Dr. Christoph Döring has joined our team in Kaiserslautern. He has taken on the important responsibilities of scientific and laboratory manager of our group at the RPTU. In addition, he is responsible for organizing the advanced lab courses – Fortgeschrittenen Praktikum FP at the departmental level. Christoph also manages the university’s radiation protection courses and is the deputy radiation protection officer at RPTU.

Christoph received his PhD in 2007 in Physics from the RPTU with Prof. Henning Fouckhardt on Combination of Transverse Mode Selection, Active Mode-Locking and Pulse Shaping in Broad Area Lasers. He later investigated these aspects further using self-produced Sb semiconductor lasers. The technology of molecular beam epitaxy (MBE), lithography, and dry etching (RIE) methods was applied and further developed. In this context, the working group has also developed an in-situ measurement technique for plasma etching that enables monolayer-precise etch depth control [1]. Further research activities included developing microfluidic approaches into so-called Lab on a Chip 2.0 systems. One approach here is the realization of analysis chips in which individual droplets with volumes in the nanoliter range can be moved and manipulated using a laser beam, called optoelectrowetting (OEW) [2].

[1] A.-K. Kleinschmidt, L. Barzen, J. Strassner, C. Doering, H. Fouckhardt, W. Bock, M. Wahl, M. Kopnarski:  „Precise in situ etch depth control of multilayered III−V semiconductor samples with reflectance anisotropy spectroscopy (RAS) equipment,“ Beilstein J. Nanotechnol. 7, (2016). https://doi:10.3762/bjnano.7.171

[2] C. Doering, J. Strassner, H. Fouckhardt: „Microdroplet Actuation via Light Line Optoelectrowetting (LL-OEW),“ International Journal of Analytical Chemistry, (2021). https://doi.org/10.1155/2021/3402411