Category: news
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International Workshop on Nitride Semiconductors (IWN)
Head of laboratory Dr. Irmantas Kašalynas and PhD student Justinas Jorudas represented THz Photonics laboratory at International Workshop on Nitride Semiconductors (IWN) which took place in Berlin, Germany from 10th till 14th of October. Our lab presented scientific results in 1 oral and 3 poster presentations.
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New study on formation and drift of space-charge domains with velocity of sound in n-type GaN
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…
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THz Atelier participates at the IRMMW-THz 2022 conference in Delft, the Netherlands
From 28th of August till 2nd of September the THz Photonics laboratory is going to the 47th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)! Our all lab is going to take part in this massive scientific event. This year we discuss very interesting scientific results in 4 oral and 6 poster presentations (10…
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Dissipative Parametric Gain in a GaAs/AlGaAs Superlattice in PHYSICAL REVIEW LETTERS
New study is published in the journal “Physical Review Letters” from American Physical Society in the field of parametric generation of EM oscillations in GHz-THz frequency range. The work reports on the first observation of the dissipative parametric generation in a subcritically doped GaAs/AlGaAs superlattice (SL) subjected to a DC bias and a microwave pump.…
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THz Atelier participated at the Franco-German Terahertz Conference (FGTC) 2022
The second FGTC took place in La Grande Motte, France, from 16th to 19th of May. THz Atelier presented their work on AlGaN/GaN HEMT based detectors and emitters. https://terahertz2022.sciencesconf.org/
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Rusnė Ivaškevičiūtė-Povilauskienė apie gyvybės paieškas kosmose LRT laidoje ,,Mokslas Skubantiems”
Godos Raibytės radio laidoje ,,Mokslas Skubantiems” apie gyvybės paieškas kosmose pasakoja THz fotonikos laboratorijos doktorantė Rusnė Ivaškevičiūtė-Povilauskienė, kuri 2017 m. stažavosi NASA AMES tyrimų centre. Laidos įrašas LRT mediatekoje.
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High-Frequency and High-Power Performance of n-Type GaN Epilayers with Low Electron Density Grown on Native Substrate
The article by Roman M Balagula et al. just published in the journal MDPI Materials. The study is aimed towards the high frequency response properties of the n-type GaN epilayers on a native stubstrates. The results indicate new practical possibilities of the GaN material controlled by an external electric field for the development of novel…
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Development of Quaternary InAlGaN Barrier Layer for High Electron Mobility Transistor Structures
Work by J. Jorudas et al. was recently published in the MDPI Materials journal reporting about the development of high electron mobility transistor structures based on quaternary lattice matched InAlGaN barrier layer. The thorough study on the morphological, optical and electrical properties of the layers is accomplished aiming towards application for microwave power and terahertz…
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New work published concerning advantages of optical modulation in terahertz imaging for study of graphene layers
The newest study was published in Journal of Applied Physics by Rusnė Ivaškevičiūtė-Povilauskienė et al. about the advantages of optical modulation in terahertz imaging for study of graphene layers. It was demonstrated that optical modulation together with simultaneous terahertz (THz) imaging application enables an increase in contrast by an order of magnitude, thereby illustrating the…
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Smalsumo genas THz fotonikos laboratorijoje
Rolando Maskoliūno vedamoje laidoje ”Smalsumo genas” (transliuojama per LRT) kalbama apie metamedžiagas ir terahercų technologiją. Apie vykdomus metamedžiagų tyrimus FTMC pasakoja Dr. Dalius Seliuta, o apie terahercų taikymus — Dr. Linas Minkevičius. Laidos įrašą galima pamatyti čia.