Alexander Klein

463 total citations
15 papers, 372 citations indexed

About

Alexander Klein is a scholar working on Spectroscopy, Atmospheric Science and Electrical and Electronic Engineering. According to data from OpenAlex, Alexander Klein has authored 15 papers receiving a total of 372 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Spectroscopy, 9 papers in Atmospheric Science and 7 papers in Electrical and Electronic Engineering. Recurrent topics in Alexander Klein's work include Spectroscopy and Laser Applications (10 papers), Atmospheric Ozone and Climate (8 papers) and Atmospheric and Environmental Gas Dynamics (5 papers). Alexander Klein is often cited by papers focused on Spectroscopy and Laser Applications (10 papers), Atmospheric Ozone and Climate (8 papers) and Atmospheric and Environmental Gas Dynamics (5 papers). Alexander Klein collaborates with scholars based in Germany, Netherlands and Belgium. Alexander Klein's co-authors include Volker Ebert, Oliver Witzel, Christof Schulz, Steven Wagner, Sebastian A. Kaiser, Andrea Pogány, Armin Afchine, C. Schiller, Martina Krämer and Bernhard Buchholz and has published in prestigious journals such as Optics Express, Sensors and Proceedings of the Combustion Institute.

In The Last Decade

Alexander Klein

15 papers receiving 343 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Alexander Klein Germany	9	316	207	157	136	38	15	372
Yanjun Du China	15	294 0.9×	184 0.9×	105 0.7×	226 1.7×	43 1.1×	48	590
Johannes P. Waclawek Austria	10	325 1.0×	118 0.6×	89 0.6×	220 1.6×	108 2.8×	21	419
Oliver Witzel Germany	5	253 0.8×	156 0.8×	107 0.7×	96 0.7×	34 0.9×	6	274
R. Strzoda Germany	15	369 1.2×	159 0.8×	139 0.9×	305 2.2×	55 1.4×	39	519
Lawrence C. Hughes United States	10	272 0.9×	167 0.8×	92 0.6×	251 1.8×	35 0.9×	22	376
Andreas Hangauer Germany	14	389 1.2×	155 0.7×	106 0.7×	330 2.4×	31 0.8×	48	500
Wen Yu Peng United States	12	238 0.8×	144 0.7×	76 0.5×	108 0.8×	29 0.8×	18	348
Andrea Pogány Germany	10	324 1.0×	200 1.0×	176 1.1×	136 1.0×	108 2.8×	21	428
R. Mihalcea United States	8	378 1.2×	150 0.7×	122 0.8×	239 1.8×	52 1.4×	19	433
Ningwu Liu China	12	423 1.3×	178 0.9×	137 0.9×	243 1.8×	143 3.8×	27	506

Countries citing papers authored by Alexander Klein

Since Specialization

Citations

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

Fields of papers citing papers by Alexander Klein

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alexander Klein

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

All Works

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15 of 15 papers shown

Kerkhof, Mark van de, Alexander Klein, Emily Gallagher, et al.. (2023). EUV pellicle scanner integration for N2 nodes and beyond. 21–21. 9 indexed citations

Kerkhof, Mark van de, et al.. (2022). High-transmission EUV pellicles supporting >400W source power. 26–26. 8 indexed citations

Bekaert, Joost, Emily Gallagher, R. Jonckheere, et al.. (2021). Carbon nanotube pellicles: imaging results of the first full-field extreme ultraviolet exposures. Journal of Micro/Nanopatterning Materials and Metrology. 20(2). 3 indexed citations

Bekaert, Joost, Emily Gallagher, R. Jonckheere, et al.. (2021). CNT pellicles: Imaging results of the first full-field EUV exposures. 35–35. 8 indexed citations

Buchholz, Bernhard, Armin Afchine, Alexander Klein, et al.. (2017). HAI, a new airborne, absolute, twin dual-channel, multi-phase TDLAS-hygrometer: background, design, setup, and first flight data. Atmospheric measurement techniques. 10(1). 35–57. 22 indexed citations

Buchholz, Bernhard, Armin Afchine, Alexander Klein, et al.. (2016). HAI – A new, airborne, absolute, twin dual-channel, multi-phase TDLAS-hygrometer. 1 indexed citations

Lüttschwager, Nils O. B., Andrea Pogány, Javis A. Nwaboh, et al.. (2015). Traceable amount of substance fraction measurements in gases through infrared spectroscopy at PTB. 24. 7005–7005. 1 indexed citations

Pogány, Andrea, Alexander Klein, & Volker Ebert. (2015). Measurement of water vapor line strengths in the 1.4–2.7 µm range by tunable diode laser absorption spectroscopy. Journal of Quantitative Spectroscopy and Radiative Transfer. 165. 108–122. 53 indexed citations

Klein, Alexander & Volker Ebert. (2014). Dual fiber-coupled laser hygrometer for fast in-situ gas analysis with minimized absorption path length. Common Library Network (Der Gemeinsame Bibliotheksverbund). 2 indexed citations

10.

Klein, Alexander, Oliver Witzel, & Volker Ebert. (2014). Rapid, Time-Division Multiplexed, Direct Absorption- and Wavelength Modulation-Spectroscopy. Sensors. 14(11). 21497–21513. 70 indexed citations

11.

Witzel, Oliver, et al.. (2014). Calibration-free, high-speed, in-cylinder laser absorption sensor for cycle-resolved, absolute H2O measurements in a production IC engine. Proceedings of the Combustion Institute. 35(3). 3653–3661. 23 indexed citations

12.

Buchholz, Bernhard, Armin Afchine, Alexander Klein, et al.. (2013). Simultaneous gas-phase and total water detection for airborne applications with a multi-channel TDL spectrometer at 1.4 µm and 2.6 µm. JuSER (Forschungszentrum Jülich). 15. 1 indexed citations

13.

Witzel, Oliver, Alexander Klein, Steven Wagner, et al.. (2013). VCSEL-based, high-speed, in situ TDLAS for in-cylinder water vapor measurements in IC engines. Optics Express. 21(17). 19951–19951. 113 indexed citations

14.

Witzel, Oliver, et al.. (2012). High-speed tunable diode laser absorption spectroscopy for sampling-free in-cylinder water vapor concentration measurements in an optical IC engine. Applied Physics B. 109(3). 521–532. 55 indexed citations

15.

Franz, H. B., K. P. Günther, Alexander Klein, et al.. (1982). Airborne fluorescence LIDAR monitoring of tracer dye patches—a comparison with shipboard measurements. Deep Sea Research Part A Oceanographic Research Papers. 29(7). 893–901. 3 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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