Nanoplasmonics Research Group

Last updated on May 22, 2022

The Nanoplasmonics Research Group at the University of Victoria is supervised by Professor Reuven Gordon. The group focusses on nanoaperture optical trapping using double nanoholes. This technique was first developed by Professor Gordon and is now used by many optical trapping groups around the world. The group’s research is split between quantum computing applications using erbium-doped nanocrystals and protein analysis for biological and drug discovery applications.

Publications

A route to erbium-doped nanocrystals as a single photon source using double nanohole optical tweezers

Optical trapping and nanofabrication techniques can be applied with novel chemical methods to develop new devices that can be explored for quantum communication applications.

Michael Dobinson

A route to erbium-doped nanocrystals as a single photon source using double nanohole optical tweezers

Accessible High-Performance Double Nanohole Tweezers

Nanohole optical tweezers can be used without expensive top-down approaches such as electron microscopy or focused-ion beam milling by using polarization analysis to identify double nanoholes. Different substrates can also improve trapping and tape exfoliation can be used to simplify fabrication.

Ghazal Hajisalem, Elham Babaei, Michael Dobinson, Shohei Iwamoto, Zohreh Sharifi, Jon Eby, Marie Synakewicz, Laura S. Itzhaki, Reuven Gordon

Enhancing and Isolating Lanthanide-Doped Nanocrystals Using Double Nanohole Optical Tweezers for Quantum Light Sources at 1550 nm

Double nanohole optical trapping was used to measure the emission of nanocrystals with discrete levels of erbium ions.

Zohreh Sharifi, Michael Dobinson, Ghazal Hajisalem, Adriaan L Frencken, Frank CJM van Veggel, Reuven Gordon

Hexagonal boron nitride second harmonic generation using gold nanorods with continuous laser source

Second harmonic generation is demonstrated in two-dimensional hexagonal boron nitride (hBN) using plasmonic nanorods with low power CW laser excitation.

Mirali Seyed Shariatdoust, Michael Dobinson, Ghazal Hajisalem, Reuven Gordon

Upconversion nanocrystal emission rate enhancement using double nanoholes

The geometry of double nanohole plasmonic apertures can be tuned to provide significant emission enhancement from upconversion nanocrystals, compared to using rectangular apertures.

Zohreh Sharifi, Michael Dobinson, Ghazal Haji Salem, Adriaan L Frencken, Frank CJM van Veggel, Reuven Gordon

Plasmonics–mine the gap: opinion

Gap plasmon structures could enable future ultrafast communication and many of the structures needed have already been developed.

Reuven Gordon, Michael Dobinson

Isolating and enhancing single-photon emitters for 1550 nm quantum light sources using double nanohole optical tweezers

Plasmon-enhanced optical trapping was used to isolate nanocrystals with discrete levels of erbium ions. These levels were detected by observing discrete levels of emission from the erbium ions. Future work will investigate nanocrystals containing single erbium ions as single-photon sources.

Zohreh Sharifi, Michael Dobinson, Ghazal Hajisalem, Mirali Seyed Shariatdoust, Adriaan L Frencken, Frank CJM van Veggel, Reuven Gordon

Events

A poster presentation about fiber-based nanoaperture trapping titled ‘Nanoaperture optical fiber tweezers fabricated with a low-cost colloidal pattern transfer method’.

Aug 29, 2022 — Sep 2, 2022 University of Victoria

A conference presentation about using double nanohole optical trapping with erbium-doped nanocrystals titled ‘Enhancing and Isolating Lanthanide-Doped Nanocrystals Using Double Nanohole Optical Tweezers for Quantum Light Sources at 1550 nm’.

Dec 14, 2021 11:30 AM Pinnacle Harbourfront Hotel