Stefan Alaric Schäffer

1.9k total citations · 1 hit paper
19 papers, 684 citations indexed

About

Stefan Alaric Schäffer is a scholar working on Atomic and Molecular Physics, and Optics, Statistics, Probability and Uncertainty and Electrical and Electronic Engineering. According to data from OpenAlex, Stefan Alaric Schäffer has authored 19 papers receiving a total of 684 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Atomic and Molecular Physics, and Optics, 3 papers in Statistics, Probability and Uncertainty and 2 papers in Electrical and Electronic Engineering. Recurrent topics in Stefan Alaric Schäffer's work include Advanced Frequency and Time Standards (16 papers), Atomic and Subatomic Physics Research (11 papers) and Cold Atom Physics and Bose-Einstein Condensates (11 papers). Stefan Alaric Schäffer is often cited by papers focused on Advanced Frequency and Time Standards (16 papers), Atomic and Subatomic Physics Research (11 papers) and Cold Atom Physics and Bose-Einstein Condensates (11 papers). Stefan Alaric Schäffer collaborates with scholars based in Denmark, United States and Netherlands. Stefan Alaric Schäffer's co-authors include William F. McGrew, Robert Fasano, Andrew D. Ludlow, Daniele Nicolodi, K. Beloy, Roger C. Brown, X. Zhang, N. Hinkley, Tai Hyun Yoon and Gianmaria Milani and has published in prestigious journals such as Nature, Physical Review Letters and Nature Communications.

In The Last Decade

Stefan Alaric Schäffer

17 papers receiving 640 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.

Atomic clock performance enabling geodesy below the centimetre level

2018 438 citations William F. McGrew, X. Zhang et al. Nature profile →

Peers

Countries citing papers authored by Stefan Alaric Schäffer

Since Specialization

Citations

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

Fields of papers citing papers by Stefan Alaric Schäffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stefan Alaric Schäffer. 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 Stefan Alaric Schäffer. The network helps show where Stefan Alaric Schäffer may publish in the future.

Co-authorship network of co-authors of Stefan Alaric Schäffer

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

All Works

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19 of 19 papers shown

#	Work	Indexed citations
1	Modeling of a continuous superradiant laser on the sub-mHz 1S0→3P0 transition in neutral strontium-88 2025 ·Physical Review Research ·(unknown), Georgy A. Kazakov, (unknown), (unknown), Shayne Bennetts, Stefan Alaric Schäffer, (unknown), Florian Schreck	0
2	Continuous cavity QED with an atomic beam 2024 ·Physical review. A ·(unknown), (unknown), (unknown), (unknown), Shayne Bennetts, Simon B. Jäger, Stefan Alaric Schäffer, Florian Schreck	3
3	Collectively enhanced Ramsey readout by cavity sub- to superradiant transition 2024 ·Nature Communications ·(unknown), (unknown), (unknown), Stefan Alaric Schäffer, (unknown), J. W. Thomsen, Tanya Zelevinsky, Helmut Ritsch, J. H. Müller	6
4	Prospects of a superradiant laser based on a thermal or guided beam of Sr88 2022 ·Physical review. A ·(unknown), Stefan Alaric Schäffer, J. H. Müller	5
5	Cavity-immune spectral features in the pulsed superradiant crossover regime 2021 ·Physical Review Research ·(unknown), Stefan Alaric Schäffer, (unknown), (unknown), (unknown), J. H. Müller, J. W. Thomsen	8
6	Lasing on a narrow transition in a cold thermal strontium ensemble 2020 ·Physical review. A ·Stefan Alaric Schäffer, (unknown), (unknown), (unknown), (unknown), J. W. Thomsen	38
7	Towards the optical second: verifying optical clocks at the SI limit 2019 ·Optica ·William F. McGrew, X. Zhang, Holly Leopardi, Robert Fasano, Daniele Nicolodi, K. Beloy, Jian Yao, Jeff Sherman, Stefan Alaric Schäffer, J. Savory, Roger C. Brown, Stefania Romisch, C. W. Oates, T.E. Parker, Tara M. Fortier, Andrew D. Ludlow	86
8	Optical-Clock-Based Time Scale. 2019 ·PubMed ·Jian Yao, Jeff Sherman, Tara M. Fortier, Holly Leopardi, T.E. Parker, William F. McGrew, Xiaogang Zhang, Daniele Nicolodi, Robert Fasano, Stefan Alaric Schäffer, K. Beloy, J. Savory, Stefania Romisch, C. W. Oates, Scott A. Diddams, Andrew D. Ludlow, Judah Levine	24
9	Faraday-Shielded dc Stark-Shift-Free Optical Lattice Clock 2018 ·Physical Review Letters ·K. Beloy, X. Zhang, William F. McGrew, N. Hinkley, Tai Hyun Yoon, Daniele Nicolodi, Robert Fasano, Stefan Alaric Schäffer, Roger C. Brown, Andrew D. Ludlow	15
10	Atomic clock performance enabling geodesy below the centimetre level breakdown → 2018 ·Nature ·William F. McGrew, X. Zhang, Robert Fasano, Stefan Alaric Schäffer, K. Beloy, Daniele Nicolodi, Roger C. Brown, N. Hinkley, Gianmaria Milani, M. Schioppo, Tai Hyun Yoon, Andrew D. Ludlow	438
11	Progress on optical-clock-based time scale at NIST: Simulations and preliminary real-data analysis 2018 ·NAVIGATION Journal of the Institute of Navigation ·Jian Yao, Jeffrey A. Sherman, Tara M. Fortier, Holly Leopardi, T.E. Parker, Judah Levine, J. Savory, Stefania Romisch, William F. McGrew, Xiaogang Zhang, Daniele Nicolodi, Robert Fasano, Stefan Alaric Schäffer, K. Beloy, Andrew D. Ludlow	8
12	Incorporating an Optical Clock into a Time Scale at NIST: Simulations and Preliminary Real-Data Analysis 2018 ·Research at the University of Copenhagen (University of Copenhagen) ·Jeffrey A. Sherman, Tara M. Fortier, Jian Yao, Jack Parker, Judah Levine, J. Savory, Stefania Romisch, William F. McGrew, Xiaogang Zhang, Daniele Nicolodi, Robert Fasano, Stefan Alaric Schäffer, K. Beloy, Andrew D. Ludlow	1
13	Dynamics of bad-cavity-enhanced interaction with cold Sr atoms for laser stabilization 2017 ·Physical review. A ·Stefan Alaric Schäffer, (unknown), (unknown), J. W. Thomsen	15
14	A Graphene Based Plasmonic Antenna Design for Communication in the THz Regime 2017 ·Conference on Lasers and Electro-Optics ·(unknown), Stefan Alaric Schäffer, Sergi Abadal, Eduard Alarcón, (unknown), (unknown), (unknown), Stefan Wagner, Albert Cabellos‐Aparicio, Max C. Lemme, P. Haring Bolívar	3
15	Towards passive and active laser stabilization using cavity-enhanced atomic interaction 2017 ·Journal of Physics Conference Series ·Stefan Alaric Schäffer, Bjarke Bak Christensen, (unknown), Martin Hayhurst Appel, (unknown), J. W. Thomsen	5
16	Laser stabilization on velocity dependent nonlinear dispersion of Sr atoms in an optical cavity 2015 ·(unknown), Stefan Alaric Schäffer, (unknown), Philip G. Westergaard, Jun Ye, J. W. Thomsen	1
17	Large waist cavity for ultra-narrow transition spectroscopy 2015 ·Research at the University of Copenhagen (University of Copenhagen) ·Stefan Alaric Schäffer, (unknown), (unknown), J. W. Thomsen	1
18	Nonlinear spectroscopy of Sr atoms in an optical cavity for laser stabilization 2015 ·Physical Review A ·(unknown), (unknown), Stefan Alaric Schäffer, Philip G. Westergaard, (unknown), Jun Ye, Murray Holland, J. W. Thomsen	23
19	Status of high current ion source operation at the GSI accelerator facility 2008 ·Review of Scientific Instruments ·R. Hollinger, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Paul Schaffer, Stefan Alaric Schäffer, P. Spädtke, (unknown), (unknown), (unknown)	4

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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