Prof. Andrew A. Bettiol Profile

Prof. Andrew A. Bettiol

Associate Professor at National Univ of Singapore

SPIE Involvement:

Author

Publications (23)

SPIE Journal Paper | 28 May 2015

Focused ion-beam writing of channel waveguides in bismuth germanate crystal for telecommunication bands

Ruiyun He, Sudheer Kumar Vanga, Andrew Bettiol, Feng Chen

OE, Vol. 54, Issue 05, 057108, (May 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.5.057108

KEYWORDS: Waveguides, Ion beams, Crystals, Channel waveguides, Ions, Bismuth, Polarization, Refractive index, Telecommunications, Laser crystals

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Proceedings Article | 11 November 2014 Paper

Conductively coupled resonator scheme for dispersive transparency in metamaterials

Shuvan Prashant Turaga, Jianfeng Wu, Agnieszka Banas, Krzysztof Banas, Andrew Bettiol

Proceedings Volume 9275, 92750A (2014) https://doi.org/10.1117/12.2070847

KEYWORDS: Resonators, Metamaterials, Transparency, Terahertz radiation, Inductive coupling, Split ring resonators, Slow light, Gold, Silicon, Polarization

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Proceedings Article | 11 November 2014 Paper

Tailoring fabrication parameters of silver helical metamaterials for enhanced polarization properties in terahertz regime

Shuvan Prashant Turaga, Kwan Bum Choi, Yuanjun Yan, Andrew Bettiol

Proceedings Volume 9275, 927507 (2014) https://doi.org/10.1117/12.2070846

KEYWORDS: Silver, Lithography, Polymers, Terahertz radiation, Metamaterials, Metals, Polarization, Circular polarizers, Objectives, Plating

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Proceedings Article | 21 February 2013 Paper

Free-standing monolithic LiNbO^3 photonic crystal slabs

Jun Deng, Sudheer Vanga, Sajid Hussian, Hongwei Gao, Soon Thor Lim, Ching Eng Png, Xiang Ning, Andrew Bettiol, Aaron Danner

Proceedings Volume 8632, 86320H (2013) https://doi.org/10.1117/12.2004085

KEYWORDS: Photonic crystals, Reflectivity, Ions, Etching, Ion implantation, Wet etching, Crystals, Finite-difference time-domain method, Scanning electron microscopy, Sensors

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Proceedings Article | 15 February 2012 Paper

Radio frequency plasma pre-treatment for selective electroless Ag coating of three-dimensional SU-8 microstructures

Andrew Bettiol, Yuanjun Yan, Ee Jin Teo, Hendrix Tanoto, Jinghua Teng

Proceedings Volume 8249, 824916 (2012) https://doi.org/10.1117/12.908228

KEYWORDS: Silver, Plasma, Coating, Silicon, Metamaterials, 3D microstructuring, Plating, Scanning electron microscopy, Glucose, Surface roughness

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Proceedings Article | 15 February 2012 Paper

Optical microcavities fabricated using direct proton beam writing

Sudheer Kumar Vanga, Shuvan Prashant Turaga, Ee Jin Teo, Andrew Bettiol

Proceedings Volume 8249, 824918 (2012) https://doi.org/10.1117/12.908319

KEYWORDS: Laser resonators, Waveguides, Rhodamine B, Resonators, Optical components, Laser damage threshold, Fabrication, Polymers, Luminescence, Absorption

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Proceedings Article | 13 May 2010 Paper

Single cell electroporation using proton beam fabricated biochips

S. Homhuan, B. Zhang, F.-S. Sheu, A. Bettiol, F. Watt

Proceedings Volume 7716, 77160V (2010) https://doi.org/10.1117/12.850657

KEYWORDS: Electrodes, Nickel, Fabrication, Molecules, Polymethylmethacrylate, Microscopes, Luminescence, Proteins, Ultraviolet radiation, Halogens

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Proceedings Article | 17 February 2010 Paper

Microfluidic sorting system based on optical force switching

Siew-Kit Hoi, Chammika Udalagama, Chorng-Haur Sow, Andrew Bettiol

Proceedings Volume 7593, 759313 (2010) https://doi.org/10.1117/12.840820

KEYWORDS: Optical spheres, Microfluidics, Particles, Picosecond phenomena, Refractive index, Silica, Switching, Yeast, Laser scattering, Scattering

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Proceedings Article | 17 February 2010 Paper

Novel types of silicon waveguides fabricated using proton beam irradiation

E. J. Teo, P. Yang, B. Q. Xiong, M. Breese, G. Mashanovich, Y. S. Ow, G. Reed, A. Bettiol

Proceedings Volume 7606, 76060M (2010) https://doi.org/10.1117/12.841536

KEYWORDS: Waveguides, Silicon, Cladding, Ions, Electrochemical etching, Picosecond phenomena, Silicon photonics, Oxides, Etching, Neodymium

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Proceedings Article | 17 February 2010 Paper

Fabrication of porous silicon channel waveguides with multilayer Bragg cladding

Andrew Bettiol, Ee Jin Teo, Shuvan Prashant, Xiong Boqian, M. Breese

Proceedings Volume 7606, 76060K (2010) https://doi.org/10.1117/12.841692

KEYWORDS: Silicon, Waveguides, Refractive index, Cladding, Semiconductor lasers, Multilayers, Scanning electron microscopy, Photonic crystals, Optical fibers, Electron microscopes

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Proceedings Article | 20 March 2008 Paper

Proton beam writing: a platform technology for nano-integration

J. van Kan, F. Zhang, A. Bettiol, F. Watt

Proceedings Volume 6921, 69210K (2008) https://doi.org/10.1117/12.772607

KEYWORDS: Semiconducting wafers, Electrons, Polymethylmethacrylate, Nickel, Nanolithography, Lithography, Nanostructures, Electroplating, Nanotechnology, Nanowires

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Proceedings Article | 26 February 2008 Paper

Fabrication of integrated channel waveguides in polydimethylsiloxane (PDMS) using proton beam writing (PBW): applications for fluorescence detection in microfluidic channels

C. N. B. Udalagama, S. Chan, S. Homhuan, A. Bettiol, T. Wohland, F. Watt

Proceedings Volume 6882, 68820D (2008) https://doi.org/10.1117/12.762885

KEYWORDS: Waveguides, Channel waveguides, Microfluidics, Biomedical optics, Polymethylmethacrylate, Polymers, Particles, Polymer multimode waveguides, Refractive index, Ions

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Proceedings Article | 13 February 2008 Paper

Silicon waveguides for the mid-infrared wavelength region

G. Mashanovich, S. Stankovic, P. Yang, E. Teo, F. Dell'Olio, V. M. N. Passaro, A. Bettiol, M. Breese, G. Reed

Proceedings Volume 6898, 68980T (2008) https://doi.org/10.1117/12.765599

KEYWORDS: Waveguides, Silicon, Cladding, Wave propagation, Mid-IR, Atmospheric propagation, Refractive index, Absorption, Silicon photonics, Hollow waveguides

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Proceedings Article | 13 February 2008 Paper

An all-silicon channel waveguide fabricated using direct proton beam writing

E. Teo, A. Bettiol, M. B. Breese, P. Yang, G. Mashanovich, W. Headley, G. Reed, D. Blackwood

Proceedings Volume 6898, 68980Q (2008) https://doi.org/10.1117/12.762771

KEYWORDS: Waveguides, Silicon, Annealing, Channel waveguides, Refractive index, Light scattering, Etching, Cladding, Electrochemical etching, Silicon photonics

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Proceedings Article | 6 February 2008 Paper

Spectral properties of thick split ring resonators in the THz regime

Sher-Yi Chiam, Jiaguang Han, Ranjan Singh, Weili Zhang, Thomas Osipowicz, Andrew Bettiol

Proceedings Volume 6893, 68930A (2008) https://doi.org/10.1117/12.762369

KEYWORDS: Terahertz radiation, Gold, Metamaterials, Magnetism, Polarization, Split ring resonators, Nanolithography, Silicon, Electromagnetism, Fabrication

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Proceedings Article | 12 June 2007 Paper

Future prospects for silicon photonics

William Headley, Graham Reed, Goran Mashanovich, Branislav Timotijevic, Frederic Gardes, David Thomson, Pengyuan Yang, Ee-Jin Teo, Daniel Blackwood, Mark Breese, Andrew Bettiol, Peter Waugh

Proceedings Volume 6593, 65931I (2007) https://doi.org/10.1117/12.736867

KEYWORDS: Waveguides, Silicon, Modulators, Resonators, Silicon photonics, Polarization, Switches, Refractive index, Ions, Oxides

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Proceedings Article | 9 February 2007 Paper

Novel fabrication techniques for silicon photonics

G. Reed, P. Yang, W. Headley, P. Waugh, G. Mashanovich, D. Thomson, R. Gwilliam, E. Teo, D. Blackwood, M.B. Breese, A. Bettiol

Proceedings Volume 6477, 64770E (2007) https://doi.org/10.1117/12.705180

KEYWORDS: Waveguides, Silicon, Fabrication, Silicon photonics, Ion implantation, Refractive index, Oxygen, Etching, Fiber Bragg gratings, Wave propagation

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Proceedings Article | 21 April 2006 Paper

Integrating photonic and microfluidic structures on a device fabricated using proton beam writing

A. Bettiol, E. Teo, C. Udalagama, S. Venugopal Rao, J. van Kan, P. Shao, F. Watt

Proceedings Volume 6186, 61860F (2006) https://doi.org/10.1117/12.662495

KEYWORDS: Waveguides, Glasses, Fabrication, Microfluidics, Etching, Silver, Biomedical optics, Heat treatments, Refractive index, Lab on a chip

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Proceedings Article | 20 April 2006 Paper

Patterning light emitting porous silicon using helium beam irradiation

E. Teo, M. Breese, A. Bettiol, F. Champeaux, D. Blackwood

Proceedings Volume 6183, 618312 (2006) https://doi.org/10.1117/12.662502

KEYWORDS: Silicon, Ions, Helium, Scanning electron microscopy, Semiconducting wafers, Optical lithography, Ion beams, Atomic force microscopy, Luminescence, Silicon photonics

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Proceedings Article | 29 December 2003 Paper

Fabrication of silicon microstructures using a high-energy ion beam

Ee Jin Teo, Minghui Liu, Mark Breese, Emmanuel Tavernier, Andrew Bettiol, Daniel Blackwood, Frank Watt

Proceedings Volume 5347, (2003) https://doi.org/10.1117/12.524314

KEYWORDS: Silicon, Etching, Ion beams, Ions, Bridges, Electrochemical etching, Optical lithography, Helium, Micromachining, Photonic crystals

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Proceedings Article | 29 December 2003 Paper

Proton beam writing of passive polymer optical waveguides

Tze Chien Sum, Andrew Bettiol, Soma Venugopal Rao, Jeroen van Kan, Akkipeddi Ramam, Frank Watt

Proceedings Volume 5347, (2003) https://doi.org/10.1117/12.524083

KEYWORDS: Waveguides, Polymers, Refractive index, Prisms, Photoresist materials, Polymer multimode waveguides, Fabrication, Cladding, Glasses, Integrated optics

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