W.T. Welford

6.8k total citations · 1 hit paper
123 papers, 4.4k citations indexed

About

W.T. Welford is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Biomedical Engineering. According to data from OpenAlex, W.T. Welford has authored 123 papers receiving a total of 4.4k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Atomic and Molecular Physics, and Optics, 21 papers in Electrical and Electronic Engineering and 20 papers in Biomedical Engineering. Recurrent topics in W.T. Welford's work include Advanced Measurement and Metrology Techniques (11 papers), Optical measurement and interference techniques (10 papers) and Surface Roughness and Optical Measurements (9 papers). W.T. Welford is often cited by papers focused on Advanced Measurement and Metrology Techniques (11 papers), Optical measurement and interference techniques (10 papers) and Surface Roughness and Optical Measurements (9 papers). W.T. Welford collaborates with scholars based in United Kingdom, United States and Italy. W.T. Welford's co-authors include R. Winston, R. Winston, E. Jakeman, J. C. Dainty, Roland Winston, J. O’Gallagher, C. G. Wynne, D. J. Nicholas, C. Harrison Dwight and R.W. Smith and has published in prestigious journals such as Nature, Physics Today and Journal of the Optical Society of America A.

In The Last Decade

W.T. Welford

120 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.

The Principles of Nonlinear Optics

1985 1.7k citations W.T. Welford Physics Bulletin profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W.T. Welford United Kingdom	28	2.2k	1.3k	1.1k	489	454	123	4.4k
H.G. Jerrard United Kingdom	26	2.2k 1.0×	2.0k 1.6×	985 0.9×	325 0.7×	225 0.5×	125	5.0k
L. Rosenfeld Sweden	15	1.8k 0.8×	738 0.6×	851 0.8×	188 0.4×	193 0.4×	55	3.8k
Max Born Germany	7	1.3k 0.6×	959 0.8×	1.1k 1.0×	239 0.5×	243 0.5×	16	3.3k
Max Born United Kingdom	6	3.9k 1.8×	2.9k 2.3×	2.6k 2.4×	688 1.4×	583 1.3×	9	8.7k
David Attwood United States	36	1.9k 0.9×	1.4k 1.1×	771 0.7×	355 0.7×	233 0.5×	160	5.4k
Eugene Hecht United States	13	1.3k 0.6×	939 0.7×	1.1k 1.0×	241 0.5×	272 0.6×	44	3.4k
Arnold J. den Dekker Netherlands	34	842 0.4×	581 0.5×	484 0.4×	255 0.5×	597 1.3×	159	4.2k
Isaac Freund Israel	40	3.6k 1.6×	599 0.5×	2.3k 2.2×	213 0.4×	264 0.6×	147	5.6k
John A. Hoffnagle United States	31	1.9k 0.9×	1.7k 1.3×	669 0.6×	195 0.4×	101 0.2×	107	3.4k
Lambertus Hesselink United States	34	2.8k 1.3×	2.9k 2.3×	1.5k 1.4×	505 1.0×	391 0.9×	212	6.0k

Countries citing papers authored by W.T. Welford

Since Specialization

Citations

This map shows the geographic impact of W.T. Welford'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 W.T. Welford with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites W.T. Welford more than expected).

Fields of papers citing papers by W.T. Welford

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W.T. Welford

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

Welford, W.T., et al.. (1991). Beam shaping system. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 1500. 172–172. 1 indexed citations

2.

O’Gallagher, J., W.T. Welford, & Roland Winston. (1987). Axially symmetric nonimaging flux concentrators with the maximum theoretical concentration ratio. Journal of the Optical Society of America A. 4(1). 66–66. 18 indexed citations

3.

Welford, W.T. & R. Winston. (1982). Upper bound on the efficiency of certain nonimaging concentrators in the physical-optics model. Journal of the Optical Society of America. 72(9). 1244–1244. 3 indexed citations

4.

Lessard, R. A., et al.. (1981). Sea Wave Detection by Optical Fourier Transforms from Seasat SAR Images. Optica Acta International Journal of Optics. 28(3). 283–287. 1 indexed citations

5.

Welford, W.T.. (1981). Optical Instruments and Their Applications. Optica Acta International Journal of Optics. 28(2). 154–154. 2 indexed citations

6.

O’Gallagher, J., et al.. (1980). Design of nonimaging concentrators as second stages in tandem with image-forming first-stage concentrators. 1 indexed citations

7.

Welford, W.T.. (1980). Physical Properties of Optical Materials. Optica Acta International Journal of Optics. 27(9). 1310–1310. 1 indexed citations

8.

Winston, R. & W.T. Welford. (1979). Geometrical vector flux and some new nonimaging concentrators. Journal of the Optical Society of America. 69(4). 532–532. 73 indexed citations

9.

Welford, W.T.. (1979). Surveillance of Environmental Pollution and Resources by Electromagnetic Waves. Optica Acta International Journal of Optics. 26(9). 1136–1136. 2 indexed citations

10.

Welford, W.T.. (1979). Linear Systems, Fourier Transforms and Optics. Electronics and Power. 25(2). 139–139. 159 indexed citations

11.

Welford, W.T., et al.. (1976). Interactive hybrid processing facility for geological and geographical applications (A). Journal of the Optical Society of America A. 66. 171. 1 indexed citations

12.

Welford, W.T.. (1976). Speckle in images*. Journal of the Optical Society of America. 66(11). 1172–1172. 8 indexed citations

13.

Welford, W.T.. (1975). First order statistics of speckle produced by weak scattering media. Optical and Quantum Electronics. 7(5). 413–416. 29 indexed citations

14.

Welford, W.T.. (1974). FILM FLATNESS, LENS DISTORTION, ILLUMINATION AND OTHER MATTERS IN BUBBLE CHAMBER PHOTOGRAPHY. The Photogrammetric Record. 8(44). 167–177. 1 indexed citations

15.

Welford, W.T., et al.. (1971). A method for precision spherometry of concave surfaces. Journal of Physics E Scientific Instruments. 4(12). 1060–1062. 2 indexed citations

16.

Welford, W.T., et al.. (1971). Estimation of the size bubbles in a bubble chamber by contrast measurement. Nuclear Instruments and Methods. 92(2). 229–232. 2 indexed citations

17.

Welford, W.T.. (1969). Optical Instruments and Techniques. Optica Acta International Journal of Optics. 16(5). 665–668. 54 indexed citations

18.

Welford, W.T.. (1969). Fringe visibility and localization in hologram interferometry. Optics Communications. 1(3). 123–125. 13 indexed citations

19.

Welford, W.T.. (1968). A Note on the Skew Invariant of Optical Systems. Optica Acta International Journal of Optics. 15(6). 621–623. 1 indexed citations

20.

Welford, W.T.. (1967). Diffraction: Coherence in Optics. Physics Bulletin. 18(1). 25–26. 9 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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