Results 121 to 130 of about 88,486 (313)

Plasmonic Oligomers With Tunable Conductive Nanojunctions

, 2019
Plasmonic particles can be welded together, but controlling the metallurgy of the hotspots is a challenge in colloidal chemistry. In this paper, we demonstrate an original method that connects gold particles to their neighbors by another metal of choice.
Xiaoyan, Li, Cyrille, Hamon, Claire, Goldmann, Mathieu, Kociak, Jieli, Lyu, Doru, Constantin   +5 more
core   +1 more source

Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale

Advanced Optical Materials, EarlyView.
Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo, Sandra Krzyzowska, Shelly Yang, Dingchen Wen, Jana Zielinski, Farsai Taemaitree, Samantha Zaman, Alastair Stewart, Susana Rocha, Paul Mulvaney, Hiroshi Uji‐i, Beatrice Fortuni, Sam Brooke, James Hutchison   +13 more
wiley   +1 more source

Extreme Plasmons

Advanced Quantum Technologies
Abstract Nanometric confinement of electromagnetic energy has become possible using plasmons that are quasiparticles constituted by collective oscillations of conduction band electron gas. Here, nonperturbative plasmons are modeled having large‐amplitude oscillations that approach the extreme limit set by breakdown in characteristic ...
openaire   +2 more sources

Microfluidic-based plasmonic nanosensors for biological and chemical threats

In the ever-evolving landscape of biological and chemical threat detection, the integration of microfluidics and plasmonic nanosensors has emerged as a revolutionary approach.
Yılmaz, Eylül Gülşen, Saylan, Yeşeren, Erdem, Özgecan, İnci, Fatih, Küçük, Beyza Nur   +4 more
core   +1 more source

Nanoplasmonic filters for hollow core photonic crystal fibres

, 2014
We demonstrate a method to add photonic functionalities to the tip of hollow photonic crystal bres, for ultra-compact and integrated lab-on-bre applications.
Andrea Di Falco, Di Falco, Andrea, Peter Reader-Harris, Reader-Harris, Peter John   +3 more
core   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Broadband Plasmonic Couplers for Light Trapping and Waveguiding

We have experimentally and theoretically demonstrated plasmonic couplers based on metal nanoparticles film (metal islands) deposited upon the optical dielectric waveguide.
Djidjeli, F., Jaberansary, E., Bagnall, D. M., Chong, H. M. H.   +3 more
core  

Detection of Estrogenic Hormones Using Plasmonic Nanostructures

, 2020
By optimising the geometry of asymmetric split-H (ASH) resonators fabricated on zinc selenide, we have produced a total of four distinct plasmonic resonances that could be matched with six molecular vibration wavelengths (for O-H, C-H, C=O,
Caroline, Gauchotte-Lindsay, Richard M., De La Rue, Graham, Sharp, Marc, Sorel, Ili Farhana, Mohamad Ali Nasri, Nigel, Johnson   +5 more
core   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

Advanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti, Rebeca Ferrer Campos, Yufen Chen, Katherine Villa   +3 more
wiley   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source