Time-bandwidth limit and reciprocity in optical nanostructures (Conference Presentation)

2018 ◽  
Author(s):  
Andrea Alù ◽  
Sander Mann ◽  
Dimitrios Sounas
Keyword(s):  
Optical Nanostructures

Optical Nanostructures Fabricated by SU-8 based NanoimprintLithography

2009 ◽  
Vol 55 (3(2)) ◽  
pp. 1290-1294 ◽  
Author(s):  
R. Liu ◽  
B.-R. Lu ◽  
S.-Q. Xie ◽  
J. Wan ◽  
Z. Shu ◽  
...  
Keyword(s):  
Optical Nanostructures

scholarly journals Magneto-Optical Nanostructures for Viral Sensing

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1271 ◽  
Author(s):  
Sabine Szunerits ◽  
Tamazouzt Nait Saada ◽  
Dalila Meziane ◽  
Rabah Boukherroub
Keyword(s):  
Viral Infections ◽  
Signal To Noise Ratio ◽  
Viral Disease ◽  
Magnetic Bead ◽  
Superparamagnetic Nanoparticles ◽  
Plasmonic Nanostructures ◽  
Complex Matrix ◽  
Severe Respiratory Distress ◽  
Sensing Applications ◽  
Optical Nanostructures

The eradication of viral infections is an ongoing challenge in the medical field, as currently evidenced with the newly emerged Coronavirus disease 2019 (COVID-19) associated with severe respiratory distress. As treatments are often not available, early detection of an eventual infection and its level becomes of outmost importance. Nanomaterials and nanotechnological approaches are increasingly used in the field of viral sensing to address issues related to signal-to-noise ratio, limiting the sensitivity of the sensor. Superparamagnetic nanoparticles (MPs) present one of the most exciting prospects for magnetic bead-based viral aggregation assays and their integration into different biosensing strategies as they can be easily separated from a complex matrix containing the virus through the application of an external magnetic field. Despite the enormous potential of MPs as capture/pre-concentrating elements, they are not ideal with regard of being active elements in sensing applications as they are not the sensor element itself. Even though engineering of magneto-plasmonic nanostructures as promising hybrid materials directly applicable for sensing due to their plasmonic properties are often used in sensing, to our surprise, the literature of magneto-plasmonic nanostructures for viral sensing is limited to some examples. Considering the wide interest this topic is evoking at present, the different approaches will be discussed in more detail and put into wider perspectives for sensing of viral disease markers.

scholarly journals Experimental Evaluation of the Light Trapping Potential of Optical Nanostructures for Thin-Film Silicon Solar Cells

2012 ◽  
Vol 15 ◽  
pp. 206-211 ◽  
Author(s):  
Corsin Battaglia ◽  
Jordi Escarré ◽  
Karin Söderström ◽  
M. Boccard ◽  
C. Ballif
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Experimental Evaluation ◽  
Light Trapping ◽  
Trapping Potential ◽  
Silicon Solar Cells ◽  
Thin Film Silicon ◽  
Optical Nanostructures

Structured light-matter interactions in optical nanostructures (Presentation Recording)

2015 ◽  
Author(s):  
Natalia M. Litchinitser ◽  
Jingbo Sun ◽  
Mikhail I. Shalaev ◽  
Tianboyu Xu ◽  
Yun Xu ◽  
...  
Keyword(s):  
Structured Light ◽  
Optical Nanostructures

scholarly journals Computing the T-matrix of a scattering object with multiple plane wave illuminations

2017 ◽  
Vol 8 ◽  
pp. 614-626 ◽  
Author(s):  
Martin Fruhnert ◽  
Ivan Fernandez-Corbaton ◽  
Vassilios Yannopapas ◽  
Carsten Rockstuhl
Keyword(s):  
Plane Waves ◽  
The Finite Element Method ◽  
Full Wave ◽  
Electric Dipoles ◽  
Complicated Object ◽  
T Matrix ◽  
Multiple Plane ◽  
Optical Nanostructures ◽  
Scattered Fields ◽  
Matrix Calculation

Given an arbitrarily complicated object, it is often difficult to say immediately how it interacts with a specific illumination. Optically small objects, e.g., spheres, can often be modeled as electric dipoles, but which multipole moments are excited for larger particles possessing a much more complicated shape? The T-matrix answers this question, as it contains the entire information about how an object interacts with any electromagnetic illumination. Moreover, a multitude of interesting properties can be derived from the T-matrix such as the scattering cross section for a specific illumination and information about symmetries of the object. Here, we present a method to calculate the T-matrix of an arbitrary object numerically, solely by illuminating it with multiple plane waves and analyzing the scattered fields. Calculating these fields is readily done by widely available tools. The finite element method is particularly advantageous, because it is fast and efficient. We demonstrate the T-matrix calculation at four examples of relevant optical nanostructures currently at the focus of research interest. We show the advantages of the method to obtain useful information, which is hard to access when relying solely on full wave solvers.

Fabrication of broad area optical nanostructures for high throughput chemical sensing

2013 ◽  
Vol 187 ◽  
pp. 356-362 ◽  
Author(s):  
P. Rodríguez-Franco ◽  
A. Arriola ◽  
N. Darwish ◽  
J.J. Jaramillo ◽  
H. Keshmiri ◽  
...  
Keyword(s):  
High Throughput ◽  
Chemical Sensing ◽  
Broad Area ◽  
Optical Nanostructures
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