Guests at EP2

Two French scientists visit RUB labs

Bruno Cailler and Juslan Lo visited the research group EP2 in Bochum from April 1^st to April 5^th, 2019. Both scientists are working at the Non equilirbium plasma diagnostics laboratory (Diagnostics des Plasmas Hors Equilibre or DPHE) at the  INU Champollion in Albi. Juslan Lo is associate professeor and Bruno Caillier is professor.

Juslan Lo received his Master’s Degree in Electrical Engineering and Automation from the Institut National Polytechnique of Toulouse in 2008 and PhD in Plasma Physics and Engineering from Université de Toulouse III in 2012. His main interests include interactions between plasma discharges, electromagnetic waves and biological substrate. During his PhD., he took interest in reconfigurable plasma-based photonic crystals and metamaterials, specially within microwave range frequencies. He joined INU Champollion in 2015 where he currently holds the position of Associate Professor. His current interest is the coupling between high frequency waves and plasma discharges in order to obtain favorable conditions for target species generation for environmental and medical purposes. His visit to Dr. Achim von Keudell's laboratory in University of Bochum was motivated by different experimental plasma characterization setups used in University of Bochum. He is interested in characterizing plasma discharges used in his work.

Bruno Caillier is working on non equilibrium plasmas at low pressure and atmospheric pressure, his interests are DBD lamp, phosphores excited by plasma, surface treatment and optical diagnostics. He is currently working on setting up a monochromator, he is reprogramming the software to control its displacement, set the parameters and acquire the signal. He is also working on the characterization of a DBD plasma lamp (fed with Argon and Krypton) as a UV photon source based on phosphores deposited on the wall of the lamp and excited by plasma. He is also working on international projects in collaboration: University of Sao Paulo in Brazil with the group nano (Grupo de Nanomateriais e Sistemas Luminescentes), CAPES-COFECUB (2020-2024): Plasma synthesis of gold nanoparticles to study the process of energy transfer from excited lanthanides in the infrared in order to search for powerful photo-thermal effects for the development of nanothermometers; with Universidade de Araraquara (UNIARA) in Brazil: Treatment of edible bacterial cellulose with an Aura ECR source, modification of surface properties, adhesion and decontamination. Polymer plasma treatment for cell growth, adhesion modification; with the University of Oran (USTO) in Algeria: Experimental studies of DBD lamp as a UV photon source, thesis in co-supervision with the University of Oran (USTO); with the LGTex laboratory, in Tunisia: Treatment of textile by plasma processes.

Outreach

Public Talk on Plasma in Liquids in the Blue Square

Prof. von Keudell presented an evening talk October 2019 on plasmas in liquids from eletrolysis to plasma medicine in the series "Neue Fenster zum Universum" in the Blue Square in downtown Bochum.

GUEST AT EXPERIMENTAL PHYSICS II

Sylvain Iséni stays two weeks for electric field measurements on micro cavity plasma arrays

Dr. Sylvain Iséni stayed from October 21st until October 31st, 2019, in the group of Prof. Achim von Keudell. His visit is part of the collaboration with his home institute, GREMI, espacially, Prof. Remi Dussart. Particularly, the focus of the recent visit is are eletric field measurements by optical emission spectroscopy in the project A6 (Dr. Volker Schulz-von der Gathen, Sebastian Dzikowski) of the CRC 1316. In the project micro cavity arrays are investigated.

Furthermore, Dr. Iséni used the chance to participate in the online seminar and had a talk with the title "Temperate micro-plasmas for environmental purposes: sources, properties, cross-diagnostics & challenges".