San Francisco, 2011

Vífilstaðir, Iceland, 2010

My home town - Garðabær, Iceland 2011

New Year's Eve in Iceland, 2010

About

Welcome to a new helgiskuli.com!

I am a PhD candidate in Electrical Engineering under supervision of Prof. Thomas Szkopek at Nanoelectronic Devices and Materials Group, McGill University. My research is focused on electrical and optical properties of graphene and high frequency graphene devices. I obtained my M.Eng. degree from McGill University in 2009 and in 2007 I graduated with B.Sc. in Electrical and Computer Engineering and B.Sc. in Physics.

My CV can be downloaded here.

Publications

Refereed Journal Papers

7. H.S. Skulason, V.-H. Nguyen, A. Guermoune, V. Sridharan, M. Siaj, C. Caloz, and T. Szkopek, “110 GHz measurement of large-area graphene integrated in low-loss microwave structures” submitted.

6. A. Guermoune, T. Chari, F.B. Popescu, S. Sabri, J. Guillemette, H.S. Skulason, T. Szkopek, and M. Siaj, “Chemical vapor deposition synthesis of graphene on copper with methanol, ethanol, and propanol precursors” accepted at Carbon. [ link ]

5. P. E. Gaskell, H. S. Skulason, W. Strupinski and T. Szkopek, “High spatial resolution ellipsometer for characterization of epitaxial graphene”, Opt. Lett. 35, 3336 (2010) [ link ]

4. H. S. Skulason, P. E. Gaskell and T. Szkopek, “Optical reflection and transmission properties of exfoliated graphite from a graphene monolayer to several hundred graphene layers”, Nanotechnology 21, 295709 (2010) [ link ]

3. P.E. Gaskell, H.S. Skulason, C. Rodenchuk, and T. Szkopek, “Counting Graphene Layers on Glass via Optical Reflection Microscopy ”, Appl. Phys. Lett. 94, 143101 (2009) [ link ]

2. Y. Au, H. S. Skulason, S. Ingvarsson, L. J. Klein and H. F. Hamann. “Thermal radiation spectra from individual subwavelength micro-heaters”, Phys. Rev. B. 78, 085402 (2008) [ link ]

1. H. S. Skulason, S. Ingvarsson, “Rafgas i orbylgjuofni (e. Microwave Oven Plasma Etcher)“ Timarit um raunvisindi og staerdfraedi (e. Icelandic Journal of Science and Math), 4 (2) (2006)


Selected Conferences and Meetings

9. H.S. Skulason, H.V. Nguyen, A. Guermoune, M. Siaj, C. Caloz, and T. Szkopek, “High-Frequency Coplanar Waveguide Graphene Circuit Components on Low-Loss Dielectric Substrates”, Graphene Technology: Production, Assembly and Applications, 12th International Conference on Science and Applications of Carbon Nanotubes, Cambridge, UK, 11-16 July 2011.

8. H.S. Skulason, H.V. Nguyen, A. Guermoune, M. Siaj, C. Caloz, and T. Szkopek, “High-Frequency Coplanar Waveguide Graphene Circuit Components on Low-Loss Dielectric Substrates”, Graphene: the Road to Applications, Boston, 11-13 May 2011.

7. P. Gaskell, T. Chari, H. Skulason, M. Siaj and T. Szkopek, “Photochemical Reduction of Graphene Oxide by UV Photolithography”, Graphene Satellite Symposium, 11th International Conference on Science and Applications of Carbon Nanotubes, Montreal, 27-28 June 2010.

6. H. Skulason, P. Gaskell, and T. Szkopek, “Optical reflection and transmission properties of exfoliated graphite versus thickness from a graphene monolayer to several hundred graphene layers” Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science, San Jose, May 2010.

5. P. Gaskell, H. Skulason, and T. Szkopek “Optical Reflectometry and Ellipsometry Measurements of Graphene and Thin Graphitic Films on Bulk Low-Index Substrates” IEEE 3rd International NanoElectronics Conference, Hong Kong, January 2010.

4. T. Szkopek, H. Skulason, P. Gaskell, “Optical properties of graphitic films from a graphene monolayer to bulk graphite” Annual Meeting of GDR-I GNT (Graphene and Nanotubes: science and applications), Coma-ruga, Spain, 19-23 October 2009.

3. T. Szkopek, P. Gaskell, H. Skulason, and C. Rodenchuk, “Optical Conductivity Measurements of Graphene on Glass”, European Science Foundation, Graphene Week, Obergurgl, Austria, March 2009.

2. H.S. Skulason, P.E. Gaskell, C. Rodenchuk, and T. Szkopek, “Counting Graphene Layers on Glass by Optical Reflection Microscopy”, American Physical Society March Meeting, Pittsburgh, 2009.

1. H. S. Skulason and S. Ingvarsson, “Rafgasorbylgjuofn (e. Microwave Plasma Etcher)“, Natural Science Symposium in Reykjavik, March 3-4 2006.

Projects

Microwave Graphene Electronics Microwave Graphene Electronics

Microwave Graphene Electronics

2010 to present. Advisor: Prof. Thomas Szkopek

A multidisciplinary team with Profs. Thomas Szkopek (McGill University), Mohamed Siaj (UQAM) and Christophe Caloz (Ecole-Polytechnique) focused on passive graphene microwave devices. Project includes measuring graphene resistance from 10 MHz to 110 GHz using a coplanar waveguide (CPW).


Optical Properties of Graphene Optical Properties of Graphene

Optical Properties of Graphene

2007 to 2009. Advisor: Prof. Thomas Szkopek

Project was focused characterizing optical properties of graphene in the visible spectrum. Optical properties from one layer of graphene to graphite were calculated and measured. Work was published in Appl. Phys. Lett. 94, 143101 (2009) and Nanotechnology 21, 295709 (2010).


Labview Programs Labview Programs

Labview Programs

Various Labview programs and drivers have been designed and programmed since 2008 to control instruments such as hall measurement, semiconductor parameter analyzers and more.


Optical Antennas Optical Antennas

Optical Antennas

Summer 2007. Advisor: Prof. Snorri Ingvarsson

Main goal of the project was to measure electric field from nano-wires to investigate how wire geometry affects the properties of the antenna at optical frequencies. For details see Y. Au, H. S. Skulason, S. Ingvarsson, L. J. Klein and H. F. Hamann. “Thermal radiation spectra from individual subwavelength micro-heaters”, Phys. Rev. B. 78, 085402 (2008)


Circuit Design Circuit Design

Circuit Design and EBL

Summer 2006. Advisor: Prof. Snorri Ingvarsson

In summer 2006 a circuit was designed to regulate power in a nano wires which were used to research near-field infrared radiation. Also in that summer I assisted a graduate student to use EBL (electron beam lithography) to make devices to capture nano crystals using electric field.


Microwave Plasma Etcher Microwave Plasma Etcher

Microwave Plasma Etcher

Summer 2005. Advisor: Prof. Snorri Ingvarsson

Project entailed building a plasma etcher from a modified commercial microwave oven and a homemade gas handling system. It was designed to be used to clean organic contaminants off a wide range of materials, such as semiconductors, ceramics and metals.


Contact

Contact details:

Helgi Skuli Skulason
Dept. of Electrical and Computer Engineering
McGill University
3480 University Street, rm 609
Montreal, H3A 2A7
Canada
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