Roger Loo

9.9k citations

544 papers · 8.2k · 1 hit paper · h-index 40

Impact in

Electrical and Electronic Engineering top 0.2%
- Advancements in Semiconductor Devices and Circuit Design
- Semiconductor materials and devices
- Photonic and Optical Devices
- solar cell performance optimization
- Advanced Semiconductor Detectors and Materials
Atomic and Molecular Physics, and Optics top 1%
- Semiconductor materials and interfaces
- Semiconductor Quantum Structures and Devices

Papers in

Electrical and Electronic Engineering 474
- Advancements in Semiconductor Devices and Circuit Design 262
- Semiconductor materials and devices 248
- Photonic and Optical Devices 36
- solar cell performance optimization 33
- Silicon and Solar Cell Technologies 16
- 3D IC and TSV technologies 11
Atomic and Molecular Physics, and Optics 200
- Semiconductor materials and interfaces 174
- Semiconductor Quantum Structures and Devices 28

Co-authors: Matty R. Caymax (149 shared papers)Wilfried Vandervorst (85 shared papers)Daniel F. Sievenpiper (8 shared papers)Gregory L. Tangonan (14 shared papers)Marc Heyns (45 shared papers)Yosuke Shimura (45 shared papers)Hugo Bender (70 shared papers)Andriy Yakovitch Hikavyy (114 shared papers)
Journals: Applied Physics Letters (31 papers)Thin Solid Films (30 papers)IEEE Transactions on Electron Devices (22 papers)ECS Journal of Solid State Science and Technology (17 papers)Journal of Applied Physics (16 papers)
Partner nations: Belgium United States Germany

In The Last Decade

Roger Loo

512 papers receiving 7.8k citations

Roger Loo's Hit Papers

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Two-dimensional beam steering using an electrically tunable impedance surface 2003 · 440 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

2003 IEEE Transactions on Antennas and Propagation

Peers

Countries citing papers authored by Roger Loo

Since Specialization

Citations

This map shows the geographic impact of Roger Loo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roger Loo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger Loo more than expected).

Fields of papers citing papers by Roger Loo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger Loo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roger Loo. The network helps show where Roger Loo may publish in the future.

Co-authors

The 25 scholars most cited alongside Roger Loo, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Roger Loo Line = papers co-authored together Roger Loo links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 544 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Two-dimensional beam steering using an electrically tunable impedance surface IEEE Transactions on Antennas and Propagation ·Daniel F. Sievenpiper, James H. Schaffner, Hyok Jae Song, Roger Loo, Gregory L. Tangonan Hit paper breakdown →	2003	440
2	Undoped and in-situ B doped GeSn epitaxial growth on Ge by atmospheric pressure-chemical vapor deposition Applied Physics Letters ·Benjamin Vincent, Federica Gencarelli, Hugo Bender, Clément Merckling, Bastien Douhard, Dirch Hjorth Petersen, Ole Per Hansen, Henrik H. Henrichsen	2011	172
3	GeSn/Ge heterostructure short-wave infrared photodetectors on silicon Optics Express ·Alban Gassenq, Federica Gencarelli, Joris Van Campenhout, Yosuke Shimura, Roger Loo, G. Narcy, Benjamin Vincent, Günther Roelkens	2012	163
4	Loss mitigation in plasmonic solar cells: aluminium nanoparticles for broadband photocurrent enhancements in GaAs photodiodes Scientific Reports ·Nicholas P. Hylton, Xiaofeng Li, Vincenzo Giannini, Kan‐Hua Lee, Nicholas John Ekins‐Daukes, Roger Loo, Dries Vercruysse, Pol Van Dorpe	2013	134
5	Germanium-on-Silicon Mid-Infrared Arrayed Waveguide Grating Multiplexers IEEE Photonics Technology Letters ·Aditya Malik, Muhammad Muneeb, Shibnath Pathak, Yosuke Shimura, Joris Van Campenhout, Roger Loo, Günther Roelkens	2013	126
6	Fabrication and Analysis of a ${\rm Si}/{\rm Si}_{0.55}{\rm Ge}_{0.45}$ Heterojunction Line Tunnel FET IEEE Transactions on Electron Devices ·Amey Mahadev Walke, Anne Vandooren, R. Rooyackers, Daniele Leonelli, Andriy Yakovitch Hikavyy, Roger Loo, Anne S. Verhulst, Kuo-Hsing Kao	2014	123
7	A tunable impedance surface performing as a reconfigurable beam steering reflector IEEE Transactions on Antennas and Propagation ·Daniel F. Sievenpiper, J. Schaffner, Roger Loo, G. L. Tangonan, S. Ontiveros, R. Harold	2002	118
8	Analysis of trap-assisted tunneling in vertical Si homo-junction and SiGe hetero-junction Tunnel-FETs Solid-State Electronics ·Anne Vandooren, Daniele Leonelli, R. Rooyackers, Andriy Yakovitch Hikavyy, K. Devriendt, Marc Demand, Roger Loo, G. Groeseneken	2013	116
9	Crystalline Properties and Strain Relaxation Mechanism of CVD Grown GeSn ECS Journal of Solid State Science and Technology ·Federica Gencarelli, Benjamin Vincent, Jelle Demeulemeester, A. Vantomme, Alain Moussa, Alexis Franquet, Hugo Bender, Johan Meersschaut	2013	109
10	Silicon-Based Photonic Integration Beyond the Telecommunication Wavelength Range IEEE Journal of Selected Topics in Quantum Electronics ·Günther Roelkens, Utsav D. Dave, Alban Gassenq, Nannicha Hattasan, Bart Kuyken, François Léo, Aditya Malik, Muhammad Muneeb	2014	104
11	Ge-on-Si and Ge-on-SOI thermo-optic phase shifters for the mid-infrared Optics Express ·Aditya Malik, Sarvagya P. Dwivedi, Liesbet Van Landschoot, Muhammad Muneeb, Yosuke Shimura, Guy Lepage, Joris Van Campenhout, Wendy Vanherle	2014	99
12	Characterization of GeSn materials for future Ge pMOSFETs source/drain stressors Microelectronic Engineering ·Benjamin Vincent, Yosuke Shimura, Shotaro Takeuchi, Geert Eneman, Andrea Firrincieli, Jelle Demeulemeester, A. Vantomme, Trudo Clarysse	2010	96
13	Site Selective Integration of III–V Materials on Si for Nanoscale Logic and Photonic Devices Crystal Growth & Design ·Mohanchand Paladugu, Clément Merckling, Roger Loo, Olivier Richard, Hugo Bender, Johan Dekoster, Wilfried Vandervorst, Matty R. Caymax	2012	95
14	A model of threading dislocation density in strain-relaxed Ge and GaAs epitaxial films on Si (100) Applied Physics Letters ·G. Wang, Roger Loo, Eddy Roger Simoen, Laurent Souriau, Matty R. Caymax, Marc Heyns, Bart Blanpain	2009	82
15	Photonic wideband array antennas IEEE Transactions on Antennas and Propagation ·Jar J. Lee, Roger Loo, S. Livingston, V.I. Jones, Jack B. Lewis, Huan-Wun Yen, Gregory L. Tangonan, M. Wechsberg	1995	79
16	High Quality Ge Virtual Substrates on Si Wafers with Standard STI Patterning Journal of The Electrochemical Society ·Roger Loo, G. Wang, Laurent Souriau, Jason Lin, Shotaro Takeuchi, Guy Brammertz, Matty R. Caymax	2009	79
17	Impact of fin width on digital and analog performances of n-FinFETs Solid-State Electronics ·Vaidy Subramanian, Abdelkarim Mercha, Bertrand Parvais, Roger Loo, C. Gustin, M. Dehan, Nadine Collaert, Małgorzata Jurczak	2007	75
18	Challenges and opportunities in advanced Ge pMOSFETs Materials Science in Semiconductor Processing ·Eddy Roger Simoen, Jérôme Mitard, Geert Hellings, Geert Eneman, Brice De Jaeger, Liesbeth Johanna Witters, Benjamin Vincent, Roger Loo	2012	73
19	Low-temperature Ge and GeSn Chemical Vapor Deposition using Ge2H6 Thin Solid Films ·Federica Gencarelli, Benjamin Vincent, Laurent Souriau, Olivier Richard, Wilfried Vandervorst, Roger Loo, Matty R. Caymax, Marc Heyns	2011	72
20	GaAs-compatible surface-micromachined RF MEMS switches Electronics Letters ·Daniel J. Hyman, A. E. Schmitz, Brett A. Warneke, Tsung-Yuan Hsu, Juan E Lam, J.J. Brown, J. Schaffner, Andrew A. Walston	1999	69

About Roger Loo

Roger Loo is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Surfaces, Coatings and Films, Biomedical Engineering and Structural Biology, having authored 544 papers that have together received 8.2k indexed citations. Recurring topics across this work include Advancements in Semiconductor Devices and Circuit Design (262 papers), Semiconductor materials and devices (248 papers), Semiconductor materials and interfaces (174 papers), Photonic and Optical Devices (36 papers), solar cell performance optimization (33 papers), Semiconductor Quantum Structures and Devices (28 papers), Silicon and Solar Cell Technologies (16 papers) and 3D IC and TSV technologies (11 papers). The work is most often cited by research in Electrical and Electronic Engineering (6.4k citations), Atomic and Molecular Physics, and Optics (2.4k citations), Structural Biology (49 citations), Aerospace Engineering (531 citations) and Electronic, Optical and Magnetic Materials (237 citations). Roger Loo has collaborated with scholars based in Belgium, United States and Germany. Frequent co-authors include Matty R. Caymax, Wilfried Vandervorst, Daniel F. Sievenpiper, Gregory L. Tangonan, Marc Heyns, Yosuke Shimura, Hugo Bender, Andriy Yakovitch Hikavyy, James H. Schaffner and Geert Eneman. Their work appears in journals such as Applied Physics Letters, Thin Solid Films, IEEE Transactions on Electron Devices, ECS Journal of Solid State Science and Technology and Journal of Applied Physics.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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Roger Loo's Hit Papers

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About Roger Loo

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