Programme

  • Day 1 Monday 2 December Room: Eng South S111
  • Day 2 Tuesday 3 December Room: Eng South S111
  • Day 3 Wednesday 4 December Room: Eng South S111
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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:00 AM - 10:20 AMACLD Welcome

Join us at the ACLD Welcome.

Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:20 AM - 10:30 AMCoffee
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:30 AM - 11:00 AMOpening
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
11:00 AM - 11:50 AMKeynote 1: Laser Diagnostics to Understand the Formation of Soot and the Evolution of Soot Precursors Matthew Dunn

Understanding and predicting the transition from gas-phase fuel species through to the formation of solid-phase soot is a significant challenge that despite many decades of research and significant progress, is still an active and growing research area. While significant progress has been made with ex-situ techniques, laser diagnostics offer the unique insights as well as the ability to make spatially and time-resolved measurements which are required to understand soot formation in turbulent systems.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
11:50 AM - 12:30 PMInvited Technical 1: Volumetric Density Field Measurements in Turbulent Flows Callum Atkinson

Engineers are confronted by a wide array of flows which exhibit and in many cases are either solely or partially driven by density gradients. The past 20 years have seen significant advancement in our ability to experimentally measure instantaneous velocity fields to the extent that time-resolved volumetric velocity fields measurements are now possible. However, quantifying instantaneous density fields remains a challenge.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:30 PM - 12:50 PMUsing Spatial Light Modulators to Improve The Technique Of Focusing Laser Differential Interferometry J. Hart, R. M. Kelly and T.J. McIntyre

A promising, non-intrusive laser diagnostic technique for analysing hypersonic gas flow structures is the Focusing Laser Differential Interferometer (FLDI). The instrument determines density gradients of test flows by using changes in phase between two spatially separated focused beams.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:50 PM - 02:00 PMLunch
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:00 PM - 02:20 PM3D Accelerations of a Subsonic Jet using Four-Pulse Shake-The-Box P. Manovski, M. Novara, N.K. Depuru Mohan, R. Geisler, D. Schanz and A. Schröder

Three-dimensional (3D) Lagrangian Particle Tracking (LPT) was performed using the Shake-The-Box (STB) algorithm on a subsonic round jet flow at Mach 0.845. The STB technique for four-pulse data was employed to reconstruct particle tracks along the four-pulse sequences providing highly resolved 3D flow velocity and material acceleration data. A description of the experimental methodology is given followed by instantaneous accelerations and averaged flow statistics.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:20 PM - 02:40 PMEffect of Nozzle Features on PMDI Sprays D. Nguyen, D. Duke and D. Honnery

This paper reports on the study of the effect of nozzle hole number and mixture formulation on the spray from a device designed to simulate the pressurised metered dose inhaler.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:40 PM - 03:00 PMEnhancing Digital Holographic Microscopic PIV by exploiting the contrast inversion property of weak scattering tracer particles A. Ahmed, B. Sun, V. J. Cadarso, C. Atkinson and J. Soria

Digital holographic microscopic particle image velocimetry (DHM-PIV) provides 3 component 3-dimensional (3C-3D) flow velocity information which is the most comprehensive way to investigate a wide range of fluid phenomenon in both micro and macro fluidics. DHM-PIV offers 3D flow measurement with high spatio-temporal resolution, minimal optical setup and easy calibration compared to other 3D PIV techniques such as tomographic PIV, defocusing PIV, etc.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
03:00 PM - 03:20 PMEthylene Detection using Laser Modulated Photoacoustic Resonance at 1625nm J. Leis and D. Buttsworth

The detection of ethylene (ethene) gas at parts-per-million concentrations is important for agricultural product transportation, storage and retailing, since ethylene affects the ripening behaviour of many fruit species.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
03:20 PM - 04:00 PMCoffee Break
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
04:00 PM - 04:40 PMInvited Technical 2: Advanced Engineering of Nanoporous Photonic Crystals for Environmental Diagnosis Dr Abel Santos

Heavy metal ions are extremely persistent contaminants that cannot be degraded by conventional treatments, and bioaccumulate in humans and wildlife. Exposure to heavy metal ions is a critical threat to our environment and health. Conventional analytical techniques have limitations (low selectivity, long processing times, high costs, cross-contamination, low throughput) that severely constrain our ability for efficient detection of heavy metals in the environment. We urgently need advanced diagnostic technologies to guide and maximise heavy metal remediation efforts.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
04:40 PM - 05:00 PMExperimental analysis of the shear layer instabilities in supersonic impinging jets using double PIV technique T. Sikroria, J. Soria, R. Sandberg and A. Ooi

Supersonic impinging jets have diverse practical applications like VTOL aircraft exhaust jet noise, ground erosion during rocket launch and surface finish in cold gas spray additive manufacturing processes.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
05:00 PM - 05:20 PMFluorescence Imaging Behind a Scramjet Combustor T. Vanyai, A. Veeraragavan and T. J. McIntyre

The distribution of OH radicals has been visualised within a hypersonic shock tunnel. Unexpected fluorescence was observed in the flow that passed around a supersonic combustor model.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
05:20 PM - 05:40 PMFocused Laser Differential Interferometry for Hypersonic Flow Diagnostics B. Birch, D. Buttsworth and F. Zander

A focused laser differential interferometer has been designed for the investigation of freestream and boundary layer flows produced in the University of Southern Queensland’s hypersonic wind tunnel.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
05:40 PM - 06:00 PMPreliminary correlations between strain rates, vorticity and particle clustering in a turbulent pipe-jet T. C. W. Lau, J. H. Frank and G. J. Nathan

High speed tomographic particle image velocimetry was utilised to measure the four dimensional distributions of particles at the exit of a particle-laden turbulent pipe-jet under conditions where particle clustering was previously shown to occur.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
08:30 AM - 09:20 AMKeynote 2: Diode Lasers for Quantitative Fluid Diagnostics Sean O’Byrne

Lasers have been used for more than fifty years to investigate fluid behaviour, because of their many quantifiable characteristics, which makes them versatile enough to measure a number of state variables. In the author’s research field of hypersonic flows, the ability to change the laser properties rapidly is of paramount importance, because the flow conditions change rapidly and the flows are of very limited duration.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
09:20 AM - 09:40 AMInstantaneous Three-Dimensional Density Measurements Using Tomographic Background-Oriented Schlieren S. Amjad, J. Soria and C. Atkinson

Experimental density field measurements are critical in describing the dynamics of turbulent convective heat transfer and mixing. In turbulent flows, the density field is strongly three-dimensional and varies with time.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
09:40 AM - 10:00 AMInterference Modes in Laser Induced Fluorescence Thermometry Applied to Particle-Laden Flows E.W. Lewis, T.C.W. Lau, Z.W. Sun, Z.T. Alwahabi, and G.J. Nathan

The influence of interference from solid particles on gas-phase temperature measurements using two-colour laser induced fluorescence (LIF) thermometry was analysed for two different particle types, PMMA and ZnO:Zn.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:00 AM - 10:20 AMA Low-Cost in situ Measurement of Laser Sheet Thickness M. Shehzad, S. Lawrence, C. Atkinson, and J. Soria

This paper presents a low-cost technique for accurate in situ measurement of the laser sheet thickness.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:20 AM - 11:00 AMCoffee Break
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
11:00 AM - 11:50 AMInvited Technical 3: Spatially Resolved Surface Enhanced Raman Scattering for Multiplex Identification of Antibody-Antigen Interaction Sheng Dai

Accurate diagnosis of human diseases at an early stage is crucial for efficient medical treatment and human health. Most complicated diseases such as cancer need high-throughput multiplex analysis to provide an overall profile, but traditional fluorescence technique undergoes various limitation in modern bioanalysis. Raman scattering and surface enhanced Raman scattering (SERS) have shown technical advantages in multiplex analysis associated with their narrow vibrational spectrum.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
11:50 AM - 12:10 PMThe Effect of Shot Noise on the Accuracy of Particle Positions in Hologram Reconstruction Using Inverse Method B. Sun, A. Ahmed, C. Atkinson and J. Soria

This paper introduces a holography reconstruction method that overcomes some of the problems of digital in-line holography.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:10 PM - 12:30 PMMulti-Positional Spectral Domain Optical Coherence Tomography (SD-OCT) Using Wavelength Multiplexing T. Mekonnen, A. Kourmatzis and S. Cheng

Optical Coherence Tomography (OCT) is a non-invasive cross-sectional imaging technique based on the principle of laser interferometry. Normally, the lateral field of view of a low-coherence interferometric OCT is limited to a single-spot of a sample; thus, available OCT techniques can take significant time to scan large objects. This paper presents a novel multi-channel spectral domain Optical Coherence Tomography (SD-OCT) method involving spectral-slicing of broadband low-coherence light to enable the simultaneous acquisition of images from multiple lateral positions of a target.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:30 PM - 12:50 PMOn the Development of Short-Pulse Picosecond Rotational Coherent Anti-Stokes Raman Scattering S.A. Steinmetz, M.J. Dunn, A.R. Masri

Rotational coherent anti-Stokes Raman scattering (RCARS) utilizing a 30 ps pulse duration laser is explored in this paper.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:50 PM - 02:00 PMLunch
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:00 PM - 02:20 PMPerformance Analysis of FLDI Technique using Turbulent Jets A. Ramprakash, T.J. McIntyre, V. Wheatley and D.J. Mee

Focused Laser Differential Interferometry (FLDI), a non-intrusive optical diagnostic technique was set up and characterized using turbulent jets. A 90° phase shift interferometry setting, a key requirement to remove phase ambiguity is obtained by traversing the second Wollaston prism perpendicular to the beam axis.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:20 PM - 02:40 PMOptimised Gating for Detecting Chlorine and Fluorine in Molecular Form Using Microwave-Assisted LIBS M. A. Wakil and Z.T. Alwahabi

Microwave assisted laser-induced breakdown spectroscopy (MW-LIBS) has been applied spectroscopically to detect chlorine and fluorine at ambient conditions.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
02:40 PM - 03:00 PMPlateau-Rayleigh Breakup of Supercooled Refrigerant Droplets H.N. Scott, D. Nguyen, D.J. Duke and D.R. Honnery

This paper presents a new method to produce monodisperse supercooled refrigerant droplets, comparing the breakup mechanism to the Plateau-Rayleigh instability.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
03:00 PM - 03:20 PMAssessment of BAM Phosphors for Particle Temperature Measurement in Multiphase Flow W. Zhao, K.C.Y. Kueh, G. J. Nathan and Z. T. Alwahabi

The temperature measurement of phosphors, heated by high radiation flux, has been investigated. Laser induced phosphorescence (LIP) has been applied to yield non-intrusive surface temperature of moving particles in multiphase flow.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
03:20 PM - 04:00 PMCoffee Break
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
04:00 PM - 04:20 PMTowards 3D PIV Measurements of a Patient-Specific Arteriovenous Fistula S. Gunasekera, O. Ng, S. Thomas, R. Varcoe, C. de Silva and T. Barber

The arteriovenous fistula (AVF) is a vascular structure that is surgically created for kidney failure patients, to allow them to undergo haemodialysis efficiently. An AVF is susceptible to many vascular diseases which are associated with the disturbed nature of the flow in the unnatural geometry of the vessels. The current study examines the flow within the anastomosis and juxta-anastomotic regions of an AVF.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
04:20 PM - 04:40 PMTunable Diode Laser Absorption Spectroscopy in a Supersonic Steam Jet Al-Manea, D. Buttsworth, J. Leis, and K. Saleh

Turbulent mixing of multi-phase compressible jets formed within steam ejectors requires further investigation so that reliable models can be developed to aid the ejector design process. Tunable Diode Laser Absorption Spectroscopy (TDLAS) was applied to measure properties in a supersonic steam jet formed downstream from an ejector nozzle.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
04:40 PM - 05:00 PMHemodynamic of a Coronary Artery: a PIV Measurement N. Freidoonimehr, R. Chin, A. Zander, and M. Arjomandi

Understanding the flow features near the stenosis location inside a coronary artery is critical for identifying the possible mechanisms contributing to the disease progression. In this study, a Planar Particle Image Velocimetry (PIV) was employed to study the mean and instantaneous flow fields downstream of a semi-blocked artery model.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
06:25 PMMeeting for transport: At the University tram stop on North terrace,
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
07:30 PM - 10:30 PMConference Dinner
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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
08:30 AM - 09:10 AMInvited Technical 4: The Development and Application of Structured Laser Illumination Planar Imaging Elias Kristensson

Imaging through optically turbid media such as atomizing spray systems is challenging due to multiple light scattering inside the object. Such multiply scattered light deteriorates the desired signal, often by generating a diffuse background. To address this, we at the Division of Combustion Physics at Lund University have developed a laser-based imaging technique called Structured Laser Illumination Planar Imaging (SLIPI) that is capable of separating the sought signal component (either unperturbed or singly scattered light) from the contribution arising due to multiple light scattering.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
09:10 AM - 09:50 AMInvited Technical 5: QCL-Based Sensors for Chemical Kinetic Applications Aamir Farooq

Quantum cascade lasers (QCL) have revolutionized the spectroscopic investigations due to their unique capability of providing access to the fingerprint mid-infrared wavelength region. Laser absorption diagnostics based on QCLs thus enable quantitative, time-resolved species concentration and temperature measurements in complex chemically reactive systems. This talk will discuss some of the recent applications of QCLs to chemical kinetic studies.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
09:50 AM - 10:30 AMInvited Technical 6: Laser Diagnostics in Turbulent Sooting Flames Zhiwei Sun

Over past few years, several laser diagnostic techniques used for the measurements of lab-scale turbulent sooting flames have been developed and applied in the combustion group of the University of Adelaide. In this talk, the details of these unique technique will be reviewed, particularly focusing on the technical details.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
10:30 AM - 11:00 AMCoffee Break
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
11:00 AM - 12:00 PMKeynote 3 (Room S112): Recent Developments in Turbulent Combustion Modelling and Laser-Based Experiments and Their Relevance to Practical Systems Epaminondas Mastorakos
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:00 PM - 12:40 PMInvited Technical 7 (Room S112): Recent Advances in Coherent Anti-Stokes Raman Scattering and High-Speed Burst-Mode Diagnostics: Characterization of Combustion Environments Hans Stauffer

Revolutionary advances in both ultrashort-pulse (femtosecond) and high-repetition-rate (burst-mode) lasers are driving the advancement of existing diagnostic techniques and enabling the development of new measurement approaches for the detailed study of the chemistry and physics of reacting flows and plasmas.

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Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:40 PM - 12:50 PMClosing
Laser - Australian Conference on Laser Diagnostics - © Copyright 2019 - Zeyad Alwahabi
12:50 PM - 02:00 PMLunch