R.B. Greegor

5.2k total citations · 1 hit paper
90 papers, 4.3k citations indexed

About

R.B. Greegor is a scholar working on Materials Chemistry, Aerospace Engineering and Radiation. According to data from OpenAlex, R.B. Greegor has authored 90 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Materials Chemistry, 20 papers in Aerospace Engineering and 19 papers in Radiation. Recurrent topics in R.B. Greegor's work include X-ray Spectroscopy and Fluorescence Analysis (17 papers), Nuclear materials and radiation effects (16 papers) and Metamaterials and Metasurfaces Applications (15 papers). R.B. Greegor is often cited by papers focused on X-ray Spectroscopy and Fluorescence Analysis (17 papers), Nuclear materials and radiation effects (16 papers) and Metamaterials and Metasurfaces Applications (15 papers). R.B. Greegor collaborates with scholars based in United States, Australia and United Kingdom. R.B. Greegor's co-authors include F. W. Lytle, Claudio G. Parazzoli, M. Tanielian, Farrel W. Lytle, Joe Wong, K. Li, Benjamin E. C. Koltenbah, D. R. Sandstrom, A. J. Panson and E. C. Marques and has published in prestigious journals such as Science, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

R.B. Greegor

89 papers receiving 4.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Experimental Verification and Simulation of Negative Index of Refraction Using Snell’s Law

2003 650 citations Claudio G. Parazzoli, R.B. Greegor et al. Physical Review Letters profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R.B. Greegor United States	32	1.8k	1.3k	829	811	543	90	4.3k
P. W. M. Jacobs Canada	37	4.0k 2.2×	596 0.4×	1.1k 1.3×	454 0.6×	337 0.6×	262	5.6k
Thomas C. Hansen France	45	4.5k 2.4×	1.7k 1.3×	906 1.1×	717 0.9×	388 0.7×	311	7.8k
A. Wiedenmann Germany	34	1.4k 0.8×	766 0.6×	854 1.0×	253 0.3×	974 1.8×	205	3.6k
V. Honkimäki France	34	2.8k 1.5×	521 0.4×	866 1.0×	158 0.2×	831 1.5×	183	5.5k
Satoru Tanaka Japan	42	4.6k 2.5×	905 0.7×	1.3k 1.6×	676 0.8×	882 1.6×	568	8.9k
G. Vaughan France	52	4.4k 2.4×	1.5k 1.1×	412 0.5×	210 0.3×	499 0.9×	243	8.5k
Susumu Ikeda Japan	32	1.8k 1.0×	682 0.5×	878 1.1×	177 0.2×	741 1.4×	278	4.1k
G.J. Cuello France	35	2.8k 1.5×	1.0k 0.8×	599 0.7×	122 0.2×	431 0.8×	258	4.8k
A. Nørlund Christensen Denmark	40	3.2k 1.7×	723 0.5×	606 0.7×	173 0.2×	354 0.7×	236	5.7k
Yoshio Waseda Japan	48	7.6k 4.2×	1.3k 0.9×	1.1k 1.3×	719 0.9×	1.0k 1.9×	593	12.7k

Countries citing papers authored by R.B. Greegor

Since Specialization

Citations

This map shows the geographic impact of R.B. Greegor'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 R.B. Greegor with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R.B. Greegor more than expected).

Fields of papers citing papers by R.B. Greegor

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R.B. Greegor. 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 R.B. Greegor. The network helps show where R.B. Greegor may publish in the future.

Co-authorship network of co-authors of R.B. Greegor

This figure shows the co-authorship network connecting the top 25 collaborators of R.B. Greegor. A scholar is included among the top collaborators of R.B. Greegor based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R.B. Greegor. R.B. Greegor is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Greegor, R.B., et al.. (2010). Compact waveguide bandpass and bandstop filters using negative index material concepts. Microwave and Optical Technology Letters. 52(10). 2336–2339. 5 indexed citations

Erentok, Aycan, Richard W. Ziolkowski, J. A. Nielsen, et al.. (2007). Low frequency lumped element-based negative index metamaterial. Applied Physics Letters. 91(18). 23 indexed citations

Parazzoli, Claudio G., et al.. (2006). Eikonal equation for a general anisotropic or chiral medium: application to a negative-graded index-of-refraction lens with an anisotropic material. Journal of the Optical Society of America B. 23(3). 439–439. 14 indexed citations

Parazzoli, Claudio G., R.B. Greegor, K. Li, Benjamin E. C. Koltenbah, & M. Tanielian. (2003). Experimental Verification and Simulation of Negative Index of Refraction Using Snell’s Law. Physical Review Letters. 90(10). 107401–107401. 650 indexed citations breakdown →

Koltenbah, Benjamin E. C., Claudio G. Parazzoli, R.B. Greegor, & D.H. Dowell. (2002). PARMELA_B: a new version of PARMELA with coherent synchrotron radiation effects and a finite difference space charge routine. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 487(3). 249–267. 5 indexed citations

Greegor, R.B., F. W. Lytle, G. W. Arnold, & Rodney C. Ewing. (1990). Pb-implanted SrTiO3 analyzed using Rutherford backscattering and surface sensitive EXAFS/XANES spectroscopy. Journal of Non-Crystalline Solids. 122(2). 121–132. 6 indexed citations

Huggins, Frank E., G.P. Huffman, Naresh Shah, et al.. (1989). In Situ XAFS studies of catalyzed pyrolysis and gasification reactions of lignite. Physica B Condensed Matter. 158(1-3). 178–179. 3 indexed citations

Hansen, Lee D., et al.. (1989). Chemical characterization of vanadium, nickel, and arsenic in oil fly-ash samples using EXAFS and XANES spectroscopy. Physica B Condensed Matter. 158(1-3). 247–248. 8 indexed citations

Greegor, R.B., F. W. Lytle, Bryan C. Chakoumakos, et al.. (1989). Application of various XAFS techniques to the investigation of structurally damaged materials. Physica B Condensed Matter. 158(1-3). 498–500. 5 indexed citations

10.

Huffman, G.P., Frank E. Huggins, Dipankar Bhattacharyya, et al.. (1988). EXAFS investigation of organic sulfur in coal. 1 indexed citations

11.

Huffman, G.P., et al.. (1986). Investigation of alkali and alkaline earth coal gasification catalysts by EXAFS spectroscopy. Fuel. 65(10). 1339–1344. 11 indexed citations

12.

Lumpkin, G. R., Rodney C. Ewing, Bryan C. Chakoumakos, et al.. (1986). Alpha-recoil damage in zirconolite (CaZrTi₂O₇). Journal of materials research/Pratt's guide to venture capital sources. 1(4). 564–576. 79 indexed citations

13.

Marques, E. C., et al.. (1984). Multiple scattering effects in EXAFS: Comparison between theory and experiment for Pt metal. The Journal of Chemical Physics. 81(6). 2599–2604. 13 indexed citations

14.

Greegor, R.B., et al.. (1984). Ti-site geometry in metamict, annealed and synthetic complex Ti-Nb-Ta oxides by X-ray absorption spectroscopy. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 1(2-3). 587–594. 31 indexed citations

15.

Greegor, R.B., et al.. (1983). Preliminary Investigation of Ti-Site Geometry in Lunar Volcanic and Impact Glasses by X-Ray Absorption Spectroscopy. LPI. 257–258. 3 indexed citations

16.

STULTS, B. R., Robert M. Friedman, Karl E. Koenig, et al.. (1981). Homogeneous asymmetric catalysis: structural studies of catalytic intermediates using extended x-ray absorption fine structure. Journal of the American Chemical Society. 103(11). 3235–3237. 22 indexed citations

17.

Greegor, R.B.. (1980). Morphology of supported metal clusters: Determination by EXAFS and chemisorption. Journal of Catalysis. 63(2). 476–486. 248 indexed citations

18.

Sandstrom, D. R., Farrel W. Lytle, P. S. Wei, et al.. (1980). Coordination of Ti in TiO2SiO2 glass by X-ray absorption spectroscopy. Journal of Non-Crystalline Solids. 41(2). 201–207. 101 indexed citations

19.

Lytle, F. W., P. S. Wei, R.B. Greegor, G. H. Via, & J. H. Sinfelt. (1979). Effect of chemical environment on magnitude of x-ray absorption resonance at L I I I edges. Studies on metallic elements, compounds, and catalysts. The Journal of Chemical Physics. 70(11). 4849–4855. 239 indexed citations

20.

Greegor, R.B., et al.. (1974). Real-Time Space and Nuclear Effects on Solar Cells (Accelerated Evaluation Methods).. Defense Technical Information Center (DTIC). 2 indexed citations

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.

Explore authors with similar magnitude of impact