W. Happer

14.7k total citations · 4 hit papers
210 papers, 11.7k citations indexed

About

W. Happer is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, W. Happer has authored 210 papers receiving a total of 11.7k indexed citations (citations by other indexed papers that have themselves been cited), including 190 papers in Atomic and Molecular Physics, and Optics, 81 papers in Spectroscopy and 15 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in W. Happer's work include Atomic and Subatomic Physics Research (145 papers), Cold Atom Physics and Bose-Einstein Condensates (80 papers) and Quantum, superfluid, helium dynamics (65 papers). W. Happer is often cited by papers focused on Atomic and Subatomic Physics Research (145 papers), Cold Atom Physics and Bose-Einstein Condensates (80 papers) and Quantum, superfluid, helium dynamics (65 papers). W. Happer collaborates with scholars based in United States, Japan and Germany. W. Happer's co-authors include Thad Walker, G. D. Cates, A. C. Tam, B. Saam, Bastiaan Driehuys, B.S. Mathur, H. Tang, Stefan Schaefer, E. Miron and Yuan‐Yu Jau and has published in prestigious journals such as Nature, Science and Physical Review Letters.

In The Last Decade

W. Happer

196 papers receiving 11.1k citations

Hit Papers

Optical Pumping 1972 2026 1990 2008 1972 1997 1994 1984 400 800 1.2k
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.

  1. Optical Pumping
    1972 1.3k citations W. Happer profile →
  2. Spin-exchange optical pumping of noble-gas nuclei
    1997 1.1k citations Thad Walker, W. Happer profile →
  3. Biological magnetic resonance imaging using laser-polarized 129Xe
    1994 819 citations Mitchell S. Albert, G. D. Cates et al. Nature profile →
  4. Polarization of the nuclear spins of noble-gas atoms by spin exchange with optically pumped alkali-metal atoms
    1984 371 citations W. Happer, E. Miron et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
W. Happer 10.9k 5.1k 3.3k 845 640 210 11.7k
Michael Romalis 7.9k 0.7× 907 0.2× 3.0k 0.9× 1.1k 1.3× 378 0.6× 84 8.7k
E. L. Hahn 3.7k 0.3× 3.9k 0.8× 896 0.3× 2.2k 2.6× 2.2k 3.4× 87 7.2k
Thad Walker 9.6k 0.9× 1.8k 0.3× 1.1k 0.3× 354 0.4× 361 0.6× 142 10.1k
Dmitry Budker 13.8k 1.3× 2.3k 0.4× 2.1k 0.6× 2.0k 2.3× 5.1k 8.0× 374 16.9k
A. V. Phelps 4.8k 0.4× 2.2k 0.4× 3.0k 0.9× 487 0.6× 1.5k 2.4× 105 11.3k
Vincent McKoy 10.8k 1.0× 3.6k 0.7× 180 0.1× 226 0.3× 813 1.3× 338 12.0k
R. I. Joseph 2.9k 0.3× 510 0.1× 610 0.2× 399 0.5× 459 0.7× 100 4.8k
L. W. Anderson 2.5k 0.2× 894 0.2× 474 0.1× 418 0.5× 530 0.8× 150 3.6k
A. L. Schawlow 3.9k 0.4× 1.7k 0.3× 185 0.1× 156 0.2× 1.3k 2.1× 144 6.3k
J. E. Lawler 2.8k 0.3× 1.0k 0.2× 637 0.2× 1.5k 1.8× 633 1.0× 268 9.2k

Countries citing papers authored by W. Happer

Since Specialization
Citations

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

Fields of papers citing papers by W. Happer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W. Happer

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

All Works

20 of 20 papers shown
1.
McGuyer, B. H., Robert Marsland, Ben A. Olsen, & W. Happer. (2012). Cusp Kernels for Velocity-Changing Collisions. Physical Review Letters. 108(18). 183202–183202. 11 indexed citations
2.
Xia, Tian, et al.. (2010). Polarization and Hyperfine Transitions of Metastable ^129Xe in Discharge Cells. APS. 55(5). 2 indexed citations
3.
Xia, Tian, B. H. McGuyer, Yuan‐Yu Jau, & W. Happer. (2010). Positive nonlinear pressure shift of Cs in Ne. Bulletin of the American Physical Society. 55(5). 1 indexed citations
4.
McGuyer, B. H., A. Ben-Kish, Yuan‐Yu Jau, & W. Happer. (2010). Integrating Sphere Alkali-Metal Vapor Cells. APS. 55(5). 1 indexed citations
5.
McGuyer, B. H., Yuan‐Yu Jau, & W. Happer. (2009). New Method for Light Shift Elimination in Optical Pumping Systems. Bulletin of the American Physical Society. 40. 2 indexed citations
6.
McGuyer, B. H., Yuan‐Yu Jau, & W. Happer. (2009). Nonlinear Pressure Shifts of Rubidium in Inert Gases. Bulletin of the American Physical Society. 40. 1 indexed citations
7.
Ma, Jie, et al.. (2009). Modification of glass cell walls by rubidium vapor. Physical Review A. 79(4). 31 indexed citations
8.
Gong, Feiyan, Yuan‐Yu Jau, & W. Happer. (2008). Nonlinear Pressure Shifts of Alkali-Metal Atoms in Inert Gases. Physical Review Letters. 100(23). 233002–233002. 22 indexed citations
9.
Jau, Yuan‐Yu & W. Happer. (2007). Push-Pull Laser-Atomic Oscillator. Physical Review Letters. 99(22). 223001–223001. 14 indexed citations
10.
Patton, Brian, Kiyoshi Ishikawa, Yuan‐Yu Jau, & W. Happer. (2007). Intrinsic Impurities in Glass Alkali-Vapor Cells. Physical Review Letters. 99(2). 27601–27601. 13 indexed citations
11.
Ishikawa, Kiyoshi, Brian Patton, Yuan‐Yu Jau, & W. Happer. (2007). Spin Transfer from an Optically Pumped Alkali Vapor to a Solid. Physical Review Letters. 98(18). 183004–183004. 16 indexed citations
12.
Jau, Yuan‐Yu, et al.. (2004). Intense, Narrow Atomic-Clock Resonances. Physical Review Letters. 92(11). 110801–110801. 80 indexed citations
13.
Jau, Yuan‐Yu, et al.. (2004). Push-Pull Optical Pumping of Pure Superposition States. Physical Review Letters. 93(16). 160802–160802. 120 indexed citations
14.
Walter, D. K., et al.. (2002). Magnetic Slowing Down of Spin Relaxation due to Binary Collisions of Alkali-Metal Atoms with Buffer-Gas Atoms. Physical Review Letters. 88(9). 93004–93004. 33 indexed citations
15.
Walter, D. K., et al.. (2001). Energy Transport in High-Density Spin-Exchange Optical Pumping Cells. Physical Review Letters. 86(15). 3264–3267. 54 indexed citations
16.
Erickson, Christopher, D. Levron, W. Happer, et al.. (2000). Spin Relaxation Resonances due to the Spin-Axis Interaction in Dense Rubidium and Cesium Vapor. Physical Review Letters. 85(20). 4237–4240. 31 indexed citations
17.
Mugler, John P., Bastiaan Driehuys, James R. Brookeman, et al.. (1997). MR imaging and spectroscopy using hyperpolarized 129Xe gas: Preliminary human results. Magnetic Resonance in Medicine. 37(6). 809–815. 278 indexed citations
18.
Black, Robert D., H. Middleton, G. D. Cates, et al.. (1996). In vivo He-3 MR images of guinea pig lungs.. Radiology. 199(3). 867–870. 100 indexed citations
19.
Middleton, H., Robert D. Black, B. Saam, et al.. (1995). MR Imaging with Hyperpolarized 3He Gas. Magnetic Resonance in Medicine. 33(2). 271–275. 290 indexed citations
20.
Albert, Mitchell S., G. D. Cates, Bastiaan Driehuys, et al.. (1994). Biological magnetic resonance imaging using laser-polarized 129Xe. Nature. 370(6486). 199–201. 819 indexed citations breakdown →

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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