We provide a toolbox for the calculation of optical forces and torques on dielectric particles in the geometrical optics limit.
我们提供了一个计算几何光学极限下介电粒子的光力和扭矩的工具箱。
{"title":"Computational toolbox for optical tweezers in the geometrical optics regime","authors":"A. Callegari, M. Mijalkov, A. B. Gököz, G. Volpe","doi":"10.1364/OMA.2019.AT3E.6","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT3E.6","url":null,"abstract":"We provide a toolbox for the calculation of optical forces and torques on dielectric particles in the geometrical optics limit.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83478681","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}
We investigate, using transfer matrix and Mie calculations, to what extent the zero-backscattering Kerker condition affects the radiation pressure and thus the optical trap stability for silicon particles using realistic optical tweezing parameters.
{"title":"Optical Forces and the First Kerker Condition","authors":"Nils Odebo Länk, P. Johansson, M. Käll","doi":"10.1364/OMA.2019.AT3E.4","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT3E.4","url":null,"abstract":"We investigate, using transfer matrix and Mie calculations, to what extent the zero-backscattering Kerker condition affects the radiation pressure and thus the optical trap stability for silicon particles using realistic optical tweezing parameters.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88034087","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}
M. Donato, A. Foti, S. Bernatová, O. Samek, P. Zemánek, R. Gillibert, P. Gucciardi, O. Maragò
Optical forces are used to position and aggregate nanoparticles for different applications. In particular, plasmonic enhanced optical forces are exploited to direct gold nanorods surrounded by biomolecules to create hot-spots on demand in a liquid buffered environment. This enables protein detection at the 10 nM level. Furthermore, optical forces on liquid phase exfoliated layered materials (hBN, MoS2, WS2) are studied and used to push and aggregate nanostructures in specific patterns.
{"title":"Optical Force Positioning and Aggregation of Nanoparticles","authors":"M. Donato, A. Foti, S. Bernatová, O. Samek, P. Zemánek, R. Gillibert, P. Gucciardi, O. Maragò","doi":"10.1364/OMA.2019.AW4E.5","DOIUrl":"https://doi.org/10.1364/OMA.2019.AW4E.5","url":null,"abstract":"Optical forces are used to position and aggregate nanoparticles for different applications. In particular, plasmonic enhanced optical forces are exploited to direct gold nanorods surrounded by biomolecules to create hot-spots on demand in a liquid buffered environment. This enables protein detection at the 10 nM level. Furthermore, optical forces on liquid phase exfoliated layered materials (hBN, MoS2, WS2) are studied and used to push and aggregate nanostructures in specific patterns.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86030721","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}
Pub Date : 2019-04-15DOI: 10.1364/BODA.2019.JT4A.11
Nancy E Ruiz-Uribe, S. Ahn, C. Schaffer
We measured flow speeds from cortical brain arterioles, venules, and capillaries in mice using third harmonic generation from red blood cells up to 1 mm deep and determined the effect of dextran on blood flow.
{"title":"Label Free Imaging of Cortical Blood Vessels Using Third Harmonic Generation (THG) Microscopy","authors":"Nancy E Ruiz-Uribe, S. Ahn, C. Schaffer","doi":"10.1364/BODA.2019.JT4A.11","DOIUrl":"https://doi.org/10.1364/BODA.2019.JT4A.11","url":null,"abstract":"We measured flow speeds from cortical brain arterioles, venules, and capillaries in mice using third harmonic generation from red blood cells up to 1 mm deep and determined the effect of dextran on blood flow.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90196624","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}
In this work, we introduce a new type of optical micromanipulation platform that we call patterned optoelectronic tweezers (p-OET). In p-OET devices, the photoconductive layer (that is contiguous in a conventional OET device) is patterned, forming regions in which the electrode layer is locally exposed. We demonstrate that the micro-patterns in the photoconductive layer are useful for repelling unwanted particles/cells, and also for keeping selected particles/cells in place after turning off the light source. We propose that the new technique may be useful for myriad applications in the rapidly growing area of optical micromanipulation.
{"title":"Optoelectronic tweezers with patterned photoconductive layer for selecting, moving and storing particles and cells","authors":"Shuailong Zhang, A. Wheeler","doi":"10.1364/oma.2019.aw5e.2","DOIUrl":"https://doi.org/10.1364/oma.2019.aw5e.2","url":null,"abstract":"In this work, we introduce a new type of optical micromanipulation platform that we call patterned optoelectronic tweezers (p-OET). In p-OET devices, the photoconductive layer (that is contiguous in a conventional OET device) is patterned, forming regions in which the electrode layer is locally exposed. We demonstrate that the micro-patterns in the photoconductive layer are useful for repelling unwanted particles/cells, and also for keeping selected particles/cells in place after turning off the light source. We propose that the new technique may be useful for myriad applications in the rapidly growing area of optical micromanipulation.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88569974","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}
Hybrid nanostructures have a unique optical behavior arising from the synergistic properties of the individual components. We present an approach to model optical trapping of hybrid systems within the Transition matrix method. We discuss results on optical trapping of hybrid hollow plasmonic mesocapsules, core-shell nanostructures, and nanomaterials with gain.
{"title":"Optical trapping of hybrid nanostructures: a theoretical description","authors":"M. Iatì","doi":"10.1364/oma.2019.am3e.6","DOIUrl":"https://doi.org/10.1364/oma.2019.am3e.6","url":null,"abstract":"Hybrid nanostructures have a unique optical behavior arising from the synergistic properties of the individual components. We present an approach to model optical trapping of hybrid systems within the Transition matrix method. We discuss results on optical trapping of hybrid hollow plasmonic mesocapsules, core-shell nanostructures, and nanomaterials with gain.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76457110","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}
We provide a fully automated deep learning algorithm, using convolutional neural networks, outperforming other traditional methods for high precision digital video microscopy of single and multiple particles with noise.
{"title":"Digital microscopy enhanced by deep learning","authors":"Saga Helgadottir, Aykut Argun, G. Volpe","doi":"10.1364/OMA.2019.AT2E.5","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT2E.5","url":null,"abstract":"We provide a fully automated deep learning algorithm, using convolutional neural networks, outperforming other traditional methods for high precision digital video microscopy of single and multiple particles with noise.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85297908","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}
A. Bezryadina, Rekha Gautam, Yinxiao Xiang, Josh Lamstein, Yi Liang, Nicolas R. Perez, T. Hansson, B. Wetzel, R. Morandotti, Zhigang Chen
We demonstrate nonlinear optical effects and self-trapping of a laser beam through red blood cell suspensions under different osmotic conditions. Formed waveguides can provide effective guidance for weaker light through scattered bio-soft-matter.
{"title":"Waveguides of Light through Red Blood Cells","authors":"A. Bezryadina, Rekha Gautam, Yinxiao Xiang, Josh Lamstein, Yi Liang, Nicolas R. Perez, T. Hansson, B. Wetzel, R. Morandotti, Zhigang Chen","doi":"10.1364/OMA.2019.AT2E.3","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT2E.3","url":null,"abstract":"We demonstrate nonlinear optical effects and self-trapping of a laser beam through red blood cell suspensions under different osmotic conditions. Formed waveguides can provide effective guidance for weaker light through scattered bio-soft-matter.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82114124","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}
We provide a new route for active self-assembly, where activity occurs as an emergent phenomenon only when individual building blocks bind together, in a way which we manipulate using laser light.
{"title":"Light-driven Assembly and Optical Manipulation of Active Colloidal Molecules","authors":"Falko Schmidt, B. Liebchen, H. Löwen, G. Volpe","doi":"10.1364/OMA.2019.AT1E.4","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT1E.4","url":null,"abstract":"We provide a new route for active self-assembly, where activity occurs as an emergent phenomenon only when individual building blocks bind together, in a way which we manipulate using laser light.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72551841","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}
Erythrocyte membrane elasticity is studied using a dual-optical tweezer to perform deformation of RBC. Results show that is possible to identify diabetic individuals compared to healthy ones in 90% of the cases studied.
{"title":"Optical Tweezers as a tool to differentiate healthy / diabetic individuals via measuring elasticity of the erythrocyte cell membrane","authors":"Nahúm Méndez Alba, J. L. H. Pozos","doi":"10.1364/OMA.2019.AT3E.7","DOIUrl":"https://doi.org/10.1364/OMA.2019.AT3E.7","url":null,"abstract":"Erythrocyte membrane elasticity is studied using a dual-optical tweezer to perform deformation of RBC. Results show that is possible to identify diabetic individuals compared to healthy ones in 90% of the cases studied.","PeriodicalId":8973,"journal":{"name":"Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85559463","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}
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