发布求助
文献互助 智能选刊 最新文献

Optical Trapping and Optical Micromanipulation XVIII最新文献

筛选
英文 中文
Solution exchange techniques applied to optical tweezers studies of viral DNA packaging 溶液交换技术应用于光镊研究病毒DNA包装
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-03 DOI: 10.1117/12.2595468
Brandon Rawson, Mariam Ordyan, Douglas E. Smith
{"title":"Solution exchange techniques applied to optical tweezers studies of viral DNA packaging","authors":"Brandon Rawson, Mariam Ordyan, Douglas E. Smith","doi":"10.1117/12.2595468","DOIUrl":"https://doi.org/10.1117/12.2595468","url":null,"abstract":"","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132621986","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 nanotweezers based on plasmonic apertures designed by algorithm 基于算法设计的等离子体孔径光学纳米镊子
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595395
K. Crozier
{"title":"Optical nanotweezers based on plasmonic apertures designed by algorithm","authors":"K. Crozier","doi":"10.1117/12.2595395","DOIUrl":"https://doi.org/10.1117/12.2595395","url":null,"abstract":"We use machine learning (simulated annealing) to design plasmonic nanoapertures that function as optical nanotweezers. The nanoapertures have irregular shapes that are chosen by our algorithm. We present electromagnetic simulations that show that these produce stronger field enhancements and extraction energies than nanoapertures comprising double nanoholes with the same gap geometry. We show that performance is further improved by etching one or more rings into the gold surrounding the nanoaperture. We provide a direct comparison between our design and work that is representative of the state of the art in plasmonic nanotweezers at the time of writing. Lastly, we provide experimental results that compare our algorithm-designed structure to a double nanohole design","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"24 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":"131814429","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 nanoparticles with optical refrigeration 利用光学制冷捕获纳米粒子
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595047
Jingang Li, Yuebing Zheng
{"title":"Trapping nanoparticles with optical refrigeration","authors":"Jingang Li, Yuebing Zheng","doi":"10.1117/12.2595047","DOIUrl":"https://doi.org/10.1117/12.2595047","url":null,"abstract":"We develop a new type of optical tweezers that exploits thermophoresis and solid-state optical refrigeration to trap and manipulate nanoparticles at the laser-generated cold region. Localized optical refrigeration of a solid substrate creates a temperature gradient field to trap nanoparticles and molecules with common thermophobic nature at the laser beam center by thermophoresis. The trapping of objects at the low-temperature region can effectively avoid photothermal degradation. In addition, compared to conventional optical tweezers, our tweezers require a weakly focused laser beam with a lower optical intensity to trap fragile objects, which can reduce the photodamages.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"4 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":"128890322","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
Structured light to miniaturize optical micromanipulation 结构光使光学显微操作小型化
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2596522
A. Asadollahbaik, S. Thiele, Aashutosh Kumar, K. Weber, Johannes Drozella, F. Sterl, M. Heymann, A. Herkommer, J. Fick, H. Giessen
{"title":"Structured light to miniaturize optical micromanipulation","authors":"A. Asadollahbaik, S. Thiele, Aashutosh Kumar, K. Weber, Johannes Drozella, F. Sterl, M. Heymann, A. Herkommer, J. Fick, H. Giessen","doi":"10.1117/12.2596522","DOIUrl":"https://doi.org/10.1117/12.2596522","url":null,"abstract":"Optical trapping is the science of holding and immobilizing particles and cells, for further manipulation and spectroscopic studies. Enhancing the application of optical trapping is limited by size and flexibility of this tool, mostly limited to high numerical aperture objectives. In this work, we show the potential of using structured light to further enhance the capabilities of optical fibres as optical tweezers, to be used for applications in which space and throughput are of importance. Using femtosecond two photon direct laser writing, we produce accurately designed micro-optic probes at the tip of optical fibres to enhance the light field for trapping single particles as well as single live cells. Enhanced trapping efficiency, ease of transporting trapped particle, and potential of performing wide spectrum spectroscopy on the trapped entity are the advantages of the present approach.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"9 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":"122351518","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
Improved tapping mode photonic force microscopy 改进的轻敲模式光子力显微镜
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2597644
Matthias Allkemper, A. Rohrbach
{"title":"Improved tapping mode photonic force microscopy","authors":"Matthias Allkemper, A. Rohrbach","doi":"10.1117/12.2597644","DOIUrl":"https://doi.org/10.1117/12.2597644","url":null,"abstract":"Photonic Force Microscopy (PFM) uses optically trapped particles to measure fluctuation based forces and potential landscapes. This feature makes it a very soft probing technique that is well suited to investigate surface interactions with biological samples. In addition, PFMs can be used in scan mode to create surface-profiles with a resolution better than the optical diffraction limit. In this talk we present an improved intermittent contact (tapping) mode PFM and a revised data analysis for more detailed surface height profiles.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"4 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":"122540668","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
Opto-thermophoresis: from fundamental to applications 光热电泳:从基础到应用
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2593576
Linhan Lin
{"title":"Opto-thermophoresis: from fundamental to applications","authors":"Linhan Lin","doi":"10.1117/12.2593576","DOIUrl":"https://doi.org/10.1117/12.2593576","url":null,"abstract":"Low-power and non-invasive optical manipulation of tiny objects is important in both material science and life science. Harnessing the high-efficiency light-to-heat conversion and the thermophoretic migration under a temperature gradient, we explore the opto-thermo-mechanic coupling during light-matter interaction and develop an indirect optical manipulation technique termed opto-thermophoresis, which features low operation power and simple optics. Based on this concept, we development new tools such as opto-thermophoretic tweezers, printers, tractors, and motors. Further, we demonstrate these optical tools in different fields, such as biomedical manipulation, bio-sensing, and reconfigurable optics.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"44 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":"122888588","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
Experiencing the micro-world: a cell’s perspective 体验微观世界:细胞的视角
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595901
A. Wright, Tania Mendonca, Cathy L. R. Merry, Cameron Alexander, Katarzyna Lis-Slimak, Akosua B. Anane‐Adjei, L. Paterson, P. Dalgarno, A. Matheson, M. Tassieri
{"title":"Experiencing the micro-world: a cell’s perspective","authors":"A. Wright, Tania Mendonca, Cathy L. R. Merry, Cameron Alexander, Katarzyna Lis-Slimak, Akosua B. Anane‐Adjei, L. Paterson, P. Dalgarno, A. Matheson, M. Tassieri","doi":"10.1117/12.2595901","DOIUrl":"https://doi.org/10.1117/12.2595901","url":null,"abstract":"This talk will introduce a novel, recently developed, instrument that combines light sheet microscopy, optical trapping and multiplane imaging in a single platform capable of imaging 3D cultures of live cell over long time courses and mapping to these images the local mechanical properties of the material surrounding the cells. The presentation will highlight the wide-range of samples this instrument can study and discuss the analysis involved to evaluate the rheological properties of the material when either the trapping potential or the samples are non-isotropic.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"20 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":"132200841","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
Parametric feedback cooling of a rotating birefringent microsphere in a vacuum optical trap 真空光阱中旋转双折射微球的参数反馈冷却
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2598892
Y. Arita, S. Simpson, G. Bruce, P. Zemánek, K. Dholakia
{"title":"Parametric feedback cooling of a rotating birefringent microsphere in a vacuum optical trap","authors":"Y. Arita, S. Simpson, G. Bruce, P. Zemánek, K. Dholakia","doi":"10.1117/12.2598892","DOIUrl":"https://doi.org/10.1117/12.2598892","url":null,"abstract":"We demonstrate parametric feedback cooling of a levitated birefringent microsphere held in a circularly polarised Gaussian trap. We show efficient cooling of the birefringent microsphere to the temperature less than a millikelvin, which is orders of magnitude lower than that of a silica counterpart. We reveal that the transverse spin momentum present in circularly polarised light plays a role in the trapped particle dynamics, which exhibits a range of nonequilibrium phenomena, namely, (i) biased stochastic motion, (ii) coupling of mechanical modes, (iii) nonconservative rotation-translation coupling. We further discuss the temperature of the trapped particle in a nonconservative vacuum optical trap.","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":"128515372","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 levitation and manipulation of nano-objects 纳米物体的光学悬浮和操纵
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2595845
M. Nikkhou, Yanhui Hu, James A. Sabin, J. Millen
{"title":"Optical levitation and manipulation of nano-objects","authors":"M. Nikkhou, Yanhui Hu, James A. Sabin, J. Millen","doi":"10.1117/12.2595845","DOIUrl":"https://doi.org/10.1117/12.2595845","url":null,"abstract":"We present a clean, vacuum compatible method for loading nanoparticles into optical traps, based on laser-induced acoustic desorption (LIAD). We investigate the effect of the particle loading conditions and the optical trap power on trapping efficiency for an optical standing wave trap in vacuum. Furthermore, cooling all translational and rotational degrees of freedom of a levitated particle with anisotropic susceptibility is demonstrated. A silicon nanorod is trapped in the standing wave field in ultra-high vacuum. Due to the anisotropy of the susceptibility tensor, the nanorod has an enhanced interaction with the light field as compared to a spherical particle of the same volume. These non-spherical nanoparticles are also sensitive to the polarization of the light. We aim to cool the librational motion of the particle by controlling the polarization of the trapping light field and explore whether manipulation via polarization will produce more efficient cooling than other methods.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"74 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":"127384010","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
Fast evaporation of optically levitated droplets seized by Mie scattering and whispering gallery modes 通过Mie散射和低语廊模式捕获的光学悬浮液滴的快速蒸发
Optical Trapping and Optical Micromanipulation XVIII Pub Date : 2021-08-01 DOI: 10.1117/12.2593659
J. Marmolejo, D. Hanstorp
{"title":"Fast evaporation of optically levitated droplets seized by Mie scattering and whispering gallery modes","authors":"J. Marmolejo, D. Hanstorp","doi":"10.1117/12.2593659","DOIUrl":"https://doi.org/10.1117/12.2593659","url":null,"abstract":"The evaporation of liquid droplets was measured using a counter-propagating optical trap where trapping is stable from 6 um down to complete evaporation. The droplets' Mie scattering was used to calculate their size as they evaporated exponentially during 5-10 s. Simultaneously, the scattering intensity was recorded and a full Whispering Gallery Mode spectrum with around 100 resonances was observed, providing an alternative higher resolution measurement of the evaporation process. Droplets of different solutions were readily evaporated at room temperature and pressure. Importantly, this technique imposes no special requirement on the environment. \u0000It could be expanded to study evaporations of other liquids or in different humidities, temperatures, and pressures.","PeriodicalId":311295,"journal":{"name":"Optical Trapping and Optical Micromanipulation XVIII","volume":"1 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":"130014205","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书