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Optical Materials and Structures

Developing new techniques to fabricate a wide range of novel glasses, structured glass preforms via extrusion, passive, active, doped and structured soft and silica fibres. Underpinning sensing, non-linear, laser and light sources in the mid-IR and beyond.

optical materials and structures
  • Optical Materials and Structures Overview

    IPAS has complete vertical integration of expertise and facilities, from modelling to device fabrication.

    Key areas of strength include:

    • Tellurite and fluoride glasses (both passive and active)
    • Advanced preform technologies (extrusion and drilling based)
    • Development of glasses and fibres capable of transmitting light in the mid-infrared that underpin new sensing platforms and lasers
    • Custom silica fibres for fibre lasers, including air-clad rare-earth doped fibres
    • Suspended and exposed core silica fibres for sensing.
  • Modelling
    • A suite of analytical, numerical and finite-element modelling tools to predict the optical properties of waveguides and fibres with complex structures
    • New theoretic frameworks to explore waveguides and fibres with extreme properties and nanoscale features
    • A pulse propagation model to predict how a pulse propagates along a fibre
    • Waveguide and fibre design based on reversed engineering techniques
    • A suite of numerical and finite-element modelling tools to find resonance modes of microsphere and microdisk cavities
  • Fabrication of glasses and fibres

    • Controlled atmosphere glass batching, melting and annealing
    • Soft and hard glass preform extrusion
    • Soft and hard glass preform ultrasonic milling
    • Soft glass and silica fibre drawing
  • Characterisation
    • High-resolution electron and atomic force/scanning near-field optical microscopes (AFM/SNOM)
    • Transmission spectrometers and ellipsometers spanning from the ultraviolet to the far-infrared spectral region (200 nm-30 μm)
    • Optical profiler to measure surface roughness
    • Simultaneous thermal analysis (STA/TGA/DSC)
    • Fibre loss measurement
  • Research
    • Our research ranges from fundamental science to application-driven design and development, including:
    • Development of glasses with enhanced infrared transmission and optical nonlinearity
    • Nanophotonic glasses created by embedding nanocrystals in glass
    • Advanced technologies for processing and shaping glass
    • Design and fabrication of micro and nanostructured soft glass and silica optical fibres
    • Development of speciality doped, active and passive silica fibres, including single-mode germano-silica, rare-earth doped silica and double/triple clad fibres
    • Advanced light propagation theory within optical fibres and planar waveguides.
Institute for Photonics and Advanced Sensing
Address

North Terrace Campus
The Braggs Building
The University of Adelaide
Adelaide SA 5005
Australia

Contact

T: +61 8 8313 9254 
ipasadelaide@adelaide.edu.au

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