THz Atelier – Terahertz photonics laboratory
Department of Optoelectronics, Center for Physical Sciences and Technology (FTMC)
PhD These under the title “Optical and Electrical Investigation of GaN-based HEMT and Graphene Structures for Applications in THz Detection” was successfully defended by Justinas Jorudas. The PhD thesis is highlighted with 28 scientific papers and conference proceedings according to Web of Science. Congratulations to dr. Justinas Jorudas and academic supervisor dr. Irmantas Kašalynas with outstanding achievement.
The research article by Roman B. Balagula, Liudvikas Subačius, Paweł Prystawko, and Irmantas Kašalynas is published in Journal of Applied Physics, AIP Publishing. The work entitled “Electro-optical modulation of terahertz beam by drifting space-charge domains in n-GaN epilayers” investigates the transmission modulation of THz field in GaN semiconductor as a response to space-charge domains under near-to-breakdown electrical field conditions.
The open access research article is available through https://doi.org/10.1063/5.0152661
The work was supported by the Research Council of Lithuania through the “Hybrid plasmonic components for THz range (T-HP)” Project (Grant No. DOTSUT-184) funded by the European Regional Development Fund according to the supported activity “Research Projects Implemented by World-class Researcher Groups” under the Measure No. 01.2.2-LMT-K-718-03-0096. The work at Warsaw was supported by the National Center for Research and Development (Grant No. TECHMATSTRATEG-III/0003/2019/EnerGaN).
New paper by Roman Balagula et al. under the title ”Space-charge domains in n-type GaN epilayers under pulsed electric field” is published in the Applied Physics Letters.
The experimental work investigates the formation and drift of space-charge domains with velocity of sound in n-type GaN. The findings defines the constraints
for the design of GaN-based power electronic devices.
The paper can be reached through this DOI: https://doi.org/10.1063/5.0098951