John F. O’Hara

9.2k citations

130 papers · 7.2k indexed · 2 hit papers · h-index 36

Electronic, Optical and Magnetic Materials top 0.2%
Electrical and Electronic Engineering top 1%
Aerospace Engineering top 0.1%
Biomedical Engineering top 1%
Atomic and Molecular Physics, and Optics top 2%

Co-authors: Antoinette J. Taylor Abul K. Azad Hou‐Tong Chen Christopher L. Holloway Edward F. Kuester Richard D. Averitt David R. Smith James C. Booth
Topics: Terahertz technology and applications (66 papers)Metamaterials and Metasurfaces Applications (59 papers)Plasmonic and Surface Plasmon Research (26 papers)
Cited by: Electronic, Optical and Magnetic Materials Aerospace Engineering Electrical and Electronic Engineering
Journals: Physical Review LettersSHILAP Revista de lepidopterologíaApplied Physics Letters
Partner nations: United States China Ireland

In The Last Decade

John F. O’Hara

119 papers receiving 6.8k 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.

An Overview of the Theory and Applications of Metasurfaces: The Two-Dimensional Equivalents of Metamaterials

2012 1.6k citations John F. O’Hara et al. profile →
Experimental demonstration of frequency-agile terahertz metamaterials

2008 699 citations Hou‐Tong Chen, John F. O’Hara et al. profile →

Peers

Countries citing papers authored by John F. O’Hara

Since Specialization

Citations

This map shows the geographic impact of John F. O’Hara'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 John F. O’Hara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John F. O’Hara more than expected).

Fields of papers citing papers by John F. O’Hara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John F. O’Hara. 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 John F. O’Hara. The network helps show where John F. O’Hara may publish in the future.

Co-authorship network of co-authors of John F. O’Hara

This figure shows the co-authorship network connecting the top 25 collaborators of John F. O’Hara. A scholar is included among the top collaborators of John F. O’Hara 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 John F. O’Hara. John F. O’Hara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Early School Leaving by Design—Prevention, Intervention and Compensation—A Policy Analysis of Early School Leaving and Underachievement Interventions in Europe 2025 ·Education Sciences ·Martin Brown,Joe O’Hara,(unknown),Gerry McNamara,John F. O’Hara,(unknown),(unknown),(unknown),(unknown),Michael McNamara	0
2	Free-Space Optical Channel Turbulence Prediction: A Machine Learning Approach 2025 ·IEEE Communications Letters ·(unknown),(unknown),(unknown),Arsalan Ahmad,Sabit Ekin,John F. O’Hara	0
3	Cryogenic Thermo-Optical Coefficient of SU-8 Measured Using a Racetrack Resonator at 850 nm 2024 ·Photonics ·(unknown),(unknown),John F. O’Hara,(unknown),(unknown),E. Pelucchi,Liam O’Faoláin	1
4	A Perspective on the Impact of Group Delay Dispersion in Future Terahertz Wireless Systems 2024 ·IEEE Communications Magazine ·(unknown),Sabit Ekin,John F. O’Hara	0
5	Artificial dielectric beam-scanning prism for the terahertz region 2023 ·Scientific Reports ·(unknown),(unknown),Masaya Nagai,John F. O’Hara,Rajind Mendis	1
6	School Library Provision in the Republic of Ireland 2023 ·School Libraries Worldwide ·(unknown),Shivaun O’Brien,John F. O’Hara	2
7	Quality assuring an ethical education curriculum for schools in Ireland 2023 ·SN Social Sciences ·Shivaun O’Brien,John F. O’Hara,Gerry McNamara,Joe O’Hara	3
8	A Wideband Millimeter-Wave Communication and Sensing Testbed for 75–500 GHz 2023 ·(unknown),Wooyeol Choi,John F. O’Hara	4
9	The management of symbolic raw materials in the Late Upper Paleolithic of South-Western France: a shell ornaments perspective 2022 ·SHILAP Revista de lepidopterología ·Solange Rigaud,John F. O’Hara,(unknown),(unknown),Patrick Paillet	3
10	Gesture Recognition Using Reflected Visible and Infrared Lightwave Signals 2021 ·IEEE Transactions on Human-Machine Systems ·Li Yu,(unknown),(unknown),John F. O’Hara,Christopher Crick,Sabit Ekin	23
11	Raman Spectroscopy to Monitor Post-Translational Modifications and Degradation in Monoclonal Antibody Therapeutics 2020 ·Analytical Chemistry ·(unknown),(unknown),Thomas Powell,John F. O’Hara,Mariangela Spitali,Royston Goodacre,Andrew J. Doig	43
12	Remote N₂O gas sensing by enhanced 910-m propagation of THz pulses 2019 ·Optics Express ·(unknown),Kiwon Moon,Kyung Hyun Park,John F. O’Hara,D. Grischkowsky,Tae‐In Jeon	6
13	The Aurignacian Site of the Abri de la Souquette (commune de Sergeac, Dordogne): A History of Archeology 2015 ·Palethnologie ·John F. O’Hara,Randall White,(unknown),Thomas Higham,(unknown)	2
14	A broadband planar terahertz metamaterial with nested structure 2011 ·Optics Express ·Dibakar Roy Chowdhury,Ranjan Singh,Matthew T. Reiten,Hou‐Tong Chen,Antoinette J. Taylor,John F. O’Hara,Abul K. Azad	46
15	Orientation Dependent Far-Infrared Terahertz Absorptions in Single Crystal Pentaerythritol Tetranitrate (PETN) Using Terahertz Time-Domain Spectroscopy 2011 ·The Journal of Physical Chemistry A ·Von Whitley,Daniel E. Hooks,Kyle Ramos,(unknown),John F. O’Hara,Abul K. Azad,Antoinette J. Taylor,Jeffrey Barber,Richard D. Averitt	11
16	Antireflection Coating Using Metamaterials and Identification of Its Mechanism 2010 ·Physical Review Letters ·Hou‐Tong Chen,Jiangfeng Zhou,John F. O’Hara,Fanglin Chen,Abul K. Azad,Antoinette J. Taylor	336
17	Metamaterials for THz polarimetric devices 2009 ·Optics Express ·Xomalin G. Peralta,E. I. Smirnova,Abul K. Azad,Hou‐Tong Chen,Antoinette J. Taylor,Igal Brener,John F. O’Hara	77
18	Electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays 2008 ·Optics Express ·Hou‐Tong Chen,Hong Lü,Abul K. Azad,Richard D. Averitt,A. C. Gossard,S. A. Trugman,John F. O’Hara,Antoinette J. Taylor	103
19	Effects of Microstructure Variations on Macroscopic Terahertz Metafilm Properties 2007 ·Active and Passive Electronic Components ·John F. O’Hara,E. I. Smirnova,Abul K. Azad,Hou‐Tong Chen,Antoinette J. Taylor	46
20	Ultrahigh-Vacuum Reaction Apparatus to Study Synchrotron-Radiation-Stimulated Processes 1998 ·Journal of Synchrotron Radiation ·Shinya Hirano,Akitaka Yoshigoe,Mitsuru Nagasono,Kazuhiko Mase,John F. O’Hara,(unknown),Y. Takeda,T. Urisu	4

About John F. O’Hara

John F. O’Hara is a scholar working on Electronic, Optical and Magnetic Materials, Acoustics and Ultrasonics and Electrical and Electronic Engineering, having authored 130 papers that have together received 7.2k indexed citations. Recurring topics across this work include Terahertz technology and applications (66 papers), Metamaterials and Metasurfaces Applications (59 papers) and Plasmonic and Surface Plasmon Research (26 papers). The work is most often cited by research in Electronic, Optical and Magnetic Materials (5.3k citations), Aerospace Engineering (3.4k citations) and Electrical and Electronic Engineering (3.5k citations). John F. O’Hara has collaborated with scholars based in United States, China and Ireland. Frequent co-authors include Antoinette J. Taylor, Abul K. Azad, Hou‐Tong Chen, Christopher L. Holloway, Edward F. Kuester, Richard D. Averitt, David R. Smith, James C. Booth, Joshua A. Gordon and Willie J. Padilla. Their work appears in journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Applied Physics Letters.

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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