时三维成像。
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595357
Tania Mendonca, A. Matheson, Katarzyna Lis-Slimak, Akosua B. Anane‐Adjei, C. Alexander, Cathy L. R. Merry, L. Paterson, M. Tassieri, P. Dalgarno, A. Wright
{"title":"Non-invasive micromechanical sensing and real-time 3D imaging of in vitro biological systems.","authors":"Tania Mendonca, A. Matheson, Katarzyna Lis-Slimak, Akosua B. Anane‐Adjei, C. Alexander, Cathy L. R. Merry, L. Paterson, M. Tassieri, P. Dalgarno, A. Wright","doi":"10.1117/12.2595357","DOIUrl":"https://doi.org/10.1117/12.2595357","url":null,"abstract":"We present a bespoke new instrument for micro-mechanical sensing and imaging of 3D cell cultures. Our instrument combines optical tweezers and multiplane imaging for 3D optical microrheology, with light sheet microscopy for 3D fluorescence imaging. This integrated system allows us to visualise cells in their 3D environment while also mapping the physical properties of the extracellular matrix local to the cells. Such a holistic approach will allow for a wide range of fundamental questions in the life sciences to be addressed by effectively sensing the micro-world from a cell’s perspective.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122978604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical vortex induced forward transfer 光涡旋诱导前向转移
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594399
T. Omatsu
{"title":"Optical vortex induced forward transfer","authors":"T. Omatsu","doi":"10.1117/12.2594399","DOIUrl":"https://doi.org/10.1117/12.2594399","url":null,"abstract":"Optical vortices and circularly polarized light fields carry an orbital angular momentum (OAM), associated with their helical wavefronts, and a spin angular momentum (SAM), owing to their helical electric field. \u0000We have found that the optical vortices twist the irradiated materials to form nano/micron scale chiral or helical structures with the aid of SAM, manifesting the trajectory of their helical wavefronts. Going beyond the conventional optical trapping and manipulation, such interactions between optical vortices and materials should open the door towards new fundamental sciences and advanced technologies. \u0000Here we report on an entirely exotic interaction between optical vortices and materials, in which the optical vortex allows the ejection of a pico-liter scale spinning droplet from a donor film via laser induced forward transfer processes. \u0000This phenomenon will potentially offer us new physical insights and the next generation printing technologies to develop advanced photonic/plas","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116659107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Light-induced pattern formation of colloidal particle suspensions driven by optical feedback 由光反馈驱动的胶体颗粒悬浮液的光诱导模式形成
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594192
V. Bobkova, Alexander Goenner, C. Denz
{"title":"Light-induced pattern formation of colloidal particle suspensions driven by optical feedback","authors":"V. Bobkova, Alexander Goenner, C. Denz","doi":"10.1117/12.2594192","DOIUrl":"https://doi.org/10.1117/12.2594192","url":null,"abstract":"We investigate the nonlinear behavior of a colloidal particle suspension driven by light in an optical single feedback system. We show numerically and experimentally that the process of transverse pattern formation is fundamentally similar to self-organized dynamics in volumetric media as for instance photorefractive or liquid crystals, but obtains, however, an additional degree of complexity due to the stochastic nature of colloidal suspensions. Additionally, we demonstrate experimentally the ability to control the formation of emerging patterns by sculpting the Fourier spectrum of the optical system. Thus, we extend a deeply studied feedback configuration by an ensemble of soft-matter particles and will present insights into this fascinating field of self-driven light-matter interaction.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"617 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130218200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
5D cooling and torque detection with optically levitated nanoparticles 光学悬浮纳米粒子的5D冷却和扭矩检测
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595487
Tongcang Li
{"title":"5D cooling and torque detection with optically levitated nanoparticles","authors":"Tongcang Li","doi":"10.1117/12.2595487","DOIUrl":"https://doi.org/10.1117/12.2595487","url":null,"abstract":"An optically levitated nonspherical particle in a vacuum is great for torque sensing and rotational quantum mechanics. Recently, we optically levitated silica nanodumbbells in a vacuum and drove them to rotate beyond 5 GHz. With an optically levitated nanorotor, we demonstrated a torque sensor with a record-high sensitivity [Nature Nanotechnology, 15, 89 (2020)]. Such an ultrasensitive torque sensor will have the potential to detect the long-sought quantum vacuum friction. We also demonstrated 5D cooling and observed nonlinear dynamics of an optically levitated nanodumbbell in a vacuum. This work is an important step towards full quantum control of the rigid-body motion of a levitated nonspherical particle.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130238917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self-adjusted counter-propagating intra cavity optical trapping 自调节反传播腔内光捕获
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594480
F. Kalantarifard, G. Volpe, P. Elahi
{"title":"Self-adjusted counter-propagating intra cavity optical trapping","authors":"F. Kalantarifard, G. Volpe, P. Elahi","doi":"10.1117/12.2594480","DOIUrl":"https://doi.org/10.1117/12.2594480","url":null,"abstract":"We demonstrate a novel intracavity optical trapping approach based on a self-adjusted counter propagation beam. In this configuration, the trapping part is placed within a backward pumping fiber ring cavity. The particle in this setup is trapped by two counter propagation beams including pump, from top to bottom and signal from bottom to top. This trapping scheme benefits from the cavity design in which the individual beams are adjusted depending on the displacement of the trapped particle. When the particle is in the center of the trap and turns the laser signal off, the pump then automatically turns on and this keeps the particle in the trap position. We believe this approach can find its applications in the trapping of submicron particles where the previous intracavity OTs were not able to trap, especially biological samples that are subjected to photo-damage due to the intensity of laser light.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124554579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trapping-assisted nanopore sensing of molecular biomarkers 分子生物标志物的捕集辅助纳米孔传感
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594034
H. Schmidt, A. Hawkins, M. Sampad, Han Zhang, M. Stott
{"title":"Trapping-assisted nanopore sensing of molecular biomarkers","authors":"H. Schmidt, A. Hawkins, M. Sampad, Han Zhang, M. Stott","doi":"10.1117/12.2594034","DOIUrl":"https://doi.org/10.1117/12.2594034","url":null,"abstract":"Integrated nanopore sensors enable label-free electrical detection of single molecular biomarkers using modulations in ionic current across a nanoscale opening in a solid-state membrane. Optical trapping can dramatically increase the rate of molecular detection and, thus, significantly speed up the sensing process. This is accomplished by optical delivery of microbeads that carry molecular targets that are specifically bound to their surface. Once trapped at the nanopore location, targets are released from the carrier bead and drawn through the pore by the large electric field that is present right at the pore location. We review the principle and implementation of this approach on an optofluidic chip. We report over 1000x improvement in sensing time and the application of these devices to detection of different molecular biomarkers and for infectious disease diagnosis of clinical samples.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134069112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial aggregation in optical traps 光阱中的细菌聚集
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2594475
Phillip Digal, Sanaz Mohammadi, Sattar Taheri-Araghi, A. Bezryadina
{"title":"Bacterial aggregation in optical traps","authors":"Phillip Digal, Sanaz Mohammadi, Sattar Taheri-Araghi, A. Bezryadina","doi":"10.1117/12.2594475","DOIUrl":"https://doi.org/10.1117/12.2594475","url":null,"abstract":"In this work, we study how to grow biofilms and control their growth with optical trapping techniques. In low nutrition media Bacillus subtilis (NCIB 3610) secretes extracellular polymeric substance (EPS), glue-like substance, and ultimately form a biofilm. To observe cells aggregation into clusters and the dynamics of controlled biofilm formation, we utilize an optical tweezers system built around a commercial inverted microscope. A highly focused near-infrared laser beam generated by our optical tweezers attracts cells toward the center of the laser beam, where they are trapped into clusters.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116131392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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