Horn, Alexander

Prof. Dr. rer. nat. habil.

Positionen

Professor, Fachgruppe Physik und Lasertechnik, Fachgebiet Lasertechnik, Fakultät Ingenieurwissenschaften

Übersicht zur Forschung

- Ultrakurzpulslasermesstechnik
- Ultrakurzpulslasermaterialbearbeitung organischer Dünnschichtsysteme
- Prozessdiagnose und Modellierung ultraschneller laserinduzierten Prozesse
- laserinduzierte selektive Prozesse für die organische Elektronik und Life-Sciences
- nichtlineare und kohärente Prozesse bei der Lasermikro- und -nanobearbeitung

Forschungsschwerpunkt

Lasertechnologien Forschungsschwerpunkt

Projektleitung für

Leitung von

ausgewählte Veröffentlichungen

Journalartikel
- Transient ablation topography of a thin chromium film after ultrashort pulsed laser irradiation in the spallation and phase explosion regime. Optics & Laser Technology. 110540. 2024
- Ultrafast spallation dynamics of a thin gold film characterized by imaging pump-probe interferometry. Applied Physics A. 632. 2024
- Experimental study on the ablation of stainless steel using multiple ultra-short laser pulses with tunable time delays. Applied Physics A. 674. 2023
- Laser‐Induced Positional and Chemical Lattice Reordering Generating Ferromagnetism. Advanced Functional Materials. 2023
- Electron dynamics in fused silica after strong field laser excitation detected by spectroscopic imaging pump-probe ellipsometry. Physical Review B. 014307. 2022
- Transmission windows of charge transport layers and electrodes in highly transparent organic solar cells for agrivoltaic application. AIP Conference Proceedings. 2022
- Fluence-Dependent Transient Reflectance of Stainless Steel Investigated by Ultrafast Imaging Pump–Probe Reflectometry. The Journal of Physical Chemistry C. 17363-17371. 2021
- Improved Hole Extraction Selectivity of Polymer Solar Cells by Combining PEDOT:PSS with WO3. Energy Technology. 2100474. 2021
- Local Optical Properties in CVD-Grown Monolayer WS2 Flakes. The Journal of Physical Chemistry C. 16059-16065. 2021
- Study on X-ray Emission Using Ultrashort Pulsed Lasers in Materials Processing. Materials. 4537. 2021
- Topological transition from deeply sub- to near-wavelength ripples during multi-shot mid-IR femtosecond laser exposure of a silicon surface. Optical Materials Express. 1-11. 2021
- X-ray generation by laser ablation using MHz to GHz pulse bursts. Journal of Laser Applications. 032014. 2021
- Experimental and Theoretical Determination of the Effective Penetration Depth of Ultrafast Laser Radiation in Stainless Steel. Lasers in Manufacturing and Materials Processing. 478-495. 2020
- Hydrodynamic modeling and time-resolved imaging reflectometry of the ultrafast laser-induced ablation of a thin gold film. Optics and Lasers in Engineering. 106067. 2020
- Exchange bias and diffusion processes in laser annealed CoFeB/IrMn thin films. Journal of Magnetism and Magnetic Materials. 165390. 2019
- Femtosecond-time-resolved imaging of the dielectric function of ZnO in the visible to near-IR spectral range. Applied Physics Letters. 212103. 2019
- Surface Modifications of Poly(methyl methacrylate) Induced by Controlled Electronic and Molecular Vibrational Excitation Applying Ultrafast Mid-IR Laser Radiation. The Journal of Physical Chemistry C. 20210-20220. 2019
- Case study on the dynamics of ultrafast laser heating and ablation of gold thin films by ultrafast pump-probe reflectometry and ellipsometry. Applied Physics A. 116. 2018
- Investigations on the modification of PMMA by ultrafast laser radiation from the UV to the mid-IR spectral range. Optics and Lasers in Engineering. 130-134. 2018
- Generation of nano-voids inside polylactide using femtosecond laser radiation. Applied Physics A. 789. 2017
- Case study on the ultrafast laser ablation of thin aluminum films: dependence on laser parameters and film thickness. Applied Physics A. 215. 2016
- Simulation of the spherical aberration by focusing laser radiation in transparent materials: Comparison of different simulation approaches. Applied Physics A. 219. 2016
- Laser induced quasi-periodical microstructures with external field modulation for efficient gain in photovoltaics. CIRP Annals - Manufacturing Technology. 207-210. 2013
- Dynamical detection of optical phase changes during micro-welding of glass with ultra-short laser radiation. Measurement Science and Technology. 015302. 2008
- In situ measurement of plasma and shock wave properties inside laser-drilled metal holes. Measurement Science and Technology. 105703. 2008
- Si-Ka radiation generated by the interaction of femtosecond laser radiation with silicon. Journal of Physics: Conference Series. 159-163. 2007
- Herstellung eines Mikroaktors auf der Basis lasergestützter Strukturierung von PVD-abgeschiedenen Bimetallstrukturen. Plus Produktion von Leiterplatte und Systemen. 815-821. 2004
Konferenzpaper
- Untersuchung der transienten optischen Eigenschaften von SiO2 nach nichtlinearer Anregung mit ultrakurz gepulster Laserstrahlung. Scientific Reports 2023, 13. Mittweidaer Lasertagung. 53-56. 2023
- Untersuchungen zur Bestrahlung von Goldschichten mit Doppelpulsen von ultrakurz gepulster Laserstrahlung. Scientific Reports 2023, 13. Mittweidaer Lasertagung. 36-40. 2023
- Untersuchungen zur Spallation und Phasenexplosion an Chromschichten mittels Pump-Probe Reflektometrie. DVS Berichte. 44-49. 2022
- Validierung der Modellierung der Ablationsdynamik dünner Goldschichten induziert durch ultrakurz gepulste Laserstrahlung. DVS Berichte. 50-55. 2022
- Bestrahlung einer dicken Goldschicht mit Einzelpulsen von ultrakurz gepulster Laserstrahlung. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 139-142. 2021
- Entstehung unerwünschter Röntgenstrahlung bei der Ultrakurzpuls-Laserbearbeitung. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 91-99. 2021
- Excitation and ablation of P3HT with spectral shaped ultrafast mid-IR laser radiation. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 135-138. 2021
- Excitation and ablation of P3HT with spectral shaped ultrafast mid-IR laser radiation. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 2021
- Laser induced crystallization of Co–Fe–B films. Scientific Reports. 14104. 2021
- Laserbestrahlung als neues Verfahren zur Modifikation und Optimierung magnetischer Tunnelübergänge. Innovative Verfahren der Lasermaterialbearbeitung, DVS Berichte. 94-99. 2021
- Laserinduzierte Kristallisation dünner Co-Fe-B-Schichten. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 115-118. 2021
- Spatial Conductivity Distribution in Thin PEDOT:PSS Films after Laser Microannealing. ACS Applied Electronic Materials. 2825-2831. 2021
- Ultrakurzpuls Lasermesstechnik in der Lasermikromaterialbearbeitung. Innovative Verfahren der Lasermaterialbearbeitung, DVS Berichte. 247. 2021
- Ultraschnelle zeit- und ortsaufgelöste Reflektometrie an der Rückseite von Goldschichten verschiedener Schichtdicke. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 143-146. 2021
- Untersuchungen zur fluenzabhängigen transienten Reflektivität von Edelstahl nach Anregung mit ultrakurz gepulster Laserstrahlung. Scientific Reports 2021, 12. Mittweidaer Lasertagung. 103-105. 2021
- Dynamik des komplexen Brechungsindexes von Gold nach Anregung mit ultrakurz gepulster Laserstrahlung. Scientific Reports 2019, 11. Mittweidaer Lasertagung. 177-180. 2019
- Modellierung und zeitaufgelöste Messung des Abtrages von Goldschichten unterschiedlicher Schichtdicke durch ultrakurz gepulster Laserstrahlung. Scientific Reports 2019, 11. Mittweidaer Lasertagung. 45-49. 2019
- Simulation der optischen Antwort aufgrund von Höhenänderungen von angeregten Goldschichten nach Bestrahlung mit ultrakurz gepulster Laserstrahlung. Scientific Reports 2019, 11. Mittweidaer Lasertagung. 164-169. 2019
- Untersuchung der Anregungsmechanismen von PMMA mit ultrakurz gepulster mid-IR Laserstrahlung. Scientific Reports 2019, 11. Mittweidaer Lasertagung. 62-65. 2019
- Solving the logarithmic Monge-Ampère equation with a RK4-algorithm for beam shaping purposes of femtosecond laser beams with a spatial light modulator. Proceedings of SPIE. 2018
- Konzeption und Aufbau eines orts- und zeitaufgelösten Ellipsometers zur Laser-Prozessanalyse. Scientific Reports 2017, 18. Nachwuchswissenschaftlerkonferenz (NWK). 94-99. 2017
- Untersuchung der dynamischen Prozesse beim Erwärmen und Abtragen dünner Goldschichten nach Anregung mit ultrakurz gepulster Strahlung. Scientific Reports 2017, 10. Mittweidaer Lasertagung. 119-122. 2017
- Untersuchungen zu Resonant-Infraroter Laserablation (RIA) an PMMA und BK7 Glas durch ultrakurz gepulster Laserstrahlung. Scientific Reports 2017, 10. Mittweidaer Lasertagung. 18-21. 2017
- Vergleich verschiedener physikalischer Modelle zur Beschreibung der polarisationsabhängigen Reflektometrie und Ellipsometrie. Scientific Reports 2017, 10. Mittweidaer Lasertagung. 111-114. 2017
- Simulation of the spherical aberration of focused laser radiation in transparent materials: comparison of different simulation approaches. Applied Physics A. 482. 2016
- Simulation der Temperaturverteilung in Gold und Platin infolge der Bestrahlung mit ultrakurzen Pulsen. Scientific Reports 2015, Lasertechnik. 175-178. 2015
- Einzelpulsabtrag von Metallschichten mit ultrakurzen Laserpulsen unterschiedlicher Pulsdauer. Scientific Reports 2015, Lasertechnik. 196-200. 2015
- Black silicon solar cell processing with high repetitive laser systems. Proceedings of the 27th European Photovoltaic Solar Energy Conference. 2012
- Development of a time-resolved white-light interference microscope for optical phase measurements during fs-laser material processing. Applied Physics A. 231-235. 2010
- Time-resolved white-light interferometry for ultrafast metrology. AIP Conference Proceedings. 891. 2010
- Melt dynamics of aluminum irradiated with ultrafast laser radiation at large intensities. Journal of Applied Physics. 2009
- Micro-welding of glass by fs-laser irradiation and process observation using fs-pump-probe white light interference microscopy. Proceedings of the Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference. 2009
- Optical Phase Measurements during fs-Processing of Materials Using Time-Resolved White-Light Interferometry. Proceedings of the Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference. 2009
- Investigation of increased drilling speed by online high-speed photography. Optics and Lasers in Engineering. 705-710. 2008
- Investigations of the ultrafast laser induced melt dynamics by means of transient quantitative phase microscopy (TQPm). Proceedings of SPIE. 2008
- Investigations on melting and welding of glass by ultra-short laser Radiation. Journal of Laser Micro/Nanoengineering. 114-118. 2008
- Investigations on ultrafast welding of glass-glass and glass-silicon. Applied Physics A. 171-175. 2008
- Joining of thin glass with semiconductors by ultra-fast high-repetition laser welding. Proceedings of SPIE. 2008
- Non-interferometric transient quantitative phase microscopy for ultrafast engineering. Applied Physics A. 165-169. 2008
- High-precision, high-throughput fusion welding of glass using femtosecond laser pulses. Journal of Laser Micro/Nanoengineering. 57-63. 2007
- Local melting of glass material and its application to direct fusion welding by ps-laser pulses. Journal of Laser Micro/Nanoengineering. 7-14. 2007
- Time-resolved investigations of plasma and melt ejections in metals by pump-probe shadowgraphy. Applied Physics A. 917-920. 2007
- Observation of melt ejection in metals up to 1 µs after femtosecond laser irradiation by a novel pump-probe photography setup. Proceedings of SPIE. 2006
- Subwavelength ripple formation induced by tightly focused femtosecond laser radiation. Applied Surface Science. 8576-8579. 2006
- Ultra-fast diagnostics of laser-induced melting of matter. Journal of Laser Micro/Nanoengineering. 264-268. 2006
- Coloured marking inside glass by laser radiation. Proceedings of SPIE. 2005
- Electron excitation in glasses followed by time- and space-measuring tools. Applied Surface Science. 66-70. 2005
- Approximate model for laser trepanning with microsecond Nd:YAG laser radiation. Applied Physics A. 1157-1159. 2004
- Electron excitation in glasses and sapphire followed by time- and space-measuring tools. Proceedings of SPIE. 239. 2004
- Formation of subwavelength-laser-induced periodic surface structures by tightly focused femtosecond laser radiation. Proceedings of SPIE. 168. 2004
- Time-resolved-photography and transient absorption spectroscopy of excited dielectrics by infrared ultrashort laser radiation. Proceedings of the 1st Pacific International Conference on Applications of Lasers and Optics. 1-4. 2004
- Ultrafast time-resolved photography of femtosecond laser induced modifications in BK7 glass and fused silica. Applied Physics A. 923-925. 2004
- Theoretical analysis of second harmonic characteristics generated by KTiOPO4 crystal. Proceedings of SPIE. 514. 2003
- Ultrafast Pump and Probe Investigations on the Interaction of Femtosecond Laser Pulses with Glass. Proceedings of SPIE. 393-400. 2003
- Drilling of cooling holes and shaping of blow-out facilities in turbine blades by laser radiation. Materials for Advances Power Engineering 2002. 743-750. 2002
- Time Resolved Optomechanical Investigations on the Interaction of Laser Radiation with Glass in the Femtosecond Regime. Proceedings of International Congress on Applications of Lasers & Electro-Optics. 1577-1585. 2002
- UV laser radiation-induced modifications and microstructuring of glass. Proceedings of SPIE. 258. 2002
- Dynamics of laser-induced cracking in glasses at a picosecond time scale. Proceedings of SPIE. 539-544. 2001
- Nd:YAG laser micromachining of SiC precision structures for MEMS. Proceedings of SPIE. 109. 2001
- Electron beam-physical vapor deposition - thermal barrier coatings on laser drilled surfaces for transpiration cooling. Surface and Coatings Technology. 49-53. 2000
- Microholes in zirconia coated Ni-superalloys for transpiration cooling of turbine blades. Proceedings of SPIE. 218-226. 2000
- Drilling of ceramics and polymers by diode pumped solid state laser. Proceedings of International Congress on Applications of Lasers & Electro-Optics. 1997
Konferenzposter
- Spectroscopic Pump-Probe-Reflectometry of NIR Excited Silicon. Scientific Reports 2023, 13. Mittweidaer Lasertagung. 162-166. 2023
- Untersuchungen zur Laserfilamentierung mit ultrakurz gepulster Laserstrahlung. Scientific Reports 2023, 13. Mittweidaer Lasertagung. 167-170. 2023
- Case study on the ultrafast laser ablation of thin aluminium films: dependence on laser parameters and film thickness 2015
Monographie
Sammelbandbeitrag
- Investigation on the Ablation of thin Metal Films with Femtosecond to Picosecond-pulsed Laser Radiation. Physics Procedia. 93-103. 2016
- Micromachining. Springer Series in Optical Sciences. 155-173. 2016
- Modifications in glass induced by femtosecond laser radiation. 4th Student Scientific Conference on Solid State Physics, SSCSSP-4. 2014
- Strukturieren mit Laserstrahlung. Schweizer Verband für die Materialtechnik. 4-8. 2000
Wissenschaftliche Vortragsfolien
- Front and rear surface ablation within gold films with variable film thickness induced by ultrafast laser radiation 2022

Präsentationen

Vortrag
- SIMULATION DER TEMPERATURVERTEILUNGEN IN GOLD UND PLATIN INFOLGE DER BESTRAHLUNG MIT ULTRAKURZEN LASERPULSEN, vortragende Person 2015

Mitglied bei

Organic Electronics Saxony e.V. Vereinsmitglied 2014 -

betreut/e wissenschaftliche Arbeit

Masterarbeit
- Untersuchungen zur ultraschnellen Ellipsometrie von Laserprozessen bearbeitet durch Pflug, Theo 2017
- Untersuchung der Ablationsdynamik dünner Metallschichten durch ultrakurz gepulste Laserstrahlung bearbeitet durch Frank, Matthias 2017
- Validierung des Systems "Multimarkermonitor" auf der Basis eines GC-IMS für die Nutzung in der medizinischen Diagnostik als Screeningmethode bearbeitet durch Räßler, Tobias 2015
Promotion
- Strong field excitation of electrons into lacalized states of fused silica bearbeitet durch Pflug, Theo 2017 - 2022
- Multiphysikalische Simulationen in der Lasermaterialbearbeitung unter Beachtung der Schmelzbaddynamik und Plasmaausbildung bearbeitet durch Olbrich, Markus 2014 -

hat Großgeräte

vollständiger Name

Prof. Dr. rer. nat. habil. Alexander Horn

zugehörig zur Einrichtung

42-102

Postanschrift

Am Schwanenteich 4b

Mittweida

09648

Deutschland
Schillerstr. 10

Mittweida

09648

Deutschland

Postadresse

Technikumplatz 17

Mittweida

09648

Deutschland

KoautorInnen-Netzwerk

Koforscher-Netzwerk

Kontaktdaten

horn4@hs-mittweida.de

+49 3727 581069

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