Light-matter interaction is a critical functionality for a plethora of applications such as sensing and biosensing, telecommunications, security, imaging, etc. Photonic crystals (PCs) are optical structures that enable the control of light-matter interactions. In this study, Abel Santos and his team demonstrate the realisation of hybrid nanoporous PCs with finely tuned optical properties across the spectral regions. These PCs allow and forbid the pass of light at specific spectral ranges, with accuracy and versatility, using a smart design of their structural features at the nanoscale to fine-tuning light-matter interactions.
Engineering of Hybrid Nanoporous Anodic Alumina Photonic Crystals by Heterogeneous Pulse Anodization
Siew Yee Lim, Cheryl Suwen Law, Lluís F. Marsal & Abel Santos1
Scientific Reports (2018) 8:9455 | DOI:10.1038/s41598-018-27775-6
For full article, please click here.
We are excited to welcoming Dennis Delic and Barnaby Smith from DSTG at IPAS Seminar on Thursday 12 July from 11:10 -12:00 pm.
Title: Advanced Single Photon Detector Arrays for Defence Applications
Time: 11:10-12:00 pm, Thursday 12th July 2018
Venue: The Braggs – Seminar room level 2
Presenters : Dennis Delic and Barnaby Smith – Defence Science and Technology Group
There are many Defence applications which require electro-optical sensor technologies for detection, tracking and discrimination of distant objects. In this talk we will outline Defence Science and Technology (DST) research into the design and development of Single Photon Avalanche Diode (SPAD) arrays, where we have focussed on miniaturizing individual SPAD detectors using commercially available Complementary Metal-Oxide-Semiconductor (CMOS) processes to allow integration with supporting digital integrated circuits. Apart from the obvious application for collection of low-light imagery, these detectors are particularly useful for time-of-flight 3D imaging applications using LADAR (LAser Detection And Ranging). We will outline the latest developments in our SPAD arrays and give a few examples of the LADAR applications we are pursuing.
Dennis Delic has worked in the semiconductor industry for more than twenty-five years as a senior Microelectronic Engineer. For the last 12 years he has worked at the Defence Science and Technology Group (DST Group) as an applied research specialist leading the design, development and application of CMOS based single photon detectors.
Dr Barnaby Smith undertook a PhD in luminescence at Adelaide University before undertaking postdoctoral research at Bristol and Oxford Universities for a number of years. Since 1990 he has worked for Defence Science and Technology leading groups working primarily on electro-optical technologies
IPAS research group led by Prof Andre Luiten has created a laser that can differentiate gas compounds with high accuracy and precision. This technique not only finds ground breaking applications in environmental monitoring and industrial contamination but also paves the way for early stage medical diagnostics.
Number-Density Measurements of CO2 in Real Time with an Optical Frequency Comb for High Accuracy and Precision.
Sarah K. Scholten, Christopher Perrella, James D. Anstie, Richard T. White, Waddah Al-Ashwal, Nicolas Bourbeau Hebert, Jerome Genest, and Andre N. Luiten
Phys.Rev.Applied 9, 054043
A new biochemical sensor using specialty optical fibre has been developed by an IPAS team at the University of Adelaide. This new sensor is more sensitive than previous designs while still being fully fibre integrated, meaning it can be used directly with standard optical equipment. The sensor has advantages of bio-compatibility, small size, and low cost, yet is robust and simple. It has good potential for biochemical detection in applications that require real-time monitoring and in-field detection. Congratulations Stephen Warren-Smith and team!
High-sensitivity Sagnac-interferometer biosensor based on exposed core micro structured optical fiber
Xuegang Li, Linh V.Nguyen, Yong Zhao, Heike Ebendorff-Heidepriem, Stephen C. Warren-Smith
We are very proud to announce that the first test builds from the IPAS 3D Metal Printing Facility have been completed.
The control levers are made from 316 Stainless Steel, and Eiffel Towers from Aluminium.
We have 3 Renishaw AM400 printers that will be running 316 Stainless Steel, Aluminium and Titanium in addition to the ProX200 printer on North Terrace.
Strong photon-photon interactions are a key requirement for numerous quantum communication and computation protocols. Generation of photon-photon interactions mediated by atomic vapours in hollow waveguides has shown great promise, with their efficiencies enhanced by the tight transverse confinement and extended interaction length. We demonstrate, both experimentally and theoretically, the strength of such interactions inside a series of hollow-core photonic crystal fibres and show they only scale with the optical mode diameter, not mode area as might be initially expected, a result of atomic motion within the waveguides. This insight will allow waveguides to be designed to target specific photon-photon interaction strengths.
Engineering Photon-Photon Interactions within Rubidium-Filled Waveguides
C. Perrella, P. S. Light, S. Afshar Vahid, F. Benabid, and A. N. Luiten
Phys. Rev. Applied 9, 044001
Inspiring transdisciplinary photonics researchers, led by Dr Jiawen Li, have invented a world-first tiny fibre-optic probe that can simultaneously measure temperature and see deep inside the body. Combining optical imaging and sensing technologies into a single-fibre-based probe will 1) enable researchers to accurately position sensors under real-time co-localized image guidance and 2) achieve simultaneous imaging and sensing in vivo, which are not accessible using present approaches. Within a week, this paper has reached Altmetric score 89 and ranked No.1 out of all outputs of similar age from Optics Letters.
Miniaturized single-fiber-based needle probe for combined imaging and sensing in deep tissue
Jiawen Li, Erik Schartner, Stefan Musolino, Bryden C. Quirk, Rodney W. Kirk, Heike Ebendorff-Heidepriem, and Robert A. McLaughlin
Opt. Lett. 43, 1682-1685 (2018)
To elaborate on the IPAS’s vision and research program, Dr Ben Sparkes, who is working on quantum atom-light interactions at IPAS, was invited for an interview with Radio Adelaide’s Subatomic program with Rohan Neagle. Dr Sparkes discussed the quantum optics research taking place at IPAS and its potential to increase the distance of absolutely-secure quantum communications using our novel hollow-core optical fibres.
For the interview podcast, please click here.
Congratulations Prof Andre Luiten for contributing to outstanding research in radio-astronomy. A large team demonstrated for the first time that a clock signal could be sent along 300km of optical fibre and be recovered at the end of the line with very little noise. This enabled a special type of radio-astronomy called Very-Long-Baseline Interferometry (VLBI).
This publication received coverage from several major media outlets such as Business Wire, Science Daily and Photonics Online, potentially reaching over 15 million readers.
Business Wire: https://www.businesswire.com/news/home/20180201005795/en/New-Telecomm
Science Daily: https://www.sciencedaily.com/releases/2018/02/180201104549.htm
Photonics Online: https://www.photonicsonline.com/doc/new-use-for-telecommunications-networkshelping-scientists-peer-into-deep-space-0001
Prof Andre Luiten explained that IPAS’s vision is about exploiting the power of light, to make the world healthier, wealthier and safer. He particularly focused on the critical need for pathways to translate research outcomes from the lab into the real-world.
The segment highlighted two specific projects from the Precision Measurement Group:
The Quantum Mechanics project led by Dr Ben Sparkes, looking at ways to use photonics, or the technology that allows the generation and control of light, to protect sensitive data: a critical feature in applications such as defence and banking.
The Sapphire Clock team, led by Prof Andre Luiten and A/Prof Martin O’Connor, is building a clock so accurate that it only loses a second once every 40 million years. This has a very important application in supporting Australia’s defence by allowing a performance increase of the Jindalee Over the Horizon Radar.