Title |
Self-Aligned Plasmonic Nanopores by Optically Controlled Dielectric Breakdown
|
---|---|
Published in |
Nano Letters, September 2015
|
DOI | 10.1021/acs.nanolett.5b03239 |
Pubmed ID | |
Authors |
Sergii Pud, Daniel Verschueren, Nikola Vukovic, Calin Plesa, Magnus P. Jonsson, Cees Dekker |
Abstract |
We present a novel cost-efficient method for the fabrication of high-quality self-aligned plasmonic nanopores by means of optically controlled dielectric breakdown. Excitation of a plasmonic bowtie nanoantenna on a dielectric membrane localizes the high-voltage-driven breakdown of the membrane to the hotspot of the enhanced optical field, creating a nanopore that is automatically self-aligned to the plasmonic hotspot of the bowtie. We show that the approach provides precise control over the nanopore size and that these plasmonic nanopores can be used as single molecule DNA sensors with a performance matching that of TEM-drilled nanopores. The principle of optically controlled breakdown can also be used to fabricate non-plasmonic nanopores at a controlled position. Our novel fabrication process guarantees alignment of the nanopore with the optical hotspot of the nanoantenna, thus ensuring that pore-translocating biomolecules interact with the concentrated optical field that can be used for detection and manipulation of analytes. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Netherlands | 2 | 20% |
Sweden | 1 | 10% |
Unknown | 7 | 70% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 7 | 70% |
Scientists | 2 | 20% |
Science communicators (journalists, bloggers, editors) | 1 | 10% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Germany | 1 | <1% |
Belgium | 1 | <1% |
Unknown | 137 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 40 | 29% |
Researcher | 21 | 15% |
Student > Master | 20 | 14% |
Student > Bachelor | 10 | 7% |
Professor > Associate Professor | 8 | 6% |
Other | 21 | 15% |
Unknown | 19 | 14% |
Readers by discipline | Count | As % |
---|---|---|
Physics and Astronomy | 37 | 27% |
Engineering | 33 | 24% |
Chemistry | 23 | 17% |
Materials Science | 9 | 6% |
Biochemistry, Genetics and Molecular Biology | 4 | 3% |
Other | 9 | 6% |
Unknown | 24 | 17% |