John W Hardy

1.7k total citations · 1 hit paper
21 papers, 1.1k citations indexed

About

John W Hardy is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Biomedical Engineering. According to data from OpenAlex, John W Hardy has authored 21 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Atomic and Molecular Physics, and Optics, 12 papers in Electrical and Electronic Engineering and 8 papers in Biomedical Engineering. Recurrent topics in John W Hardy's work include Adaptive optics and wavefront sensing (18 papers), Optical Systems and Laser Technology (10 papers) and Advanced optical system design (5 papers). John W Hardy is often cited by papers focused on Adaptive optics and wavefront sensing (18 papers), Optical Systems and Laser Technology (10 papers) and Advanced optical system design (5 papers). John W Hardy collaborates with scholars based in United States. John W Hardy's co-authors include J.E. Lefebvre, C. L. Koliopoulos, Laird A. Thompson, J. Feinleib, Timothy E. McKnight and Richard H. Hudgin and has published in prestigious journals such as Physics Today, Proceedings of the IEEE and IEEE Journal of Quantum Electronics.

In The Last Decade

John W Hardy

20 papers receiving 1.0k 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.

Adaptive Optics for Astronomical Telescopes

1998 652 citations John W Hardy profile →

Peers

John W Hardy

AMPO

EEE

BE

CVPR

AA

Robert K. Tyson United States

Roland V. Shack United States

Glenn A. Tyler United States

Jean‐Marc Conan France

Sergio R. Restaino United States

David L. Shealy United States

Manuel P. Cagigal Spain

Changhui Rao China

Michael Lloyd‐Hart United States

Robert A. Gonsalves United States

Robert K. Tyson United States

John W Hardy

1.3k ×1.4

AMPO

946 ×1.6

EEE

661 ×1.3

BE

208 ×0.9

CVPR

69 ×0.6

AA

Citations per year, relative to John W Hardy John W Hardy (= 1×) peers Robert K. Tyson

Countries citing papers authored by John W Hardy

Since Specialization

Citations

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

Fields of papers citing papers by John W Hardy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John W Hardy. 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 W Hardy. The network helps show where John W Hardy may publish in the future.

Co-authorship network of co-authors of John W Hardy

This figure shows the co-authorship network connecting the top 25 collaborators of John W Hardy. A scholar is included among the top collaborators of John W Hardy 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 W Hardy. John W Hardy 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

1.

Hardy, John W & Laird A. Thompson. (2000). Adaptive Optics for Astronomical Telescopes. Physics Today. 53(4). 69–69. 41 indexed citations

2.

Hardy, John W. (1998). Adaptive Optics for Astronomical Telescopes. 652 indexed citations breakdown →

3.

Hardy, John W & Timothy E. McKnight. (1997). Accurate, reliable control of process gases by mass flow controllers. University of North Texas Digital Library (University of North Texas). 1 indexed citations

4.

Hardy, John W. (1994). Twenty Years of Active and Adaptive Optics. European Southern Observatory Conference and Workshop Proceedings. 48. 29. 1 indexed citations

5.

Hardy, John W, et al.. (1994). <title>Wavefront compensation using active lenses</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 2201. 77–87. 3 indexed citations

6.

Hardy, John W. (1991). <title>Adaptive optics: a progress review</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 1542. 2–17. 31 indexed citations

7.

Hardy, John W. (1989). Instrumental Limitations In Adaptive Optics For Astronomy. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 1114. 2–2. 2 indexed citations

8.

Hardy, John W, et al.. (1987). Shearing Interferometry: A Flexible Technique For Wavefront Measurement. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 816. 180–180. 8 indexed citations

9.

Hardy, John W. (1981). Active optics in astronomy.. 25–38. 1 indexed citations

10.

Hardy, John W. (1980). Solar imaging experiment. Defense Technical Information Center (DTIC). 3 indexed citations

11.

Hardy, John W. (1979). Adaptive optics: A decade of progress. IEEE Journal of Quantum Electronics. 15(9). 980–980. 1 indexed citations

12.

Hardy, John W, et al.. (1979). Active Control for Michelson Stellar Interferometers. International Astronomical Union Colloquium. 50. 10–1. 1 indexed citations

13.

Hardy, John W, et al.. (1978). <title>Historical Review Of Adaptive Optics Technology</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 141. 2–10. 1 indexed citations

14.

Hardy, John W. (1978). The role of active optics in large telescopes.. 455–465. 1 indexed citations

15.

Hardy, John W. (1978). Active optics: A new technology for the control of light. Proceedings of the IEEE. 66(6). 651–697. 220 indexed citations

16.

Hardy, John W & Richard H. Hudgin. (1978). <title>A Comparison Of Wavefront Sensing Systems</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 141. 67–73. 2 indexed citations

17.

Hardy, John W. (1978). Correction to "Active optics: A new technology for the control of light". Proceedings of the IEEE. 66(10). 1287–1287. 1 indexed citations

18.

Hardy, John W, J.E. Lefebvre, & C. L. Koliopoulos. (1977). Real-time atmospheric compensation. Journal of the Optical Society of America. 67(3). 360–360. 163 indexed citations

19.

Feinleib, J. & John W Hardy. (1976). <title>Wideband Adaptive Optics For Imaging</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 75. 103–108. 4 indexed citations

20.

Hardy, John W. (1975). Real-time optical wavefront correction. 1. 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.

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