3 April 2017:
A new publication from CNBP researchers (lead author Dr Ivan Maksymov pictured) demonstrates a new scheme for synthesis of optical spectra from nonlinear ultrasound harmonics using a hybrid liquid-state and nanoplasmonic device compatible with fibre-optic technology.
The work has just been reported in the journal ‘Optics Express’ and is accessible online.
Journal: Optics Express.
Title: Synthesis of discrete phase-coherent optical spectra from nonlinear ultrasound.
Authors: Ivan S. Maksymov and Andrew D. Greentree.
Abstract: Nonlinear acoustic interactions in liquids are effectively stronger than nonlinear optical interactions in solids. Thus, harnessing these interactions will offer new possibilities in the design of ultra-compact nonlinear photonic devices. We theoretically demonstrate a new scheme for synthesis of optical spectra from nonlinear ultrasound harmonics using a hybrid liquid-state and nanoplasmonic device compatible with fibre-optic technology. The synthesised spectra consist of a set of equally spaced optical Brillouin light scattering modes having a well-defined phase relationship between each other. We suggest that these spectra may be employed as optical frequency combs whose spectral composition may be tuned by controlling the nonlinear acoustic interactions.
22 March 2017:
Cell Systems has published an invited preview article authored by CNBP Research Fellow Dr Antony Orth along with collaborators from Harvard University and Massachussetts General Hospital.
The commentary article discusses how data-driven methods are poised to shake-up how we approach bio-microscopy. Microscopy-based assays can be made more informative and more predictive when paired with a library of reference images. The preview puts new results in this field into context and suggests further avenues of research.
The article is accessible online although a subscription is required.
13 March 2017:
CNBP scientists Dr Ivan Maksymov and Prof Andy Greentree at RMIT University have shown bubbles can detect sound with light in their latest publication in the area of photo-acoustics.
“Bubbles can be a boon for detecting the kind of ultrasound used in medicine as air is less dense than water” explains Dr Ivan Maksymov, “so ultrasound can squeeze a bubble more than the water surrounding it”.
To detect the change in size, Ivan showed that the bubbles could change the amount of light that passed through a gold membrane with nanosized holes in it. “It’s incredible work, I’m really excited by how Ivan has brought together these different kinds of Physics to create something quite new”, said the study’s co-author Prof Andy Greentree.
To detect the effects of sound on the bubble, on light, Ivan had to develop new computational models. The team say that their work may be useful in the development of an optical hydrophone for detecting ultrasound inside the body. “It will give us a new and potentially more sensitive way to ‘see’ with sound” says Ivan.
The work was published in the journal Physical Review A on 13th March 2017 and was funded by the Australian Research Council Centre of Excellence for Nanoscale BioPhotonics.
10 May 2017:
Dr Philipp Reineck, CNBP Research Fellow has been invited to give a talk at the ENM Nanoparticle meeting in San Sebastian in Spain and will also chair a workshop/session on nanoparticles for optical bioimaging. Further information on the conference can be found online.
18 March 2015:
The CNBP continued to build on its close industry link with Olympus Australia, recently hosting James Bowe (Director of Olympus Australia), and several of his colleagues (Eisuke Arinobe and Kim Everuss) at the Centre’s RMIT research node in Melbourne.
Invited as guest speaker for the RMIT School of Applied Sciences 2015 Awards Ceremony, James Bowe took the time to meet with CNBP RMIT team members prior to the event and was given a tour of the new CNBP office and laboratory space which is currently under construction.
The visit demonstrated the closeness between the two organisations, with both keen to explore and develop potential collaboration opportunities.
The Awards Ceremony also proved to be a successful evening for the Centre, with CNBP student Ashleigh Heffernan recognised twice for his achievements. He accepted the Nanotechnology Award for Physics as well as the Walter Boas Memorial Prize which recognises creativity in third year physics study.