Raman Imaging and Spectroscopy
Our Research
Characterization by non-destructive Raman imaging and spectroscopy provides new insights into applied physics, chemistry and biology. The obtained spectra contain chemical and structural information with respect to i.e. chemical bonding, composition, phase, strain, defects and temperature of a material. In addition, micro-Raman spectroscopy and imaging is a sensitive method to detect carbon related compounds and (other) impurities and their distribution down to the sub-micrometer scale. Its use can help in the understanding, observation, development and improvement of novel materials, devices and technologies, contributing to their higher efficiency and to sustainability.
Research Topics:
Thermal damage threshold [1][2]
Phase transitions [2][3]
Laser micro-annealing [4][5]
Tracking of reactions [6]
Thermography [4][7]
points of contact
Dr. Hilde Hardtdegen
Scientific Staff at ER-C-2
- er-c
- er-c-2
Room 2010
Dr.- Ing. Martin Mikulics
Scientific staff at ER-C-2
- er-c
- er-c-2
Room 2010
Publications
1.M. Mikulics, R. Adam, G. Chen, D. Chakraborty, J. Cheng, A. Pericolo, I. Komissarov, D.E. Bürgler, S.F. Heidtfeld, J. Serafini, S. Preble, R. Sobolewski, C.M. Schneider, J. Mayer, H.H. Hardtdegen, Determination of Thermal Damage Threshold in THz Photomixers Using Raman Spectroscopy, Crystals. 13 (2023) 1267. https://doi.org/10.3390/cryst13081267.
2. M. Mikulics, R. Adam, Roman Sobolewski, S. Heidtfeld, D. Cao, D.E. Bürgler, C.M. Schneider, J. Mayer, H.H. Hardtdegen, Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations, FlatChem. 36 (2022) 100447. https://doi.org/10.1016/j.flatc.2022.100447.
3. M. Mikulics, H.H. Hardtdegen, Fully photon operated transmistor / all-optical switch based on a layered Ge1Sb2Te4 phase change medium, FlatChem. 23 (2020) 100186. https://doi.org/10.1016/j.flatc.2020.100186.
4. M. Mikulics, P. Kordoš, D. Gregušová, Z. Sofer, A. Winden, S. Trellenkamp, J. Moers, J. Mayer, H. Hardtdegen, Conditioning nano-LEDs in arrays by laser-micro-annealing: The key to their performance improvement, Appl. Phys. Lett. 118 (2021) 043101. https://doi.org/10.1063/5.0038070.
5. M. Mikulics, J.G. Lu, L. Huang, P.L. Tse, J.Z. Zhang, J. Mayer, H. Hardtdegen, Laser micro annealing conditioning for the suppression of statistical scatter in freestanding Sb2Te3 nanowire resistance, FlatChem. 21 (2020) 100164. https://doi.org/10.1016/j.flatc.2020.100164.
6. M. Mikulics, Z. Sofer, A. Winden, S. Trellenkamp, B. Förster, J. Mayer, H.H. Hardtdegen, Nano-LED induced chemical reactions for structuring processes,
Nanoscale Adv. 2 (2020) 5421–5427. https://doi.org/10.1039/D0NA00851F.
7. M. Mikulics, P. Kordoš, A. Fox, M. Kočan, H. Lüth, Z. Sofer, H. Hardtdegen, Efficient heat dissipation in AlGaN/GaN heterostructure grown on silver substrate, Appl. Mater. Today. 7 (2017) 134–137. https://doi.org/10.1016/j.apmt.2017.02.008.