Bettiol Group

Department of Physics, National University of Singapore

2010

Yilin Xie, Fook-Chiong Cheong, Yanwu Zhu, Binni Varghese, Rajesh Tamang, Andrew Bettiol and Chorng-Haur Sow, Rainbow-like MoO3 Nanobelts Fashioned via AFM Micromachining, Journal of Physical Chemistry C 114 (2010) 120-124

Guangyuan Si, Ee Jin Teo, Andrew A. Bettiol, Jinghua Teng and Aaron J. Danner, Suspended slab and photonic crystal waveguides in lithium niobate, Journal of Vacuum Science and Technology B28 (2010) 316-320

Ee Jin Teo,
Andrew A. Bettiol, Boqian Xiong, Mark B H Breese and Prashant T Shuvan, An all-silicon, single-mode Bragg cladding rib waveguide, Optics Express 18 (2010) 8816-8823

Yicun Yao, Yang Tan, Ningning Dong, Feng Chen and
Andrew A. Bettiol, Continuous wave laser oscillations in Nd:YAG channel waveguides produced by focused proton beam writing, Optics Express 18 (2010) 24516-24521

A. Benayas, D. Jaque, Yicun Yao, Feng Chen,
A. A. Bettiol, A. Rodenas, and A. K. Kar, Micro-structuring of Nd:YAG crystals by proton beam writing, Optics Letters 35 (2010) 3898-3900

Siew-Kit Hoi, Zhi-Bin Hu, Yuanjun Yan, Chorng-Haur Sow and
Andrew A. Bettiol, A microfluidic device with integrated optics for microparticle switching, Applied Physics Letters 97 (2010) 183501

Sher-Yi Chiam, Ranjan Singh, Weili Zhang and
Andrew A Bettiol, Controlling metamaterial resonances via dielectric and aspect ratio effects, Applied Physics Letters 97 (2010) 191906

Siew-Kit Hoi, Vuong Hoang Kim, Nguyen Manh Huy, Chorng-Haur Sow, Yueh-Sheng Ow and Andrew A. Bettiol, Passive optical separation and enrichment of cells by size difference,
Biomicrofluidics 4 (2010) 044111

C. Udalagama, A.A. Bettiol and F. Watt, Imaging using Pulses: A simple & fast (> 100 kHz) solution,
Journal of Microscopy 238 (2010) 185-188

2009

Sher-Yi Chiam, Ranjan Singh, Carsten Rockstuhl,Weili Zhang, Falk Lederer and A.A. Bettiol, Analogue of electromagnetically induced transparency in a terahertz metamaterial, Physical Review B 80 (2009) 153103


C. Udalagama, A. A. Bettiol and F. Watt, Stocastic spatial energy deposition profiles for MeV protons and keV electrons,
Physical Review B 80 (2009) 224107

E. J. Teo, A. A. Bettiol, B. Xiong, M. B. H. Breese, P. Yang, G. Z. Mashanovich, and G. T. Reed, Fabrication of low loss silicon-on-oxidised porous silicon strip waveguide using focused proton-beam irradiation,
Optics Letters 34 (2009) 659-661

E. J. Teo, B. Q. Xiong, Y. S. Ow, M. B. H. Breese and A. A. Bettiol, Effects of oxide formation around core circumference of silicon-on-oxidized-porous-silicon strip waveguide,
Optics Letters 34 (2009) 3142-3144

S. Y. Chiam, Ranjan Singh, Jianqiang Gu, Jiaguang Han, Weli Zhang and A. A. Bettiol, Increased frequency shifts in high aspect ratio terahertz split ring resonators,
Applied Physics Letters 94 (2009) 064102

A.A. Bettiol, C. Udalagama and F. Watt, A new data acquisition and imaging system for nuclear microscopy based on a Field Programmable Gate Array card,
Nuclear Instruments & Methods in Physics Research B 267 (2009) 2069-2072

F. Watt, A.A. Bettiol, J.A. van Kan, M.D. Ynsa, Ren Minqin, R. Rajendran, Cui Huifang, Sheu Fwu-Shen and A.M. Jenner, Imaging of single cells and tissue using MeV ions,
Nuclear Instruments & Methods in Physics Research B 267 (2009) 2113-2116

A.A. Bettiol, S.Y. Chiam, E.J. Teo, C. Udalagama, S.F. Chan, S.K. Hoi, J.A. van Kan, M.B.H. Breese and F. Watt, Advanced applications in microphotonics using proton beam writing,
Nuclear Instruments & Methods in Physics Research B 267 (2009) 2280-2284

Y.S. Ow, M.B.H. Breese and A.A. Bettiol, Proton beam writing for producing holographic images,
Nuclear Instruments & Methods in Physics Research B 267 (2009) 2289-2291

L.P. Wang, P.G. Shao, J.A. van Kan, A.A. Bettiol, F. Watt, Development of elastomeric lab-on-a-chip devices through Proton Beam Writing (PBW) based fabrication strategies,
Nuclear Instruments & Methods in Physics Research B 267 (2009) 2312-2316

Peng Yuan Yang, Stevan Stankovic, Jasna Crnjanski, Ee Jin Teo, David Thomson, Andrew A. Bettiol, Mark B. H. Breese, William Headley, Cristina Giusca, Graham T. Reed and Goran Z. Mashanovich, Silicon photonic waveguides for mid- and long-wave infrared region,
Journal of Materials Science: Materials in Electronics 20 (2009) S159-S163

S. K. Hoi, C. Udalagama, C. H. Sow, F. Watt, and A. A. Bettiol, Microuidic sorting system based on optical force switching,
Applied Physics B-Lasers and Optics 97 (2009) 859-865

2008

Ee Jin Teo, Andrew A. Bettiol, Mark B. H. Breese, Pengyuan Yang, Goran Z. Mashanovich, William R. Headley, Graham T. Reed, Daniel J. Blackwood, Three-dimensional control of optical waveguide fabrication in silicon, Optics Express 16 (2008) 573-578


J. A. van Kan, F. Zhang, C. Zhang, A. A. Bettiol and F. Watt, Exposure parameters in Proton Beam Writing for Hydrogen SilsesQuioxane,
Nuclear Instruments & Methods in Physics Research B 266 (2008) 1676-1679

J. A. van Kan, F. Zhang, S. Y. Chiam, T. Osipowicz, A. A. Bettiol and F. Watt, Proton beam writing: a platform technology for nanowire production,
Microsystem Technologies 14 (2008) 1343-1348

Venugopal Rao, A.A. Bettiol and F. Watt, Characterization of channel waveguides and tunable microlasers in SU8 doped with Rhodamine B fabricated using proton beam writing,
Journal of Physics D: Applied Physics 41 (2008) 192002

G. Z. Mashanovich, M. Milosevic, P. Matavulj, S. Stankovic, B. Timotijevic, P. Y. Yang, E. J. Teo, M. B. H. Breese, A. A. Bettiol and G T Reed, Silicon photonic waveguides for different wavelength regions,
Semiconductor Science and Technology 23 (2008) 064002

Xie, X, HJ Chung, D Bandyopadhyay, C H Sow, A A Bettiol and A T S Wee, Two coexisting modes in field-assisted AFM nanopatterning of thin polymer films,
Macromolecular Chemistry and Physics 209 (2008) 1358-1366

H. L. Zhou, P. G. Shao, S. J. Chua, J. A. van Kan, A.A. Bettiol, T. Osipowicz, K.F. Ooi, G. K. L. Goh and F. Watt, Selective growth of ZnO nanorod arrays on a GaN/sapphire substrate using a proton beam written mask,
Crystal Growth and Design 8 (2008) 4445-4448

2007

S. Venugopal Rao, A. A. Bettiol, K. C. Vishnubhatl, S. N. B. Bhakth, D. Narayana Rao, and F. Watt, Fabrication and characterization of microcavity lasers in Rhodamine B doped SU8 using high energy proton beam, Applied Physics Letters 90 (2007) 101115


Pengyuan Yang, Goran Mashanovic, Immaculada Gomez-Morilla, William Headley Graham Reed , Ee Jin Teo, Daniel Blackwood, Mark Breese, Andrew Bettiol, Free Standing Waveguides in Silicon,
Applied Physics Letters 90 (2007) 241109

J. A. van Kan, P. G. Shao, K. Ansari, A. A. Bettiol, T. Osipowicz and F. Watt, Proton Beam Writing: A Tool for High-Aspect Ratio Mask Production,
Microsystems Technologies 13 (2007) 431-434

M. Cholewa, H. O. Moser, Lie Huang, Shu Ping Lau, Jinkyoung Yoo, Sung Jin An, Gyu-Chul Yi, Gao Xingyu, A. T. S. Wee, A. A. Bettiol, F. Watt, B. Fischer, Secondary electron emission properties of III-nitride/ZnO coaxial heterostructures under ion and X-ray bombardment,
Nuclear Instruments & Methods in Physics Research B 254 (2007) 55-58

F. C. Cheong, B. Varghese, S. Sindhu, C. M. Liu, S. Valiyaveettil, A. A. Bettiol, J. A. van Kan, F. Watt, C. T. Lim, C. H. Sow, Direct removal of SU-8 using focused laser writing,
Applied Physics A: Materials Science and Processing 87 (2007) 71-76

F. Watt, M. B. H. Breese, A. A. Bettiol and J. A. van Kan, Proton Beam Writing,
Materials Today 10 (June 2007) 20-29

Ren Minqin, Liu Ping, J. A. van Kan, A. A. Bettiol, H. J. Whitlow, T Wohland, T Osipowicz and F. Watt, Nano-imaging of single cells using STIM,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 124-129

J. A. van Kan, L. P. Wang, P. G. Shao, A. A. Bettiol and F. Watt, High aspect ratio PDMS replication through proton beam fabricated Ni masters,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 353-356

A. A. Bettiol, C. N. B. Udalagama, E. J. Teo, J. A. van Kan and F. Watt, Embedded photonic structures fabricated in photosensitive glass using proton beam writing,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 357-361

P. G. Shao, J. A. Van Kan, L. P. Wang, K. Ansari, A. A. Bettiol and F. Watt, Rapid prototyping of micro/nano poly (methyl methacrylate) fluidic system using proton beam writing,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 362-365

E. J. Teo, M. B. H. Breese, A. A. Bettiol, F. Champeaux, T.L.S.L. Wijesinghe and D. J. Blackwood, Tunable color emission from patterned porous silicon ion beam writing,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 378-383

C. N. B. Udalagama, A. A. Bettiol and F. Watt, A Monte Carlo Study of the Extent of Proximity Effects in E-Beam and P-Beam Writing of PMMA,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 384-389

C. N. B. Udalagama, A. A. Bettiol, J. A. van Kan, Teo Ee Jin, M. B. H. Breese and F. Watt, The Rapid Secondary Electron Imaging System of the Proton Beam Writer at CIBA,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 390-395

J. A. van Kan, A. A. Bettiol and F. Watt, Hydrogen silsesquioxane a next generation resist for Proton Beam Writing at the 20 nm Level,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 396-399

L.P. Wang, P. G. Shao, J. A. Van Kan, K. Ansari, A. A. Bettiol, F. Watt, T. Wohland, X. T. Pan, Fabrication of nanofluidic devices utilizing Proton Beam Writing and Thermal bonding Techniques,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 450-454

J. A. van Kan, A. A. Bettiol, M. S. M. Saifullah, K. R. V. Subramanian, M. E. Welland and F. Watt, New Resists for Proton Beam Writing,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 460-463

R. K. Dutta, J. A. van Kan, A. A. Bettiol, F. Watt, Polymer Microlens Replication by Nanoimprint Lithography using Proton Beam Fabricated Ni Stamps,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 464-467

P. G. Shao, J. A. van Kan, K. Ansari, A. A. Bettiol and F. Watt, Poly (dimethyl siloxane) micro/nano structure replication using proton beam written masters,
Nuclear Instruments & Methods in Physics Research B 260 (2007) 479-482

2006

E. J. Teo, M. B. H. Breese, A. A. Bettiol, D. Mangaiyarkarasi, F. Champeaux, F. Watt and D. Blackwood, Multicolour Photoluminescence from Porous Silicon using Focused High-energy Helium Ions, Advanced Materials 18 (2006) 51-55


A. A. Bettiol, S. Venugopal Rao, T. C. Sum, J. A. van Kan, F. Watt, Fabrication of optical waveguides using proton beam writing,
Journal of Crystal Growth 288 (2006) 209-212

Hong Jing Chung, Xian Ning Xie, Chorng Haur Sow, Andrew Anthony Bettiol and Andrew Thye Shen Wee, Polymeric conical structure formation by probe-induced electrohydrodynamical nanofluidic motion,
Applied Physics Letters 88 (2006) 023116

M. B. H. Breese, F.J.T. Champeaux, E. J. Teo, A. A. Bettiol and D. Blackwood, Hole transport through proton-irradiated p-type silicon wafers during electrochemical anodisation,
Physical Review B 73 (2006) 035428

F. C. Cheong, C. H. Sow, A. T. S. Wee, P. Shao, A. A. Bettiol, J. A. van Kan, F. Watt, Optical travelator: Transport and Sorting of Colloidal Microspheres with Line Optical Tweezers,
Applied Physics B: Lasers and Optics 83 (2006) 121-125

P. G. Shao, J. A. Van Kan, L.P. Wang, K. Ansari, A. A. Bettol, F. Watt, Fabrication of enclosed nano-channels in PMMA using proton beam writing and thermal bonding,
Applied Physics Letters 88 (2006) 093515

Jeroen A. van Kan, Andrew A. Bettiol and Frank Watt, Proton Beam Writing of 3D Nanostructures in Hydrogen SilsesQuioxane,
Nano Letters 6 (2006) 579-582

A. A. Bettiol, S. Venugopal Rao, E. J. Teo, J. A. van Kan and Frank Watt, Fabrication of buried channel waveguides in photosensitive glass using proton beam writing,
Applied Physics Letters 88 (2006) 171106

K. A. Mahabadi, I. Rodriguez, S. C. Haur, J. A. van Kan, A. A. Bettiol and F. Watt, Fabrication of PMMA micro- and nano-fluidic channels by proton beam writing: electrokinetic and morphological characterization,
Journal of Micromechanics and Microengineering 16 (2006) 1170-1180

E. J. Teo, D. Mangaiyarkarasi, M. B. H. Breese, A. A. Bettiol, F. Champeaux, F. Watt and D. Blackwood Fabrication of Patterned Porous Silicon using high-energy ion irradiation,
Journal of Porous Materials 13 (2006) 259-261

Kambiz Ansari Mahabadi, Jeroen Anton van Kan, Andrew Anthony Bettiol, and Frank Watt, Stamps for nanoimprint lithography fabricated by proton beam writing and nickel electroplating,
Journal of Micromechanics and Microengineering 16 (2006) 1967-1974

T. C. Sum, A. A. Bettiol, C. Florea and F. Watt,T. C. Sum, A. A. Bettiol, C. Florea and F. Watt, Proton Beam Writing of Poly-methylmethacrylate Buried Channel Waveguides,
Journal of Lightwave Technology 24 (2006) 3803-3809