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Institute of Photonic Technologies

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Hohmann, Martin

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Hohmann, Martin

Dr.-Ing. Martin Hohmann

Institute of Photonic Technologies (LPT, Prof. Schmidt)

Room: Room 02.042
Konrad-Zuse-Straße 3/5
91052 Erlangen
  • Phone number: +49 9131 85-23242
  • Fax number: +49 9131 85-23234
  • Email: martin.hohmann@lpt.uni-erlangen.de

 

Research focuses:
  • Image processing and machine learning for the detection of diseases  of hyper spectral images from the gastrointestinal tract
  • Hyperspectral imaging for the reconstruction of tomographic information
  • Monte-Carlo-Simulation for the generation of hyperspectral images and simulation of inter patient variations
  • Random laser for the characterization of turbid media
  • Precise measurement of optical properties with focus on the scattering coefficient and the g-factor
  • Investigation of the cause of Femoroacetabular impingement (FAI) with the help of LIBS, Raman spectroscopy and diffuse reflectance spectroscopy
Positions and tasks:
  • Scientific assistant in the Medical Photonics group

 

Publications:

  • Kupriyanov V., Blondel W., Daul C., Hohmann M., Khairallah G., Kistenev Y., Amouroux M.:
    Machine learning-based classification of spatially resolved diffuse reflectance and autofluorescence spectra acquired on human skin for actinic keratoses and skin carcinoma diagnostics aid
    In: Journal of Biomedical Optics 30 (2025), p. 035001-
    ISSN: 1083-3668
    DOI: 10.1117/1.JBO.30.3.035001
    BibTeX: Download
  • Ni D., Amouroux M., Blondel W., Hohmann M.:
    Automated spectral decomposition and reconstruction of optical properties using a mixed autoencoder approach
    In: Journal of Biomedical Optics 30 (2025), p. 047001-
    ISSN: 1083-3668
    DOI: 10.1117/1.JBO.30.4.047001
    BibTeX: Download
  • Ni D., Hohmann M.:
    Empirical model of the total transmission of light in turbid media
    In: Journal of the Optical Society of America A-Optics Image Science and Vision 42 (2025), p. 193-200
    ISSN: 1084-7529
    DOI: 10.1364/JOSAA.533888
    BibTeX: Download
  • Soler-Carracedo K., Ruiz A., Ríos S., de Armas-Rillo S., Martín LL., Hohmann M., Martín IR., Lahoz F.:
    Stretching the Limits of Refractometric Sensing in Water Using Whispering-Gallery-Mode Resonators
    In: Chemosensors 13 (2025), Article No.: 33
    ISSN: 2227-9040
    DOI: 10.3390/chemosensors13020033
    BibTeX: Download

  • Ghosh A., Hohmann M., Klämpfl F., Schmidt M.:
    Depth estimation in turbid media from stack of epi-illuminated microscopy images, using deep learning
    Tissue Optics and Photonics III 2024 (Strasbourg, FRA, April 9, 2024 - April 11, 2024)
    In: Valery V. Tuchin, Walter C. Blondel, Zeev Zalevsky (ed.): Proceedings of SPIE - The International Society for Optical Engineering 2024
    DOI: 10.1117/12.3029573
    BibTeX: Download
  • Hohmann M., Kühn D., Ni D., Späth M., Ghosh A., Rohde M., Stelzle F., Klämpfl F., Schmidt M.:
    Relevant parameters for laser surgery of soft tissue
    In: Scientific Reports 14 (2024), Article No.: 1263
    ISSN: 2045-2322
    DOI: 10.1038/s41598-024-51449-1
    BibTeX: Download
  • Ni D., Karmann N., Hohmann M.:
    Automatic reconstruction and separation of each constituent's absorption and scattering properties using a customized autoencoder neural network
    SPIE Photonics Europe (Strasbourg, April 9, 2024 - April 11, 2024)
    In: Valery V. Tuchin, Walter C. Blondel, Zeev Zalevsky (ed.): Tissue Optics and Photonics III 2024
    DOI: 10.1117/12.3021547
    BibTeX: Download
  • Ni D., Karmann N., Hohmann M.:
    Reconstruction of Optical Properties in Turbid Media: Omitting the Need of the Collimated Transmission for an Integrating Sphere Setup
    In: Sensors 24 (2024), Article No.: 4807
    ISSN: 1424-8220
    DOI: 10.3390/s24154807
    BibTeX: Download
  • Ni D., Klämpfl F., Schmidt M., Hohmann M.:
    Towards a sensing model using a random laser combined with diffuse reflectance spectroscopy
    In: Biomedical Optics Express 15 (2024), p. 4425-4437
    ISSN: 2156-7085
    DOI: 10.1364/BOE.525693
    BibTeX: Download

  • Ni D., Späth M., Klämpfl F., Hohmann M.:
    Properties and Applications of Random Lasers as Emerging Light Sources and Optical Sensors: A Review
    In: Sensors 23 (2023), Article No.: 247
    ISSN: 1424-8220
    DOI: 10.3390/s23010247
    BibTeX: Download
  • Ni D., Späth M., Klämpfl F., Schmidt M., Hohmann M.:
    Random laser-assisted whispering gallery mode laser for precise determination of microstructures
    Frontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023 (Tacoma, WA, October 9, 2023 - October 12, 2023)
    In: Frontiers in Optics: Proceedings Frontiers in Optics + Laser Science 2023, FiO, LS 2023 2023
    DOI: 10.1364/FIO.2023.JM7A.82
    BibTeX: Download
  • Ni D., Späth M., Klämpfl F., Schmidt M., Hohmann M.:
    Threshold behavior and tunability of a diffusive random laser
    In: Optics Express 31 (2023), p. 25747-52762
    ISSN: 1094-4087
    DOI: 10.1364/OE.491475
    BibTeX: Download
  • Späth M., Rohde M., Ni D., Knieling F., Stelzle F., Schmidt M., Klämpfl F., Hohmann M.:
    Author Correction: The influence of the optical properties on the determination of capillary diameters (Scientific Reports, (2022), 12, 1, (270), 10.1038/s41598-021-04359-5)
    In: Scientific Reports 13 (2023), Article No.: 2723
    ISSN: 2045-2322
    DOI: 10.1038/s41598-022-26996-0
    BibTeX: Download

  • Goebel CA., Brown E., Fahlbusch F., Wagner A., Buehler A., Raupach T., Hohmann M., Späth M., Burton N., Wölfle J., Schmidt M., Hartner A., Regensburger A., Knieling F.:
    High-resolution label-free mapping of murine kidney vasculature by raster-scanning optoacoustic mesoscopy: an ex vivo study
    In: Molecular and Cellular Pediatrics 9 (2022), Article No.: 13
    ISSN: 2194-7791
    DOI: 10.1186/s40348-022-00144-0
    BibTeX: Download
  • Hohmann M., Ganzleben I., Grünberg A., Menezes JG., Klämpfl F., Lengenfelder B., Liebing E., Heichler C., Neufert C., Becker C., Neurath M., Waldner M., Schmidt M.:
    In vivo multi spectral colonoscopy in mice
    In: Scientific Reports 12 (2022)
    ISSN: 2045-2322
    DOI: 10.1038/s41598-022-12794-1
    BibTeX: Download
  • Hohmann M., Kühn D., Späth M., Rohde M., Stelzle F., Klämpfl F., Schmidt M.:
    Development and evaluation of a scoring system for assessing incisions in laser surgery
    In: Scientific Reports 12 (2022), p. 14741-
    ISSN: 2045-2322
    DOI: 10.1038/s41598-022-18969-0
    BibTeX: Download
  • Späth M., Rohde M., Ni D., Knieling F., Stelzle F., Schmidt M., Klämpfl F., Hohmann M.:
    The influence of the optical properties on the determination of capillary diameters
    In: Scientific Reports 12 (2022), Article No.: 270
    ISSN: 2045-2322
    DOI: 10.1038/s41598-021-04359-5
    BibTeX: Download
  • Späth M., Romboy A., Nzenwata I., Rohde M., Ni D., Ackermann L., Stelzle F., Hohmann M., Klämpfl F.:
    Experimental Validation of Shifted Position-Diffuse Reflectance Imaging (SP-DRI) on Optical Phantoms
    In: Sensors 22 (2022), p. 9880
    ISSN: 1424-8220
    DOI: 10.3390/s22249880
    BibTeX: Download

  • Hohmann M., Hecht D., Lengenfelder B., Späth M., Klämpfl F., Schmidt M.:
    Proof of principle for direct reconstruction of qualitative depth information from turbid media by a single hyper spectral image
    In: Sensors 21 (2021), Article No.: 2860
    ISSN: 1424-8220
    DOI: 10.3390/s21082860
    BibTeX: Download
  • Hohmann M., Karabayir A., Herzler P., Späth M., Klämpfl F., Schmidt M.:
    Analysis of diffuse reflectance spectroscopy by means of Bayesian inference and separation of the parameters for scattering strength and spectral dependence of the scattering
    In: Journal of Biophotonics (2021)
    ISSN: 1864-063X
    DOI: 10.1002/jbio.202100205
    BibTeX: Download
  • Hohmann M., Lengenfelder B., Muhr D., Späth M., Hauptkorn M., Klämpfl F., Schmidt M.:
    Direct measurement of the scattering coefficient
    In: Biomedical Optics Express 12 (2021), p. 320-335
    ISSN: 2156-7085
    DOI: 10.1364/BOE.410248
    BibTeX: Download
  • Hohmann M., Späth M., Ni D., Dörner D., Lengenfelder B., Klämpfl F., Schmidt M.:
    Random laser as a potential tool for the determination of the scattering coefficient
    In: Biomedical Optics Express 12 (2021), p. 5439
    ISSN: 2156-7085
    DOI: 10.1364/BOE.432052
    BibTeX: Download
  • Lengenfelder B., Hohmann M., Späth M., Scherbaum D., Weiß M., Rupitsch S., Schmidt M., Zalevsky Z., Klämpfl F.:
    Remote Photoacoustic Sensing Using Single Speckle Analysis by an Ultra-Fast Four Quadrant Photo-Detector
    In: Sensors 21 (2021)
    ISSN: 1424-8220
    DOI: 10.3390/s21062109
    BibTeX: Download
  • Späth M., Hohmann M., Rohde M., Klämpfl F.:
    Numerical Aperture for Photon Detection within Shifted Position-Diffuse Reflectance Imaging
    Frontiers in Optics (Washington, November 1, 2021 - November 4, 2021)
    In: OSA Technical Digest (Optical Society of America, 2021) 2021
    DOI: 10.1364/FIO.2021.JTu1A.114
    BibTeX: Download
  • Späth M., Hohmann M., Rohde M., Lengenfelder B., Stelzle F., Klämpfl F.:
    Determination of the diameter of simulated human capillaries using shifted position‐diffuse reflectance imaging
    In: Journal of Biophotonics (2021)
    ISSN: 1864-063X
    DOI: 10.1002/jbio.202000465
    BibTeX: Download
  • Späth M., Hohmann M., Stelzle F., Klämpfl F.:
    Lateral resolution and imaging depth of shifted position-diffuse reflectance imaging
    European Conference on Biomedical Optics 2021 (Munich, June 20, 2021 - June 24, 2021)
    In: OSA Technical Digest (Optical Society of America, 2021) 2021
    DOI: 10.1117/12.2615426
    BibTeX: Download

  • Ganzleben I., Hohmann M., Grünberg A., Menezes JG., Liebing E., Günther C., Thonn V., Beß D., Becker C., Schmidt M., Neurath M., Waldner M., Vieth M.:
    Topical application of Chlorin e6-PVP (Ce6-PVP) for improved endoscopic detection of neoplastic lesions in a murine colitis-associated cancer model
    In: Scientific Reports 10 (2020), Article No.: 13129
    ISSN: 2045-2322
    DOI: 10.1038/s41598-020-69570-2
    BibTeX: Download
  • Hohmann M., Albrecht H., Lengenfelder B., Klämpfl F., Schmidt M.:
    Factors influencing the accuracy for tissue classification in multi spectral in-vivo endoscopy for the upper gastro-internal tract
    In: Scientific Reports 10 (2020), Article No.: 3546
    ISSN: 2045-2322
    DOI: 10.1038/s41598-020-60389-5
    BibTeX: Download
  • Lengenfelder B., Hohmann M., Röhm M., Schmidt M., Zam A., Zalevsky Z., Klämpfl F.:
    Image reconstruction for remote photoacoustic tomography using speckle-analysis
    SPIE Photonics Europe (Online only, April 6, 2020 - April 10, 2020)
    In: SPIE (ed.): Proceedings Volume 11363, Tissue Optics and Photonics; 113631F (2020) 2020
    DOI: 10.1117/12.2553080
    BibTeX: Download
  • Lengenfelder B., Jarkas H., Shabairou N., Hohmann M., Schmidt M., Zalevsky Z., Klämpfl F.:
    Remote photoacoustic tomography using diode-array and speckle-analysis
    SPIE Photonics Europe (Online only, April 6, 2020 - April 10, 2020)
    In: SPIE (ed.): Proceedings Volume 11363, Tissue Optics and Photonics; 1136308 (2020) 2020
    DOI: 10.1117/12.2542423
    BibTeX: Download
  • Shabairou N., Lengenfelder B., Hohmann M., Klämpfl F., Schmidt M., Zalevsky Z.:
    All-optical, an ultra-thin endoscopic photoacoustic sensor using multi-mode fiber
    In: Scientific Reports (2020), Article No.: 9142
    ISSN: 2045-2322
    DOI: 10.1038/s41598-020-66076-9
    BibTeX: Download
  • Späth M., Hohmann M., Roider C., Lengenfelder B., Stelzle F., Wirtz S., Klämpfl F.:
    Towards shifted position-diffuse reflectance imaging of anatomically correctly scaled human microvasculature
    In: Scientific Reports 10 (2020), Article No.: 17391
    ISSN: 2045-2322
    DOI: 10.1038/s41598-020-74447-5
    BibTeX: Download

  • Hohmann M., Albrecht H., Mudter J., Nagulin KY., Klämpfl F., Schmidt M.:
    Spectral Spatial Variation
    In: Scientific Reports 9 (2019), Article No.: 7512
    ISSN: 2045-2322
    DOI: 10.1038/s41598-019-43971-4
    BibTeX: Download
  • Hohmann M., Dörner D., Mehari F., Chen C., Späth M., Müller S., Albrecht H., Klämpfl F., Schmidt M.:
    Investigation of random lasing as a feedback mechanism for tissue differentiation during laser surgery
    In: Biomedical Optics Express 10 (2019), p. 807-816
    ISSN: 2156-7085
    DOI: 10.1364/BOE.10.000807
    BibTeX: Download
  • Hohmann M., Hecht D., Lengenfelder B., Klämpfl F., Schmidt M.:
    Direct reconstruction of qualitative depth information from turbid media by a single hyper spectral image
    Photonics West 2019: BIOS (San Francisco, February 2, 2019 - February 7, 2019)
    In: Proc. SPIE 10885, Optical Diagnostics and Sensing XIX: Toward Point-of-Care Diagnostics 2019
    DOI: 10.1117/12.2509314
    BibTeX: Download
  • Kreiß L., Hohmann M., Klämpfl F., Schürmann S., Dehghani F., Schmidt M., Friedrich O., Büchler L.:
    Diffuse reflectance spectroscopy and Raman spectroscopy for label-free molecular characterization and automated detection of human cartilage and subchondral bone
    In: Sensors and Actuators B-Chemical 301 (2019), Article No.: 127121
    ISSN: 0925-4005
    DOI: 10.1016/j.snb.2019.127121
    BibTeX: Download
  • Lengenfelder B., Funk S., Hohmann M., Späth M., Klämpfl F., Stelzle F., Zalevsky Z., Schmidt M.:
    Remote speckle-sensing for improved differentiation between different types of tissues
    European Conferences on Biomedical Optics, 2019 (Munich, Germany, June 23, 2019 - June 27, 2019)
    In: SPIE (ed.): Opto-Acoustic Methods and Applications in Biophotonics IV; 110771Q (2019) 2019
    DOI: 10.1117/12.2526589
    BibTeX: Download
  • Lengenfelder B., Hohmann M., Klämpfl F., Waldner M., Zalevsky Z., Schmidt M.:
    Ex-vivo, remote photoacoustic sensing using speckle-analysis
    International Conference on Advanced Optical Technologies (Erlangen, March 13, 2019 - March 15, 2019)
    DOI: 10.1038/s41598-018-38446-x
    URL: https://www.saot.fau.de/events_saot/archive/international-conference/scientific-program/#collapse_3
    BibTeX: Download
  • Lengenfelder B., Hohmann M., Klämpfl F., Zam A., Weiß M., Rupitsch S., Zalevsky Z., Schmidt M.:
    Model for the description of remote photoacoustic sensing using speckle-analysis
    European Conferences on Biomedical Optics (Munich, June 23, 2019 - June 27, 2019)
    In: SPIE (ed.): Opto-Acoustic Methods and Applications in Biophotonics IV; 110771I (2019) 2019
    DOI: 10.1117/12.2526593
    BibTeX: Download
  • Lengenfelder B., Mehari F., Hohmann M., Heinlein M., Chelales E., Waldner M., Klämpfl F., Zalevsky Z., Schmidt M.:
    Remote photoacoustic sensing using speckle-analysis
    In: Scientific Reports (2019)
    ISSN: 2045-2322
    DOI: 10.1038/s41598-018-38446-x
    URL: https://www.nature.com/articles/s41598-018-38446-x
    BibTeX: Download
  • Lengenfelder B., Mehari F., Hohmann M., Löhr C., Waldner M., Schmidt M., Zalevsky Z., Klämpfl F.:
    Contact-free endoscopic photoacoustic sensing using speckle-analysis
    In: Journal of Biophotonics (2019)
    ISSN: 1864-063X
    DOI: 10.1002/jbio.201900130
    BibTeX: Download
  • Späth M., Klämpfl F., Stelzle F., Hohmann M., Lengenfelder B., Schmidt M.:
    A quantitative evaluation of the use of medical lasers in German hospitals
    In: Journal of Biophotonics (2019)
    ISSN: 1864-063X
    DOI: 10.1002/jbio.201900238
    BibTeX: Download

  • Hohmann M., Kanawade R., Klämpfl F., Douplik A., Mudter J., Neurath M., Albrecht H.:
    In-vivo multispectral video endoscopy towards in-vivo hyperspectral video endoscopy
    In: Journal of Biophotonics 10 (2017), p. 553-564
    ISSN: 1864-063X
    DOI: 10.1002/jbio.201600021
    BibTeX: Download
  • Hohmann M., Lengenfelder B., Kanawade R., Klämpfl F., Douplik A., Albrecht H.:
    Measurement of optical properties of pig esophagus by using a modified spectrometer set-up
    In: Journal of Biophotonics (2017)
    ISSN: 1864-063X
    BibTeX: Download

  • Hohmann M., Kanawade R., Klämpfl F., Douplik A., Mudter J., Neurath M., Albrecht H.:
    In-vivo multispectral Video Endoscopy towards in-vivo hyperspectral Video Endoscopy
    In: Journal of Biophotonics (2016)
    ISSN: 1864-063X
    BibTeX: Download

  • Hohmann M., Lengenfelder B., Kanawade R., Klämpfl F., Schmidt M.:
    Extension of depth-resolved reconstruction of attenuation coefficients in optical coherence tomography for slim samples
    Biophotonics Japan 2015 (Tokyo, Japan, October 26, 2015 - October 30, 2015)
    In: SPIE (ed.): Optical Coherence Tomography 2 2015
    DOI: 10.1117/12.2205030
    URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2475806
    BibTeX: Download
  • Kanawade R., Lengenfelder B., Menezes TM., Hohmann M., Kopfinger S., Hohmann T., Grabiec U., Klämpfl F., Menezes JG., Waldner M., Schmidt M.:
    Improved cancer diagnostics by different image processing techniques on OCT images
    In: Proceedings of SPIE (2015)
    ISSN: 0277-786X
    DOI: 10.1117/12.2183838
    BibTeX: Download

  • Hohmann M., Devrient M., Klämpfl F., Roth S., Schmidt M.:
    Simulation of Light Propagation within Glass Fiber Filled Thermoplastics for Laser Transmission Welding
    BibTeX: Download

  • Shahmoon A., Aharon S., Kruchik O., Hohmann M., Slovin H., Douplik A., Zalevsky Z.:
    In vivo minimally invasive interstitial multi-functional microendoscopy
    In: Scientific Reports (2013)
    ISSN: 2045-2322
    BibTeX: Download

  • Hohmann M., Douplik A., Varadhachari J., Nasution A., Mudter J., Neurath M., Schmidt M.:
    Preliminary results for hyperspectral videoendoscopy diagnostics on the phantoms of normal and abnormal tissues: towards gastrointestinal diagnostics
    mudter jonas
    BibTeX: Download
  • Schmidt M., Zimmermann M., Hohmann M., Paulus J.:
    Photonics in medicine -From diagnostics to training
    BibTeX: Download
Institute of Photonic Technologies
Friedrich-Alexander-University Erlangen-Nürnberg

Konrad-Zuse-Straße 3/5
91052 Erlangen
Germany
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