Near-field optical imaging of polarization-dependent plasmonic resonance in metal nanoparticle pairs

2010 ◽  
Author(s):  
Hsing-Ying Lin ◽  
Chen-Han Huang ◽  
Chih-Han Chang ◽  
Yun-Chiang Lan ◽  
Hsiang-Chen Chui
Keyword(s):  
Optical Imaging ◽  
Near Field ◽  
Metal Nanoparticle ◽  
Plasmonic Resonance

scholarly journals Direct near-field optical imaging of plasmonic resonances in metal nanoparticle pairs

2009 ◽  
Vol 18 (1) ◽  
pp. 165 ◽  
Author(s):  
Hsing-Ying Lin ◽  
Chen-Han Huang ◽  
Chih-Han Chang ◽  
Yun-Chiang Lan ◽  
Hsiang-Chen Chui
Keyword(s):  
Optical Imaging ◽  
Near Field ◽  
Metal Nanoparticle

Fabrication and characterization of fluorescent rare-earth-doped glass-particle-based tips for near-field optical imaging applications

2004 ◽  
Vol 43 (19) ◽  
pp. 3829 ◽  
Author(s):  
Lionel Aigouy ◽  
Yannick De Wilde ◽  
Michel Mortier ◽  
Jacques Giérak ◽  
Eric Bourhis
Keyword(s):  
Rare Earth ◽  
Optical Imaging ◽  
Near Field ◽  
Glass Particle ◽  
Fabrication And Characterization ◽  
Doped Glass ◽  
Rare Earth Doped ◽  
Rare Earth Doped Glass

scholarly journals Near-Field Interactions between Metal Nanoparticle Surface Plasmons and Molecular Excitons in Thin-Films. Part I: Absorption

2012 ◽  
Vol 116 (45) ◽  
pp. 24206-24214 ◽  
Author(s):  
Bjoern Niesen ◽  
Barry P. Rand ◽  
Pol Van Dorpe ◽  
David Cheyns ◽  
Honghui Shen ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Plasmons ◽  
Near Field ◽  
Metal Nanoparticle ◽  
Nanoparticle Surface ◽  
Molecular Excitons

Enhanced Plasmonic Behavior of Metal Nanoparticles Surrounded With Dielectric Shell

2019 ◽  
Author(s):  
Anil Yuksel ◽  
Michael Cullinan ◽  
Edward T. Yu ◽  
Jayathi Murthy
Keyword(s):  
Metal Nanoparticles ◽  
Near Infrared ◽  
Energy Transport ◽  
Near Field ◽  
Metal Nanoparticle ◽  
Infrared Wavelength ◽  
Laser Illumination ◽  
Dielectric Media ◽  
Dielectric Shell ◽  
Laser Sources

Abstract Metal nanoparticles have attracted intense attention due to their unique optical and thermal properties in various next generation applications such as micro-nano electronics and photonics. The near-field confinement between closely packed metal nanoparticles, which is enhanced due to their plasmonic behavior, creates high thermal energy densities under visible to near-infrared wavelength laser irradiation. As metal nanoparticles tend to be oxidized or change shape under laser illumination, resulting in nonlinear optical and thermal behavior, surrounding each metal nanoparticle with a dielectric shell could be a potential way to prevent these effects as well as to engineer their plasmonic behavior. In this study, we investigate energy transport within dimer and 4 nanoparticle (chain) configurations of 50 nm radius Au nanoparticles surrounded by dielectric shells under illumination from various laser sources in different dielectric media.

Stable Fano-like plasmonic resonance: its impact on the reversal of far- and near-field optical binding force

2020 ◽  
Vol 72 (4) ◽  
pp. 045502
Author(s):  
Hamim Mahmud Rivy ◽  
M R C Mahdy ◽  
Nabila Masud ◽  
Ziaur Rahman Jony ◽  
Saikat Chandra Das
Keyword(s):  
Near Field ◽  
Plasmonic Resonance ◽  
Binding Force ◽  
Optical Binding

scholarly journals Optical imaging of single-protein size, charge, mobility, and binding

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Guangzhong Ma ◽  
Zijian Wan ◽  
Yunze Yang ◽  
Pengfei Zhang ◽  
Shaopeng Wang ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Single Molecule ◽  
Near Field ◽  
Disease Diagnosis ◽  
Imaging Method ◽  
Charge Mobility ◽  
Single Molecule Level ◽  
Protein Size ◽  
Flexible Polymer ◽  
Detection And Identification

Abstract Detection and identification of proteins are typically achieved by analyzing protein size, charge, mobility and binding to antibodies, which are critical for biomedical research and disease diagnosis and treatment. Despite the importance, measuring these quantities with one technology and at the single-molecule level has not been possible. Here we tether a protein to a surface with a flexible polymer, drive it into oscillation with an electric field, and image the oscillation with a near field optical imaging method, from which we determine the size, charge, and mobility of the protein. We also measure antibody binding and conformation changes in the protein. The work demonstrates a capability for comprehensive protein analysis and precision protein biomarker detection at the single molecule level.

scholarly journals The application of scanning near field optical imaging to the study of human sperm morphology

2015 ◽  
Vol 13 (1) ◽  
pp. 2 ◽  
Author(s):  
Laura Andolfi ◽  
Elisa Trevisan ◽  
Barbara Troian ◽  
Stefano Prato ◽  
Rita Boscolo ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Sperm Morphology ◽  
Near Field ◽  
Human Sperm
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