- Warsaw-4-PhD School
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Events
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We cordially invite you to attend the 8th European Conference on Crystal Growth (Warsaw, July 21-25) and the 4th European School on Crystal Growth (Jachranka, July 17-21), co-organized by Unipress as one of the main organizers. The events will bring together leading researchers in the field of crystal growth and characterization, providing an excellent opportunity to exchange knowledge and experience. Detailed information on the program, including a list of sessions, invited talks and abstract submission deadlines, can be found on the official website. |
Unipress Thursday Seminar
Friday, 17 May 2024 10:40 |
More than 40 years ago, a new direction in physics opened up with the arrival of plasma-wave electronics. The possibility that the plasma waves could propagate faster than electrons fascinated all. Therefore, it was initially expected that plasmonic devices, including detectors and generators of electromagnetic radiation, would be able to work effectively in the very high frequencies - terahertz (THz) range, inaccessible to standard electronic devices. However, numerous experimental attempts to realize the amplifiers or emitters failed: the intensity of radiation turned out to be too small, plasma resonances too broad, or devices operated only at cryogenic temperatures. This fascinating subject will be discussed during next Unipress Thursday seminar by the awardee of the ERC Advanced Grant Prof. Wojciech Knap from our Institute CENTETRA Laboratories in a talk "Plasmonic Crystals in Graphene and GaN for Terahertz Active Devices”. Abstract of the talk is here. Join us online via Zoom platform on Thursday, May 23, 2024 at 3:00 pm. To get the link to Zoom meeting, please contact us at dyrekcja@unipress.waw.pl IHPP PAS Seminar on Nitride Semiconductors
Monday, 13 May 2024 15:35 |
Dear Ladies and Gentlemen, We are pleased to invite you to the IHPP PAS Seminar on Nitride Semiconductors. The presentation will be held in a fully remote mode through Zoom platform (to get the link, please contact us at nitride_seminar@mail.unipress.waw.pl ). The next seminar is scheduled on Monday 20.05.2024 at 14:00. Speaker: Dr. Mohsin Haji (National Physical Laboratory, Time and Frequency Department, United Kingdom) Title: Holdover atomic clocks Abstract: Link Sincerely, Tadeusz Suski Spotlight talk - Dr. Andriy Palasyuk
Monday, 06 May 2024 11:01 |
The Warsaw Doctoral School in Natural and Biomedical Sciences and the Institute of High Pressure Physics PAS cordially invites you to a SPOTLIGHT TALK "Adressing the Gap Magnet Problem" given by Dr. Andriy Palasyuk from Critical Materials Institute, Ames Laboratory, USA When and where: Tuesday, May 21, 2024, 11:00 (duration: 60 min + more) at the IHPP PAS al. Prymasa Tysiąclecia 98, seminar room 2nd floor and online - the link to Zoom meeting and abstract are available in this file. 10th Workshop on the Physics and Technology of Semiconductor Lasers
Thursday, 18 April 2024 14:06 |
10th Workshop on the Physics and Technology of Semiconductor Lasers will take place from 13th to 18th October 2024 in Sopot, Poland. This is a must-attend event for everyone interested in semiconductor laser physics and technology. Kindly mark these dates in your calendar! The first announcement can be downloaded here. Abstract submission deadline - 30th June 2024
More information about the scope of the 10th Workshop on the Physics and Technology of Semiconductor Lasers, its Program Committee, Honorary Chair and the Workshop venue can be found at: https://10thlaserworkshop.unipress.waw.pl/ Save the date for ICNS-15!
Wednesday, 20 March 2024 12:00 |
International Conference on Nitride Semiconductors - ICNS-15 will be held in Malmö in Sweden from July 6-11, 2025. ICNS-15 will present high-impact scientific and technological advances in materials and devices based on group-III nitride semiconductors, and feature plenary sessions, parallel topical sessions, poster sessions and an industrial exhibition. The conference is chaired by Vanya Darakchieva, Lars Samuelson and Piotr Perlin. ICNS-15 will celebrate the achievements of Profs. Bo Monemar and Tadek Suski as honorary chairs. Save the date for this exciting event! |
Stypendia FNP START przyznane
Tuesday, 14 May 2024 09:42 |
Fundacja na rzecz Nauki Polskiej ogłosiła listę laureatów i laureatek 32. konkursu w programie START. Prestiżowe stypendia otrzyma 100 wybitnych młodych naukowców, w tym mgr inż. Mikołaj Żak z naszego Instytutu w dziedzinie elektronika. Gratulujemy! Program START jest najstarszym w Polsce programem stypendialnym dla najlepszych młodych naukowców reprezentujących wszystkie dziedziny nauki. Jego celem jest wspieranie wybitnych młodych uczonych i zachęcanie ich do dalszego rozwoju naukowego. Laureaci i laureatki programu START w edycji 2024 otrzymają roczne stypendium w wysokości 30 tys. zł. Mogą je przeznaczyć na dowolny cel. Więcej o programie START i tegorocznej jego edycji na stronie FNP. From soft matter dynamics to global population evolution
Monday, 06 May 2024 13:39 |
In the globalized world of the 21st century, a reliable description of the evolution of the world's population is becoming increasingly important. A critical analysis of the literature on the subject shows that the problem of the world population continues to become one of the most important cognitive challenges. A recent publication by A. A. Sojecka and A. Drozd-Rzoska “Global Population: From Super-Malthus Behavior to Judgment Day Criticality” [Scientific Reports 14 (2024) 9853] https://doi.org/10.1038/s41598-024-60589-3, presents a novel model analysis of the evolution of the global population using a methodology originally developed by Aleksandra Drozd-Rzoska for the dynamics of complex soft matter systems, in particular for subcooled liquids, glasses, and supercritical fluids. Symposium I at E-MRS Fall Meeting
Friday, 26 April 2024 11:04 |
This year Anna KAFAR from our Instutute together with Takuya MAEDA, Matteo MENEGHINI, and Eva MONROY organize Symposium I “III-nitrides and their use in electronics and optoelectronics” within the E-MRS 2024 Fall Meeting & Exhibit. Conference is organized at the University of Technology in Warsaw, Poland from 16th to 19th September 2024. The symposium is a platform for exchanging research results and discussions related to III-nitride semiconductor growth, characterization and device fabrication. This includes traditional materials: GaN, InGaN, AlGaN, as well as so-called new nitrides: NbN, ScAlN. All the information is here. Submission Deadline: June 6 (Thursday), 2024 Notification about decision: July 15 (Thursday), 2024 More info and submission: https://www.european-mrs.com/iii-nitrides-and-their-use-electronics-and-optoelectronics-emrs Study of liquid crystals with nanoparticles
Thursday, 11 April 2024 09:32 |
Research carried out at our Institute in the NL10 laboratory has shown interesting properties of nanocollides based on a liquid crystal (MBBA) with the addition of BaTiO3 nanoparticles. Previous work by this group has already shown that adding a minimal amount of nanoparticles fundamentally changes the properties of the system. This time, the properties were examined in the direction perpendicular to the long axis of the molecules. The studied nanocolloids showed that in the isotropic phase a pre-transition effect of the dielectric constant is observed, which can be related to the so-called negative specific heat. In the nematic phase, which undergoes supercooling, a very strong signature of passing the melting point appears despite the lack of crystallization. The very strong pre-melting effect in the solid phase is explained on the basis of a concept combining the Lipovsky model for nanolayers of liquids between two surfaces, and the hypothesis of the appearance of negative pressures in these layers - leading to the Mossotti Catastrophe behavior. This work also shows for the first time a simple parameterization of changes in electrical permittivity in the low-frequency region (which was a previously unsolved problem) and a previously unknown critical anomaly of the dissipation coefficient, i.e. D = tgδ related to energy dissipation. Th work is published in Open Access paper: A. Drozd-Rzoska, J. Łoś, S.J. Rzoska, The dominance of pretransitional effects in the liquid crystal based nanocolloids: nematogenic MBBA with the transverse permanent dipole moment and BaTiO3 nanoparticles, Nanomaterials 2024, 14, 655 (Impact Factor: 5.3). Fig. Temperature evolutions for tgδ loss (energy dissipation) factor for frequency f=12Hz in MBBA and related nanocolloids with BaTiO3 nanoparticles. The solid green and blue curves are for the critical-like empirical parametrization D(T)=tgδ=δ*+d(T-Tδ)+D(T-Tδ)Ѱ with exponent Ѱ≈4. Note the link of this magnitude to the power loss: P=ωCV2tgδ. |
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