Manfred Hammer

1.3k total citations
66 papers, 969 citations indexed

About

Manfred Hammer is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Surfaces, Coatings and Films. According to data from OpenAlex, Manfred Hammer has authored 66 papers receiving a total of 969 indexed citations (citations by other indexed papers that have themselves been cited), including 61 papers in Electrical and Electronic Engineering, 53 papers in Atomic and Molecular Physics, and Optics and 27 papers in Surfaces, Coatings and Films. Recurrent topics in Manfred Hammer's work include Photonic and Optical Devices (57 papers), Photonic Crystals and Applications (37 papers) and Optical Coatings and Gratings (27 papers). Manfred Hammer is often cited by papers focused on Photonic and Optical Devices (57 papers), Photonic Crystals and Applications (37 papers) and Optical Coatings and Gratings (27 papers). Manfred Hammer collaborates with scholars based in Netherlands, Germany and United States. Manfred Hammer's co-authors include Remco Stoffer, Jens Förstner, Reinald Gerhardt, Kirankumar R. Hiremath, O. Zhuromskyy, L. Wilkens, A. F. Popkov, N. Bahlmann, P. Hertel and H. Dötsch and has published in prestigious journals such as Optics Letters, Optics Express and Journal of Lightwave Technology.

In The Last Decade

Manfred Hammer

62 papers receiving 923 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Manfred Hammer Netherlands	15	885	705	216	124	44	66	969
I-Wei Hsieh United States	13	1.2k 1.3×	846 1.2×	41 0.2×	123 1.0×	17 0.4×	23	1.2k
N. Bahlmann Germany	11	525 0.6×	309 0.4×	29 0.1×	51 0.4×	35 0.8×	22	586
Yejin Zhang China	15	819 0.9×	455 0.6×	71 0.3×	81 0.7×	7 0.2×	86	870
Afshin Partovi United States	16	597 0.7×	599 0.8×	42 0.2×	129 1.0×	39 0.9×	29	775
N. A. Whitaker United States	12	675 0.8×	446 0.6×	38 0.2×	72 0.6×	35 0.8×	27	772
Stefano Boscolo Italy	17	701 0.8×	467 0.7×	127 0.6×	199 1.6×	15 0.3×	47	830
David Pustai United States	12	534 0.6×	522 0.7×	184 0.9×	114 0.9×	13 0.3×	23	629
J.J.G.M. van der Tol Netherlands	20	1.3k 1.5×	581 0.8×	112 0.5×	124 1.0×	4 0.1×	115	1.4k
Weiqi Xue Denmark	14	790 0.9×	772 1.1×	50 0.2×	147 1.2×	17 0.4×	47	941

Countries citing papers authored by Manfred Hammer

Since Specialization

Citations

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

Fields of papers citing papers by Manfred Hammer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Manfred Hammer

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

Hammer, Manfred, et al.. (2024). Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. Journal of the Optical Society of America B. 41(9). 2077–2077. 1 indexed citations

Someren, B. van, et al.. (2023). Weak optical modes for high-density and low-loss photonic circuits. APL Photonics. 8(5). 1 indexed citations

Hammer, Manfred, et al.. (2023). How to suppress radiative losses in high-contrast integrated Bragg gratings. Journal of the Optical Society of America B. 40(4). 862–862. 2 indexed citations

Someren, B. van, et al.. (2022). Asymmetric, non-uniform 3-dB directional coupler with 300-nm bandwidth and a small footprint. Optics Letters. 48(2). 207–207. 9 indexed citations

Hammer, Manfred, et al.. (2022). Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber. 709. 39–39. 1 indexed citations

Hammer, Manfred, et al.. (2021). Resonant evanescent excitation of guided waves with high-order optical angular momentum. Journal of the Optical Society of America B. 38(5). 1717–1717. 5 indexed citations

Hammer, Manfred, et al.. (2020). Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles. Optical and Quantum Electronics. 52(11). 5 indexed citations

Hammer, Manfred, et al.. (2018). Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity. 12. 9–15. 5 indexed citations

Hoekstra, H.J.W.M. & Manfred Hammer. (2014). General relation for group delay and the relevance of group delay for refractometric sensing. Journal of the Optical Society of America B. 31(7). 1561–1561. 3 indexed citations

10.

Hiremath, Kirankumar R., et al.. (2013). Interaction of whispering gallery modes in integrated optical microring or microdisk circuits: hybrid coupled mode theory model. Journal of the Optical Society of America B. 30(4). 1048–1048. 22 indexed citations

11.

Hammer, Manfred & M. Maksimović. (2013). Resonances in high-contrast gratings with complex unit cell topology. Data Archiving and Networked Services (DANS).

12.

Stoffer, Remco, et al.. (2010). A dimensionality reduction technique for 2D scattering problems in photonics. Journal of Optics. 12(3). 35502–35502. 3 indexed citations

13.

Hammer, Manfred, et al.. (2008). On effective index approximations of photonic crystal slabs. University of Twente Research Information. 203–206. 2 indexed citations

14.

Maksimović, M., Manfred Hammer, & E. van Groesen. (2008). Coupled optical defect microcavities in 1D photonic crystals and quasi-normal modes. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6896. 689603–689603. 5 indexed citations

15.

Suryanto, Agus, E. van Groesen, & Manfred Hammer. (2005). WEAKLY NONPARAXIAL EFFECTS ON THE PROPAGATION OF (1+1)D SPATIAL SOLITONS IN INHOMOGENEOUS KERR MEDIA. Journal of Nonlinear Optical Physics & Materials. 14(2). 203–219. 2 indexed citations

16.

Hiremath, Kirankumar R., et al.. (2005). Analytic approach to dielectric optical bent slab waveguides. Optical and Quantum Electronics. 37(1-3). 37–61. 60 indexed citations

17.

Hammer, Manfred, Didit Yudistira, & Remco Stoffer. (2004). Modeling of grating assisted standing wave, microresonators for filter applications in integrated optics. Optical and Quantum Electronics. 36(1-3). 25–42. 7 indexed citations

18.

Hiremath, Kirankumar R., Remco Stoffer, & Manfred Hammer. (2003). Coupled Mode Theory and FDTD Simulations of the Coupling Between Bent and Straight Optical Waveguides. University of Twente Research Information. 33–36. 2 indexed citations

19.

Hammer, Manfred & Didit Yudistira. (2003). Grating assisted rectangular integrated optical microresonators. University of Twente Research Information. 357–360. 1 indexed citations

20.

Hammer, Manfred. (2002). Resonant coupling of dielectric optical waveguides via rectangular microcavities: the coupled guided mode perspective. Optics Communications. 214(1-6). 155–170. 23 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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