C. Schäfer

6.4k total citations · 1 hit paper
48 papers, 1.5k citations indexed

About

C. Schäfer is a scholar working on Atomic and Molecular Physics, and Optics, Biomedical Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, C. Schäfer has authored 48 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Atomic and Molecular Physics, and Optics, 16 papers in Biomedical Engineering and 11 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in C. Schäfer's work include Strong Light-Matter Interactions (17 papers), Plasmonic and Surface Plasmon Research (12 papers) and Quantum and electron transport phenomena (9 papers). C. Schäfer is often cited by papers focused on Strong Light-Matter Interactions (17 papers), Plasmonic and Surface Plasmon Research (12 papers) and Quantum and electron transport phenomena (9 papers). C. Schäfer collaborates with scholars based in Germany, Sweden and Japan. C. Schäfer's co-authors include Ángel Rubio, Michael Ruggenthaler, Heiko Appel, Umberto De Giovannini, Hannes Hübener, Vasil Rokaj, Monika Fleischer, D. P. Kern, Denis G. Baranov and Jérôme Faist and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

C. Schäfer

45 papers receiving 1.5k 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.

Engineering quantum materials with chiral optical cavities

2020 178 citations Hannes Hübener, Umberto De Giovannini et al. Nature Materials profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
C. Schäfer Germany	22	1.1k	400	289	249	239	48	1.5k
J.-P. Martikainen Finland	24	1.5k 1.4×	808 2.0×	246 0.9×	176 0.7×	480 2.0×	55	1.9k
Valentina Krachmalnicoff France	16	767 0.7×	369 0.9×	141 0.5×	60 0.2×	224 0.9×	30	1.1k
Ana Asenjo-Garcı́a United States	22	1.4k 1.2×	561 1.4×	287 1.0×	85 0.3×	496 2.1×	44	2.1k
Tomás Sarmiento United States	18	1.0k 0.9×	577 1.4×	1.0k 3.6×	100 0.4×	167 0.7×	50	1.5k
D. A. Cardimona United States	17	1.0k 0.9×	284 0.7×	384 1.3×	54 0.2×	202 0.8×	77	1.3k
Omar Di Stefano Italy	25	1.9k 1.7×	732 1.8×	409 1.4×	267 1.1×	321 1.3×	70	2.2k
N. Kumada Japan	22	1.6k 1.5×	336 0.8×	399 1.4×	254 1.0×	80 0.3×	87	1.8k
J. Erland Denmark	12	1.2k 1.1×	459 1.1×	526 1.8×	51 0.2×	156 0.7×	35	1.4k
Danhong Huang United States	24	2.0k 1.8×	657 1.6×	898 3.1×	195 0.8×	400 1.7×	230	2.8k
A. V. Yulin Russia	25	2.0k 1.8×	248 0.6×	1.2k 4.0×	116 0.5×	102 0.4×	98	2.3k

Countries citing papers authored by C. Schäfer

Since Specialization

Citations

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

Fields of papers citing papers by C. Schäfer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. Schäfer

This figure shows the co-authorship network connecting the top 25 collaborators of C. Schäfer. A scholar is included among the top collaborators of C. Schäfer 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 C. Schäfer. C. Schäfer 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

Venkataramani, Sugumar, et al.. (2025). Unveiling the role of dark states in dynamic control of azopyrrole photoisomerization by light-matter interaction. Communications Chemistry. 8(1). 192–192.

Ruggenthaler, Michael, Hannes Hübener, C. Schäfer, et al.. (2025). Effective equilibrium theory of quantum light-matter interaction in cavities for extended systems and the long wavelength approximation. Communications Physics. 8(1).

Buhmann, Stefan Yoshi, et al.. (2024). Quantized embedding approaches for collective strong coupling—Connecting ab initio and macroscopic QED to simple models in polaritonics. The Journal of Chemical Physics. 161(15). 1 indexed citations

Xu, Nan, C. Schäfer, Eric Lindgren, et al.. (2024). Tensorial Properties via the Neuroevolution Potential Framework: Fast Simulation of Infrared and Raman Spectra. Journal of Chemical Theory and Computation. 20(8). 3273–3284. 19 indexed citations

Dobrautz, Werner, et al.. (2024). Optimizing Variational Quantum Algorithms with qBang: Efficiently Interweaving Metric and Momentum to Navigate Flat Energy Landscapes. Quantum. 8. 1313–1313. 5 indexed citations

Ronca, Enrico, et al.. (2024). Collective Strong Coupling Modifies Aggregation and Solvation. The Journal of Physical Chemistry Letters. 15(5). 1428–1434. 22 indexed citations

Schäfer, C., et al.. (2024). Machine Learning for Polaritonic Chemistry: Accessing Chemical Kinetics. Journal of the American Chemical Society. 146(8). 5402–5413. 20 indexed citations

Erhart, Paul, et al.. (2024). Controlling Plasmonic Catalysis via Strong Coupling with Electromagnetic Resonators. Nano Letters. 24(38). 11913–11920. 8 indexed citations

Schäfer, C. & Denis G. Baranov. (2023). Chiral Polaritonics: Analytical Solutions, Intuition, and Use. The Journal of Physical Chemistry Letters. 14(15). 3777–3784. 29 indexed citations

10.

Baranov, Denis G., C. Schäfer, & M. V. Gorkunov. (2023). Toward Molecular Chiral Polaritons. ACS Photonics. 10(8). 2440–2455. 37 indexed citations

11.

Shin, Dongbin, Simone Latini, C. Schäfer, et al.. (2022). Simulating Terahertz Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO3. Physical Review Letters. 129(16). 167401–167401. 21 indexed citations

12.

Schäfer, C.. (2022). Polaritonic Chemistry from First Principles via Embedding Radiation Reaction. The Journal of Physical Chemistry Letters. 13(30). 6905–6911. 31 indexed citations

13.

Sidler, Dominik, Michael Ruggenthaler, C. Schäfer, Enrico Ronca, & Ángel Rubio. (2022). A perspective on ab initio modeling of polaritonic chemistry: The role of non-equilibrium effects and quantum collectivity. The Journal of Chemical Physics. 156(23). 230901–230901. 76 indexed citations

14.

Latini, Simone, Dongbin Shin, Shunsuke Sato, et al.. (2021). The ferroelectric photo ground state of SrTiO ₃ : Cavity materials engineering. Proceedings of the National Academy of Sciences. 118(31). 77 indexed citations

15.

Schäfer, C., et al.. (2021). Making ab initio QED functional(s): Non-perturbative and photon-free effective frameworks for strong light-matter coupling. arXiv (Cornell University). 55 indexed citations

16.

Hübener, Hannes, Umberto De Giovannini, C. Schäfer, et al.. (2020). Engineering quantum materials with chiral optical cavities. Nature Materials. 20(4). 438–442. 178 indexed citations breakdown →

17.

Schäfer, C., Pradeep Perera, Deirdre L. Olynick, et al.. (2020). Selectively accessing the hotspots of optical nanoantennas by self-aligned dry laser ablation. Nanoscale. 12(37). 19170–19177. 3 indexed citations

18.

Schäfer, C., Michael Ruggenthaler, Vasil Rokaj, & Ángel Rubio. (2020). Relevance of the Quadratic Diamagnetic and Self-Polarization Terms in Cavity Quantum Electrodynamics. Communities in ADDI (University of the Basque Country). 131 indexed citations

19.

Schäfer, C., et al.. (2019). Relative spectral tuning of the vertical versus base modes in plasmonic nanocones. Nanotechnology. 30(41). 415201–415201. 9 indexed citations

20.

Schäfer, C., Michael Ruggenthaler, & Ángel Rubio. (2018). Insights from ab-initio non-relativistic quantum electrodynamics: Bridging quantum chemistry and quantum optics. Max Planck Digital Library. 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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