Dr. Alexandre Mermillod-Blondin
alexandre.mermillod(at)mbi-berlin.de
+49 30 6392 1214
A1: Strong Field Processes at Extreme Wavelengths
Haus A, 3.18
Position
Member of project 3.2 "Solids and Nanostructures: Electrons, Spins, and Phonons"
Research
The activity of our research group is centered around the direct laser writing of 3d micro-optical systems in solid transparent materials with fs-laser pulses. Our activity is divided in the two topics of (i) Fundamentals of the laser-matter interaction during microprocessing with ultrashort laser pulses and (ii) Direct laser printing of photonic structures with ultrafast laser pulses.
Topic (i) aims at:
- determining which fundamental mechanisms prevail during plasma formation with ultrashort pulses
- studying the relaxation processes leading to structural modifications, for instance thermal transients and defect formation.
Topic (ii) deals with the fabrication of functional micro-optical systems, mainly in the bulk of fused silica. The main applications include:
- Long term data storage
- Direct part marking under the surface
- Printing of integrated optical sensors
Curriculum vitae
Since 2015: Principal Investigator on a DFG-funded research project entitled “Micromachining with few-cycle pulses”
2009-: Research associateat the Max-Born Institute, Berlin. Developed, designed and tested advanced optical methods for the characterization of femtosecond-laser induced micro- and nanostructures in the volume of transparent materials: phase-contrast microscopy, quantitative phase-shift interferometry, time-resolved microscopy with random lasers.
2008-2009: Project associateoptics/sensors,Hella Aglaia Mobile Vision GmbH, Berlin. Participated in the development of a front camera for car driver assistance, designed and tested an optical method able to measure the modulation transfer function of the cameras in a production environment.
2007-2008: Research associate,Princeton University, Princeton, NJ, USA. Developed and characterized a new generation of adaptive optics components based on tunable acoustic lenses. Demonstrated applications in imaging (microscopy, fast zoom lens) and non imaging optics (beam focusing, spatial beam shaping). Promoted devices to investors and users. Participated in device patenting. Technology commercially available (www.tag-optics.com).
MBI Publikationen
- Optimization of the energy deposition in glasses with temporally-shaped femtosecond laser pulses Physics Procedia 12 (2011) 76-81
- Nanosize structural modifications with polarization functions in ultrafast laser irradiated bulk fused silica Optics Express 18 (2010) 24809-24824
- Size corrections during ultrafast laser induced refractive index changes in bulk transparent materials Journal of Laser Micro/Nanoengineering 4 (2009) 45-50
- Dynamics of femtosecond laser induced voidlike structures in fused silica Applied Physics Letters 94 (2009) 041911/1-3
- Designing laser-induced refractive index changes in "thermal" glasses SPIE Proceedings Series 7005 (2008) 700518/1-4
- Size correction in ulrafast laser processing of fused silica by temporal pulse shaping Applied Physics Letters 93 (2008) 021921/1-3
- Flipping the sign of refractive index changes in ultrafast and temporally shaped laser-irradiated borosilicate crown optical glass at high repetition rates Physical Review B 77 (2008) 104205/1-8
- Spatial distribution of refractive index variations induced in bulk fused silica by single ultrashort and short laser pulses Journal of Applied Physics 101 (2007) 043506/1-7
- Transient response of dielectric materials exposed to ultrafast laser radiation Applied Physics A - Materials Science & Processing 84 (2006) 413-422
- Tailored excitation sequences for optimized laser-induced modifications in bulk transparent materials exposed to sub-ps irradiation Photonics Photon Processing in Microelectronics and Photonics V 6106 SPIE Proceedings (2006) 610601/1-9