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2026
Spelthann, S., Koetters, L., Komban, R., Gimmler, C., & Steinke, M. (2026). Unambiguous calibration of power dependence in ratiometric luminescent nanothermometry through multiple intensity ratios and symbolic regression. Nanoscale Horizons, 11(2), 565-571. https://doi.org/10.1039/d5nh00323g
2025
Stephan, R., Scharf, E., Zolnacz, K., Urbanczyk, W., Hausmann, K., Ließmann, M., Gürtler, J., Glosemeyer, T., Czarske, J., Steinke, M., & Kuschmierz, R. (2025). Bendable Fiber Lens for Minimally Invasive Endoscopy. Laser and Photonics Reviews, 19(12), Artikel 2401757. https://doi.org/10.1002/lpor.202401757
Spelthann, S., Filipkowski, A., Adolfs, V., Ließmann, M., O'Neill, D., Savino, E., Pysz, D., Spindler, S., Noel, T., Albrecht, W., Ródenas, A., Buczynski, R., & Steinke, M. (2025). Fiber-based plasmonic microreactor for flow chemistry. In P. Peterka, K. Kalli, J. Ballato, & A. Mendez (Hrsg.), Eighth International Workshop on Specialty Optical Fibers and Their Applications, WSOF 2025 Artikel 1352222 (Proceedings of SPIE - The International Society for Optical Engineering; Band 13522). SPIE. https://doi.org/10.1117/12.3056426
2024
Zolnacz, K., Stephan, R., Dremel, J., Hausmann, K., Ließmann, M., Steinke, M., Czarske, J., & Kuschmierz, R. (2024). Lensless Multicore Fiber Endoscope with Expanded Cores for Improved Light Collection. In Frontiers in Optics + Laser Science 2024 (FiO, LS) Artikel FTh3B.7 https://doi.org/10.1364/FIO.2024.FTh3B.7
Spelthann, S., Thiem, J., Melchert, O., Komban, R., Steinke, M., Gimmler, C., Demircan, A., Ruehl, A., & Ristau, D. (2024). Numerical Optimization of the Lifetime and Quantum Yield of LiYF4:Pr3+ Nanocrystals. In M. Osinski, & A. G. Kanaras (Hrsg.), Colloidal Nanoparticles for Biomedical Applications XIX Artikel 1285905 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Band 12859). SPIE. https://doi.org/10.1117/12.3000339
Zolnacz, K., Stephan, R., Dremel, J., Hausmann, K., Ließmann, M., Steinke, M., Czarske, J., & Kuschmierz, R. (2024). Multicore fiber with thermally expanded cores for increased collection efficiency in endoscopic imaging. Light: Advanced Manufacturing, 5(4), Artikel 49. https://doi.org/10.37188/lam.2024.049
2023
Scharf, E., Stephan, R., Zolnacz, K., Steinke, M., Kuschmierz, R., & Czarske, J. (2023). Lensless Single-Shot Endoscopy with Needle-Thin Multicore Fiber Bundles enabled by 2PP 3D Printing on the Fiber Tip. Beitrag in 2023 Imaging Systems and Applications, IS 2023 in Optica Imaging Congress - Part of Imaging and Applied Optics Congress 2023, Boston, USA / Vereinigte Staaten. https://doi.org/10.1364/ISA.2023.IM3E.2
Spelthann, S., Thiem, J., Melchert, O., Komban, R., Gimmler, C., Demicran, A., Ruehl, A., & Ristau, D. (2023). Predicting the Excitation Dynamics in Lanthanide Nanoparticles. Advanced optical materials, 11(14), Artikel 2300096. https://doi.org/10.1002/adom.202300096
Stephan, R., Scharf, E., Zolnacz, K., Hausmann, K., Ließmann, M., Kötters, L., Ristau, D., Czarske, J., Kuschmierz, R., & Steinke, M. (2023). Aperiodic multi-core fibers for lens-less endoscopy. In I. Gannot, I. Gannot, & K. Roodenko (Hrsg.), Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII Artikel 1237208 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Band 12372). SPIE. https://doi.org/10.1117/12.2648872
Spelthann, S. (2023). Spectroscopy and excitation dynamics of LiYF4:Pr3+ nanocrystals. [Dissertation, Gottfried Wilhelm Leibniz Universität Hannover]. Leibniz Universität Hannover. https://doi.org/10.15488/13885
2022
Schuhbauer, B., Adolfs, V., Haxsen, F., Wienke, A., Morgner, U., Neumann, J., & Kracht, D. (2022). Generation of 15 nJ pulse energy by a sub-150 fs thulium-doped fiber Mamyshev oscillator. Optics letters, 47(21), 5610-5613. https://doi.org/10.1364/OL.470018
Komban, R., Spelthann, S., Steinke, M., Ristau, D., Rühl, A., Gimmler, C., & Weller, H. (2022). Bulk-like emission in the visible spectrum of colloidal LiYF4:Pr nanocrystals downsized to 10 nm. Nanoscale Advances, 4(14), 2973-2978. https://doi.org/10.1039/d2na00045h
2021
Stephan, R., Steinke, M., Rühl, A., Kuschmierz, R., Hausmann, K., Ließmann, M., Ristau, D., & Czarske, J. (2021). Design studies of aperiodic multicore fibres for lensless endoscopy. In E. Beaurepaire, A. Ben-Yakar, & Y. Park (Hrsg.), Advances in Microscopic Imaging III Artikel 119221J (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Band 11922). SPIE. https://doi.org/10.1117/12.2615819
Steinke, M. (2021). Full-vectorial fiber mode solver based on a discrete hankel transform. Photonics, 8(10), Artikel 439. https://doi.org/10.3390/photonics8100439
Thiem, J., Spelthann, S., Neumann, J., Ruehl, A., & Ristau, D. (2021). Three-dimensional nanothermometry below the diffraction limit. Optics letters, 46(14), 3352-3355. https://doi.org/10.1364/OL.423626
Thiem, J., Rühl, A., & Ristau, D. (2021). Influence of pumping regime on temperature resolution in nanothermometry. Nanomaterials, 11(7), Artikel 1782. https://doi.org/10.3390/nano11071782
Stephan, R., Steinke, M., Rühl, A., Kuschmierz, R., Hausmann, K., Ließmann, M., Ristau, D., & Czarske, J. (2021). Design studies of aperiodic multicore fibres for lensless endoscopy. In Conference Proceedings - 2021 European Conferences on Biomedical Optics, ECBO 2021 Artikel ETu2A.30 (Optics InfoBase Conference Papers). Optica Publishing Group (formerly OSA).
Steinke, M., Spelthann, S., Rühl, A., & Ristau, D. (2021). Absorption and multi-phonon quenching in nanocrystal doped SiO2 fibers. Optical materials express, 11(6), 1631-1642. https://doi.org/10.1364/OME.424116
Schuhbauer, B., Adolfs, V., Repgen, P., Hinkelmann, M., Wienke, A., Neumann, J., & Kracht, D. (2021). Hybrid Mode-locking in a Thulium-doped Fiber Mamyshev Osillator. In 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021 (2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9541725
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L. .-W., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Cheng, H.-P., Gniesmer, J., Hanke, M., ... Aufmuth, P. (2021). A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo. Astrophysical Journal, 909(2), Artikel 218. https://doi.org/10.3847/1538-4357/abdcb7, https://doi.org/10.15488/11452, https://doi.org/10.3847/1538-4357/ac4267
2020
Thiem, J., Spelthann, S., Neumann, L., Jakobs, F., Johannes, H. H., Kowalsky, W., Kracht, D., Neumann, J., Ruehl, A., & Ristau, D. (2020). Upconversion Nanocrystal Doped Polymer Fiber Thermometer. Sensors (Switzerland), 20(21), 1-13. Artikel 6048. https://doi.org/10.3390/s20216048
The LIGO Scientific Collaboration, Bose, S., Brown, D. D., Chen, Y. H., Cheng, H.-P., Hanke, M., Hansen, H., Hennig, J., Hübner, M. T., Lang, R. N., Lee, H. M., Lee, H. W., Lee, J., Lee, K., Li, X., Nguyen, T., Rose, C. A., Rose, D., Sanders, J. R., ... von Wrangel, J. (2020). Gravitational-wave Constraints on the Equatorial Ellipticity of Millisecond Pulsars. Astrophysical Journal Letters, 902(1), Artikel L21. https://doi.org/10.3847/2041-8213/abb655
Bose, S., Harshavardhan Reddy, P., Fan, J., Demircan, A., Ruehl, A., Morgner, U., Roy, S., Pal, M., Bhadra, S. K., & Ghosh, D. (2020). Manipulation of infrared dispersive waves in customized microstructured optical fibers for 1.7 and 2.0 µm light sources. Applied optics, 59(28), 9015-9022. https://doi.org/10.1364/AO.398966
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. H., Gniesmer, J., Hanke, M. M., Hennig, J., Hübner, M. T., ... Wei, L.-W. (2020). GW190521: A Binary Black Hole Merger with a Total Mass of 150M⊙. Physical review letters, 125(10), Artikel 101102. https://doi.org/10.1103/physrevlett.125.101102, https://doi.org/10.15488/10650
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Gniesmer, J., Hanke, M., Hennig, J., ... Koper, N. (2020). GW190412: Observation of a binary-black-hole coalescence with asymmetric masses. Physical Review D, 102(4), Artikel 043015. https://doi.org/10.1103/PhysRevD.102.043015, https://doi.org/10.15488/11392
Spelthann, S., Unland, S., Thiem, J., Jakobs, F., Kielhorn, J., Ang, P. Y., Johannes, H. H., Kracht, D., Neumann, J., Rühl, A., Kowalsky, W., & Ristau, D. (2020). Towards highly efficient polymer fiber laser sources for integrated photonic sensors. Sensors (Switzerland), 20(15), Artikel 4086. https://doi.org/10.3390/s20154086
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Cheng, H.-P., Hanke, M., Hansen, H., ... Kaufer, S. (2020). GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object. Astrophysical Journal Letters, 896(2), Artikel L44. https://doi.org/10.3847/2041-8213/ab960f, https://doi.org/10.15488/11393
The LIGO Scientific Collaboration, Virgo Collaboration, Bose, S., Brown, D. D., Chen, Y. B., Gniesmer, J., Hanke, M., Hennig, J., Hübner, M. T., Kumar, S., Lang, R. N., Lee, C. H., Lee, H. M., Lee, H. W., Lee, J., Lee, K., Li, X., Rose, C. A., Rose, D., ... Woehler, J. (2020). A Joint Fermi-GBM and LIGO/Virgo Analysis of Compact Binary Mergers from the First and Second Gravitational-wave Observing Runs. Astrophysical Journal, 893(2), Artikel 100. https://doi.org/10.3847/1538-4357/ab7d3e
Cheng, S., Chatterjee, G., Tellkamp, F., Lang, T., Ruehl, A., Hartl, I., & Miller, R. J. D. (2020). Compact Ho:YLF-pumped ZnGeP2-based optical parametric amplifiers tunable in the molecular fingerprint regime. Optics letters, 45(8), 2255-2258. https://doi.org/10.1364/OL.389535
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Aufmuth, P., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Cheng, H.-P., Gniesmer, J., ... Arunava Mukherjee, M. (2020). Optically targeted search for gravitational waves emitted by core-collapse supernovae during the first and second observing runs of advanced LIGO and advanced Virgo. Physical Review D, 101(8), Artikel 084002. https://doi.org/10.1103/PhysRevD.101.084002, https://doi.org/10.15488/12069
de Oliveira, V. S., Ruehl, A., Masłowski, P., & Hartl, I. (2020). Intensity noise optimization of a mid-infrared frequency comb difference-frequency generation source. Optics letters, 45(7), 1914-1917. https://doi.org/10.1364/OL.391195
The LIGO Scientific Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Cheng, H.-P., Gniesmer, J., Hanke, M., Hennig, J., ... Standke, M. (2020). GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M
o. Astrophysical Journal Letters, 892(1), Artikel L3. https://doi.org/10.3847/2041-8213/ab75f5, https://doi.org/10.15488/11394
The LIGO Scientific Collaboration, Virgo Collaboration, Adya, V. B., Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Hanke, M., Hennig, J., ... Thies, F. (2020). A guide to LIGO–Virgo detector noise and extraction of transient gravitational-wave signals. Classical and quantum gravity, 37(5), Artikel 055002. https://doi.org/10.1088/1361-6382/ab685e, https://doi.org/10.15488/11414
The LIGO Scientific Collaboration, Virgo Collaboration, Affeldt, C., Danilishin, S. L., Danzmann, K., Heurs, M., Lück, H., Steinmeyer, D., Vahlbruch, H., Wei, L., Wilken, D. M., Willke, B., Wittel, H., Bose, S., Brown, D. D., Chen, Y. B., Gniesmer, J., Hennig, J., Hanke, M., ... Aufmuth, P. (2020). Model comparison from LIGO–Virgo data on GW170817’s binary components and consequences for the merger remnant. Classical and quantum gravity, 37(4), Artikel 045006. https://doi.org/10.48550/arXiv.1908.01012, https://doi.org/10.1088/1361-6382/ab5f7c, https://doi.org/10.15488/11395
Bremer, K., Alwis, L. S. M., Zheng, Y., & Roth, B. W. (2020). Towards mode-multiplexed fiber sensors: An investigation on the spectral response of etched graded index OM4 multi-mode fiber with bragg grating for refractive index and temperature measurement. Applied Sciences (Switzerland), 10(1), Artikel 337. https://doi.org/10.3390/app10010337
Unland, S., Spelthann, S., Thiem, J., Jakobs, F., Kielhorn, J., Ang, P. Y., Johannes, H.-H., Kracht, D., Neumann, J., Ruehl, A., Kowalsky, W., & Ristau, D. (2020). Hocheffiziente Rhodamin B dotierte Polymer Faser Laser. In T. Fahlbusch, & F. F. Fliegner (Hrsg.), 3. Deutsches POF-Symposium im SICAN Technologiepark: Tagungsband (S. 31-42). (Berichte aus dem PhotonicNet; Band 2020, 1). TEWISS Verlag, TEWISS-Technik und Wissen GmbH.
Thiem, J., Spelthann, S., Neumann, L., Johannes, H.-H., Kowalsky, W., Kracht, D., Neumann, J., Ruehl, A., & Ristau, D. (2020). Laseraktive Nanokristalle für Polymerfasern (POF). In T. Fahlbusch, & F. F. Fliegner (Hrsg.), 3. Deutsches POF-Symposium im SICAN Technologiepark in Hannover: Tagungsband (S. 43-58). (Berichte aus dem PhotonicNet; Band 2020, 1). TEWISS Verlag, TEWISS-Technik und Wissen GmbH.
