Ralf Hellmann

About

Ralf Hellmann is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Bioengineering. According to data from OpenAlex, Ralf Hellmann has authored 33 papers receiving a total of 314 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Electrical and Electronic Engineering, 14 papers in Atomic and Molecular Physics, and Optics and 5 papers in Bioengineering. Recurrent topics in Ralf Hellmann’s work include Photonic and Optical Devices (30 papers), Fiber Optic Sensor Technology (29 papers) and Mechanical and Optical Resonators (9 papers). Ralf Hellmann is often cited by papers focused on Photonic and Optical Devices (30 papers), Fiber Optic Sensor Technology (29 papers) and Mechanical and Optical Resonators (9 papers). Ralf Hellmann collaborates with scholars based in Germany, Norway and Switzerland. Ralf Hellmann's co-authors include M. Rosenberger, Bernhard Schmauß, Siegfried R. Waldvogel, Malte Brutschy, Georg Koller, Mathias Rommel, L. Frey, Benedikt Adelmann, Heinz Woern and Sunae So and has published in prestigious journals such as Optics Letters, Optics Express and Analytica Chimica Acta.

In The Last Decade

Co-authorship network of co-authors of Ralf Hellmann i

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Fields of papers citing papers by Ralf Hellmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ralf Hellmann

Since Specialization

Citations

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

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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