Prof. Shahraam Afshar Vahid Profile

Prof. Shahraam Afshar Vahid

Associate Professor at Univ of South Australia

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 12 March 2024 Poster + Paper

Poster + Paper

Toward a holmium doped multimode fiber amplifier with high quality focused output using wavefront-shaping

Linh Nguyen, Michael Oermann, Dmitrii Stepanov, Ka Wu, David Lancaster, Shahraam Afshar, David Ottaway, Heike Ebendorff-Heidepriem, Stephen Warren-Smith

Proceedings Volume 12865, 1286518 (2024) https://doi.org/10.1117/12.2687927

KEYWORDS: Multimode fibers, Holmium, Fiber lasers, Spatial light modulators, Polarization, Transverse mode instability, Near field, Wavefronts, Laser sources, Fiber amplifiers

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Proceedings Article | 30 December 2019 Paper

Paper

Microdiamond-doped lead-silicate glass optical fibre for remote magnetometry

Dongbi Bai, Hoa Huynh, David Simpson, Shahraam Vahid, Philipp Reineck, Andrew Greentree, Scott Foster, Heike Ebendorff-Heidepriem, Brant Gibson

Proceedings Volume 11200, 112000N (2019) https://doi.org/10.1117/12.2539124

KEYWORDS: Glasses, Magnetic sensors, Diamond, Optical fibers, Luminescence, Interfaces, Remote sensing

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Proceedings Article | 30 December 2019 Paper

Paper

Eigenvalue analysis of time separated signals using layer-peeling property

Terence Chan, Wen Qi Zhang, Shahraam Afshar Vahid

Proceedings Volume 11200, 112002W (2019) https://doi.org/10.1117/12.2539901

KEYWORDS: Scattering, Analytical research, Nonlinear optics, Fourier transforms, Transmittance, Complex systems, Orthogonal frequency division multiplexing, Modulation, Telecommunications, Physics

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Proceedings Article | 30 December 2019 Paper

Paper

Toward a new sensing platform based on conducting polymer: thickness measurement and the effect of different oxidant solution on damage threshold

Soroush Shahnia, Junaiz Rehmen, David Lancaster, Drew Evans, Shahraam Afshar

Proceedings Volume 11200, 1120030 (2019) https://doi.org/10.1117/12.2539940

KEYWORDS: Polymers, Laser damage threshold, Reflection, Optical fibers, Continuous wave operation, Coating, Laser induced damage, Absorption, Bioalcohols, Optical properties

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Proceedings Article | 30 December 2019 Paper

Paper

New approach to find nonlinear Fourier transform of optical signals

Shahraam Afshar Vahid, Wen Qi Zhang, Terence Chan

Proceedings Volume 11200, 112002Y (2019) https://doi.org/10.1117/12.2539909

KEYWORDS: Nonlinear optics, Differential equations, Telecommunications, Fiber optics, Ordinary differential equations, Signal processing

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Proceedings Article | 30 December 2019 Paper

Paper

Nonlinear Fourier transform of second order solitons with closely packed eigenvalues

Wen Qi Zhang, Terence Chan, Shahraam Afshar Vahid

Proceedings Volume 11200, 112002R (2019) https://doi.org/10.1117/12.2539582

KEYWORDS: Solitons, Fourier transforms, Nonlinear optics, Physics, Photonic devices, Telecommunications, Transform theory, Fiber optics, Optical communications, Data communications

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Proceedings Article | 2 January 2018 Paper

Paper

A fibre optic fluorescence sensor to measure redox level in tissues

Wen Qi Zhang, Janna Morrison, Jack R. Darby, Sally Plush, Alexandra Sorvina, Doug Brooks, Tanya Monro, Shahraam Afshar Vahid

Proceedings Volume 10456, 104564R (2018) https://doi.org/10.1117/12.2283352

KEYWORDS: Tissues, Microscopes, Heart, Fetus, Luminescence, Liver, Optical fibers, Fiber optics, Molecules, Sensors

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Proceedings Article | 17 February 2017 Presentation + Paper

Presentation + Paper

Mode-locked sub 200 fs laser pulses from an Er-Yb-Ce ZBLAN waveguide laser

David Lancaster, Champak Khurmi, Nicolas Bourbeau-Hebert, Jerome Genest, George Chen, Wenqi Zhang, Shahraam Afshar, Tanya Monro

Proceedings Volume 10082, 100821A (2017) https://doi.org/10.1117/12.2255708

KEYWORDS: Mode locking, Waveguide lasers, Erbium, ZBLAN, Waveguides, Solid state lasers, Solid state physics, Oscillators, Glasses, Mid-IR, Ultrafast lasers, Solids, Dispersion

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Proceedings Article | 22 December 2015 Paper

Paper

Dipole-fiber systems: radiation field patterns, effective magnetic dipoles, and induced cavity modes

Shaghik Atakaramians, Andrey Miroshnichenko, Ilya Shadrivov, Tanya Monro, Yuri Kivshar, Shahraam Afshar

Proceedings Volume 9668, 96683J (2015) https://doi.org/10.1117/12.2204783

KEYWORDS: Radiation effects, Magnetism, Refractive index, Photonics, Electroluminescent displays, Physics, Quantum information, Interfaces, Nanofibers, Neodymium

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Proceedings Article | 3 March 2015 Paper

Paper

Predicting the whispering gallery mode spectra of microresonators

Jonathan Hall, Shahraam Afshar V., Matthew Henderson, Alexandre François, Tess Reynolds, Nicolas Riesen, Tanya Monro

Proceedings Volume 9343, 93431Y (2015) https://doi.org/10.1117/12.2078526

KEYWORDS: Finite-difference time-domain method, Resonators, Microresonators, Optical spheres, Refractive index, Nanoparticles, Optical properties, Biosensing, Optical resonators, Spherical lenses

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Proceedings Article | 3 March 2015 Paper

Paper

Whispering-gallery mode lasers for biosensing: a rationale for reducing the lasing threshold

Alexandre François, Nicolas Riesen, Hong Ji, Shahraam Afshar Vahid, Tanya Monro

Proceedings Volume 9343, 93431U (2015) https://doi.org/10.1117/12.2076889

KEYWORDS: Resonators, Refractive index, Water, Biosensing, Laser damage threshold, Microresonators, Luminescence, Polymers, Laser applications, Optical spheres

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Proceedings Article | 22 February 2013 Paper

Paper

Enhancing the radiation efficiency of dye doped microresonators using coupling effects with a suspended core microstructured optical fiber

A. Francois, S. Afshar, K. Rowland, M. Henderson, T. Monro

Proceedings Volume 8600, 86001Z (2013) https://doi.org/10.1117/12.2004157

KEYWORDS: Resonators, Optical spheres, Micro optical fluidics, Microresonators, Structured optical fibers, Microscopes, Luminescence, Sensors, Refractive index, Waveguides

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Proceedings Article | 16 May 2008 Paper

Paper

Highly efficient fluorescence sensing using microstructured optical fibres: side-access and thin-layer configurations

S. Warren-Smith, S. Afshar V., T. Monro

Proceedings Volume 7004, 70041X (2008) https://doi.org/10.1117/12.785887

KEYWORDS: Luminescence, Sensors, Micro optical fluidics, Refractive index, Structured optical fibers, Signal attenuation, Bismuth, Performance modeling, Sensing systems, Glasses

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Proceedings Article | 16 May 2008 Paper

Paper

Highly efficient fluorescence sensing using microstructured optical fibres: general model and experiment

Shahraam Afshar V., Yinlan Ruan, Stephen Warren-Smith, Heike Ebendorff-Heidepriem, Tanya Monro

Proceedings Volume 7004, 70042Q (2008) https://doi.org/10.1117/12.785997

KEYWORDS: Luminescence, Micro optical fluidics, Glasses, Structured optical fibers, Absorption, Quantum dots, Silica, Bismuth, Optical sensing, Fiber optics sensors

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Proceedings Article | 11 January 2007 Paper

Paper

Microwire fibers for low-loss THz transmission

Shaghik Atakaramians, Shahraam Afshar Vahid, Bernd Fischer, Heike Ebendorff-Heidepriem, Tanya Monro, Derek Abbott

Proceedings Volume 6414, 64140I (2007) https://doi.org/10.1117/12.695785

KEYWORDS: Optical fibers, Terahertz radiation, Waveguides, Bismuth, Absorption, Polymethylmethacrylate, Glasses, Dielectrics, Refractive index, Nanowires

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Proceedings Article | 23 May 2005 Paper

Paper

CW pre-injection of pump-probe Brillouin sensors for high spatial and strain (temperature)resolutions

Shahraam Afshar, Liang Chen, Xiaoyi Bao

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624265

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Proceedings Article | 16 November 2004 Paper

Paper

High accuracy temperature and strain measurement with cm spatial resolution for distributed Brillouin-based fiber optic sensors

Shahraam Afshar, Liang Chen, Xiaoy Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567509

KEYWORDS: Signal to noise ratio, Spatial resolution, Sensors, Fiber optics sensors, Temperature metrology, Laser beam diagnostics, Continuous wave operation, Phonons, Pulsed laser operation, Signal attenuation

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Proceedings Article | 16 November 2004 Paper

Paper

Modeling of stimulated Brillouin scattering in microstructured fibers

Shahraam Afshar, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567548

KEYWORDS: Optical fibers, Cladding, Scattering, Micro optical fluidics, Laser scattering, Refractive index, 3D modeling, Acoustics, Free space, Matrices

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Proceedings Article | 16 November 2004 Paper

Paper

Simulation of the distributed fiber optic pump-probe Brillouin sensor

Yidun Wan, Sharhraam Afshar, Lufan Zou, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567410

KEYWORDS: Sensors, Phonons, Fiber optics sensors, Computer simulations, Pulsed laser operation, Fiber optics, Signal attenuation, Numerical analysis, Gaussian pulse

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Proceedings Article | 15 December 2003 Paper

Paper

A new fitting method for spectral characterization of Brillouin-based distributed sensors

Graham Ferrier, Shahraam Afshar V., Xiaoyi Bao, Liang Chen

Proceedings Volume 5260, (2003) https://doi.org/10.1117/12.543836

KEYWORDS: Sensors, Light scattering, Scattering, Optical fibers, Fiber optics sensors, Laser scattering, Continuous wave operation, Electro optical modeling, Yield improvement

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Proceedings Article | 15 December 2003 Paper

Paper

Impact of EOM extinction ratio on the Brillouin frequency measurement of distributed fiber optic sensors

Shahraam Afshar V., Graham Ferrier, Xiaoyi Bao, Liang Chen

Proceedings Volume 5260, (2003) https://doi.org/10.1117/12.543842

KEYWORDS: Signal detection, Fiber optics sensors, Signal attenuation, Electro optical modeling, Sensors, Acoustics, Baryon acoustic oscillations, Electrooptic modulators, Spatial resolution

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Showing 5 of 21 publications

Conference Committee Involvement (1)

SPIE Nanophotonics Australasia 2017

10 December 2017 | Melbourne, Australia

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