K. Köhler

11.9k total citations · 1 hit paper
455 papers, 8.8k citations indexed

About

K. Köhler is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Condensed Matter Physics. According to data from OpenAlex, K. Köhler has authored 455 papers receiving a total of 8.8k indexed citations (citations by other indexed papers that have themselves been cited), including 312 papers in Atomic and Molecular Physics, and Optics, 303 papers in Electrical and Electronic Engineering and 108 papers in Condensed Matter Physics. Recurrent topics in K. Köhler's work include Semiconductor Quantum Structures and Devices (262 papers), Semiconductor Lasers and Optical Devices (110 papers) and GaN-based semiconductor devices and materials (97 papers). K. Köhler is often cited by papers focused on Semiconductor Quantum Structures and Devices (262 papers), Semiconductor Lasers and Optical Devices (110 papers) and GaN-based semiconductor devices and materials (97 papers). K. Köhler collaborates with scholars based in Germany, United States and United Kingdom. K. Köhler's co-authors include Karl Leo, J. Wagner, H. Kurz, A. P. Heberle, Jagdeep Shah, R. Schwedler, T. Dekorsy, Jeremy J. Baumberg, Hartmut G. Roskos and P. Ganser and has published in prestigious journals such as Physical Review Letters, The Journal of Chemical Physics and Physical review. B, Condensed matter.

In The Last Decade

K. Köhler

443 papers receiving 8.5k citations

Hit Papers

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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.

Coherent submillimeter-wave emission from Bloch oscillations in a semiconductor superlattice

1993 556 citations Hartmut G. Roskos, Karl Leo et al. Physical Review Letters profile →

Peers

Countries citing papers authored by K. Köhler

Since Specialization

Citations

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

Fields of papers citing papers by K. Köhler

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Köhler

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

#	Work	Indexed citations
1	Leakage mechanism in Al _x Ga_1−xN/GaN heterostructures with AlN interlayer 2021 ·Semiconductor Science and Technology ·K. Köhler, W. Pletschen, Lutz Kirste, Stefano Leone, S. Müller, R. Aidam, W. Bronner, Peter Brückner, Patrick Waltereit, V. M. Polyakov, O. Ambacher	2
2	Admittance–voltage profiling of AlxGa1−xN/GaN heterostructures: Frequency dependence of capacitance and conductance 2015 ·Journal of Applied Physics ·K. Köhler, W. Pletschen, (unknown), S. Müller, (unknown), O. Ambacher	4
3	GaSb-based semiconductor disk lasers: recent advances in power scaling and narrow linewidth operation 2012 ·Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·J. Wagner, Marcel Rattunde, Tino Töpper, (unknown), (unknown), C. Manz, K. Köhler	1
4	2 μm semiconductor disk laser with a heterodyne linewidth below 10 kHz 2011 ·Optics Letters ·(unknown), (unknown), Marcel Rattunde, Tino Töpper, C. Manz, K. Köhler, O. Ambacher, J. Wagner	17
5	Continuous-wave room-temperature operation of a 28 μm GaSb-based semiconductor disk laser 2011 ·Optics Letters ·(unknown), Marcel Rattunde, (unknown), (unknown), Tino Töpper, C. Manz, K. Köhler, J. Wagner	28
6	Electrical properties of AlxGa1-xN/GaN heterostructures with low Al content 2011 ·Journal of Applied Physics ·K. Köhler, S. Müller, Patrick Waltereit, W. Pletschen, V. M. Polyakov, (unknown), Lutz Kirste, (unknown), Peter Brückner, O. Ambacher, (unknown), R. Goldhahn	5
7	Quantum Cascade Detectors 2009 ·IEEE Journal of Quantum Electronics ·Fabrizio R. Giorgetta, Esther Baumann, Marcel Graf, Quankui Yang, C. Manz, K. Köhler, Harvey E. Beere, D. A. Ritchie, E. H. Linfield, A. G. Davies, Yuriy Fedoryshyn, H. Jäckel, Milan Fischer, Jérôme Faist, Daniel Hofstetter	156
8	Midinfrared quantum cascade detector with a spectrally broad response 2008 ·Journal of Applied Physics ·Daniel Hofstetter, Fabrizio R. Giorgetta, Esther Baumann, Quankui Yang, C. Manz, K. Köhler	3
9	Infrared semiconductor lasers for DIRCM applications 2008 ·Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·J. Wagner, N. Schulz, (unknown), Marcel Rattunde, Quankui Yang, F. Fuchs, C. Manz, W. Bronner, (unknown), K. Köhler, M. Raab, (unknown), (unknown)	18
10	Coherent Hall Effect in a Semiconductor Superlattice 2002 ·Physical Review Letters ·Tobias Bauer, Johanna Kolb, (unknown), Hartmut G. Roskos, (unknown), K. Köhler	16
11	Direct Measurement Of The Spatial Amplitude Of Bioch Oscillations In Semiconductor Superlattices 1997 ·Quantum Electronics and Laser Science Conference ·M. Sūdžius, V. G. Lyssenko, Gintaras Valušis, F. Löser, T. Hasche, Karl Leo, Marc M. Dignam, K. Köhler	0
12	Excitonic Thz Emission From A Narrow Miniband Superlattice 1997 ·Quantum Electronics and Laser Science Conference ·Florian Welter, P. Haring Bolívar, V. M. Axt, G. Bartels, Hartmut G. Roskos, K. Köhler, (unknown), (unknown)	0
13	Quantum Coherence of Hole Continuum States in GaAs Quantum Wells 1997 ·T. Dekorsy, (unknown), (unknown), S. Hunsche, Huib J. Bakker, H. Kurz, S. L. Chuang, K. Köhler	1
14	10 Gb/s Monolithic Optoelectronic Integrated Receiver with Clock Recovery, Data Decision, and 1:4 Demultiplexer 1995 ·European Solid-State Circuits Conference ·(unknown), V. Hurm, Manfred Lang, Manfred Berroth, M. Ludwig, Thomas Fink, K. Köhler, B. Raynor	1
15	Band-Gap Renormalization and Excitonic Effects in Tunneling in Asymmetric Double Quantum Wells 1995 ·Japanese Journal of Applied Physics ·Atsushi Tackeuchi, A. P. Heberle, W. W. Rühle, K. Köhler, Shunichi Muto	4
16	Device and process technologies for monolithic, high-speed, low-chirp semiconductor laser transmitters 1994 ·Conference on Lasers and Electro-Optics ·J.D. Ralston, S. Weisser, (unknown), E.C. Larkins, J. Rosenzweig, W. Bronner, (unknown), K. Köhler	3
17	Electro-optic detection of Bloch oscillations 1994 ·Physical review. B, Condensed matter ·T. Dekorsy, P. Leisching, K. Köhler, H. Kurz	100
18	Forecasting Economic Time-Series with Neural Networks 1993 ·K. Köhler	1
19	Coherent Oscillations of a Wavepacket in a Semiconductor Double Quantum Well Structure 1991 ·Karl Leo, Jagdeep Shah, E. O. Göbel, T. C. Damen, S. Schmitt‐Rink, Wilfried Schäfer, K. Köhler	4
20	Optical and electrical properties of the silver cluster compound (Ag6Ge4P12)Ge6 1985 ·Physical review. B, Condensed matter ·K. Köhler, H. J. Queisser, Wolfgang Hönle, H. G. VON SCHNERING, Michael Böhm	12

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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