LaserCutterGuide.com’s (LSG) strives to provide an online timely and relevant laser cutting guide to help provide value for buyers and operators looking for answers. Read more about LSG’s main contributing authors below:
Johannes Gruenwald
Johannes Gruenwald obtained his Ph.D. in physics in 2012 from the University of Innsbruck. A few years back he re-discovered his passion for writing. Thus, he started to make writing a part of his job. He specializes in SEO-optimized scientific and technological texts with a strong focus on physics. His fields of expertise are laser and plasma physics (but he is comfortable with writing about most branches of the natural sciences).
Johannes got his master’s degree from the University of Graz, where he constructed a femtosecond laser system for optical plasma diagnostics. After that, he pursued his Ph.D. at the University of Innsbruck, where he was, amongst other things, responsible for constructing a so-called laser-heated plasma probe.
After finishing his Ph.D., Johannes worked in different fields of science and industry. Most notably, he joined the ELI (extreme light infrastructure) in Prague in 2015, where he worked on laser-plasma interactions. Besides his writing activities, Johannes is still working in science as well. Interested readers can check out his google scholar, LinkedIn and Researchgate profiles:
Jhonattan Ramirez
Jhonattan Ramirez received his B.Sc. in Computer and Telecommunications Engineering from Universidad Católica de Pereira in 2009, M.Sc. degree in Telecommunications Engineering from Universidad Pontificia Bolivariana (UPB – Medellin) in 2012, and PhD. in Electrical Engineering from the University of Campinas (UNICAMP) in 2017.
Jhonattan was a visiting Ph.D. researcher between 2014 and 2015, at the Catalan Institute of Nanoscience and Nanotechnology. Between 2018 and 2019 he was at the University of California in Santa Barbara (UCSB) as a Postdoctoral Researcher in the Department of Electrical and Computer Engineering (ECE), focusing his research on graphene electro-optical modulators. Currently, he holds a position at the Federal University of Minas Gerais (UFMG) as an Assistant Professor at the Electronic Engineering Department in the Engineering School.
As a scientist Jhonattan is actively involved in developing technological solutions through new manufacturing processes focused on integrated micro- and nano-photonic devices based on silicon and polymer photonics, and its implementation in telecommunication applications, and sensor components. He was elected as OPTICA Ambassador (Formerly Optical Society of America – OSA) within the 2022 class. He is also an IEEE Senior Member (Institute of Electrical and Electronics Engineers), member of OPTICA (a global leadership society for optics and photonics), Brazilian Photonics Society (SBFoton), and Brazilian Microelectronics Society (SBMicro).
