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pro vyhledávání: '"Jákli A"'
In this paper we present a novel high-resolution multi-channel FPGA-based time-to-digital converter (TDC). We designed and implemented a complex electronic circuit on the FPGA, whose overall accuracy is several orders of magnitude greater than the ac
Externí odkaz:
http://arxiv.org/abs/2406.17798
Autor:
Adaka, Alex, Rajabi, Mojtaba, Haputhantrige, Nilanthi, Sprunt, Samuel, Lavrentovich, Oleg D., Jakli, Antal
The recently discovered ferroelectric nematic (NF) liquid crystals (LC) have been reported to show an extraordinarily large value of the real part of the dielectric constant at low frequencies. However, it was argued by Clark et al in Physical Review
Externí odkaz:
http://arxiv.org/abs/2406.04698
Freestanding slender fluid filaments of room temperature ferroelectric nematic liquid crystals are described. They are stabilized either by internal electric fields of bound charges formed due to polarization splay, or by external voltage applied bet
Externí odkaz:
http://arxiv.org/abs/2307.16588
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Ferroelectric nematic liquid crystals are fluids exhibiting spontaneous electric polarization, which is coupled to their long range orientational order. Due to their inherent property of making bound and surface charges, the free surface of
Externí odkaz:
https://doaj.org/article/da4a913d37b94670a623e13d7b533e13
Autor:
Máthé, Marcell Tibor, Farkas, Bendegúz, Péter, László, Buka, Ágnes, Jákli, Antal, Salamon, Péter
Publikováno v:
Scientific Reports 13, 6981 (2023)
Studies of sessile droplets and fluid bridges of a ferroelectric nematic liquid crystal in externally applied electric fields are presented. It is found that above a threshold, the interface of the fluid with air undergoes a fingering instability or
Externí odkaz:
http://arxiv.org/abs/2210.14329
Autor:
Perera, Kelum, Nepal, Rony Saha Pawan, Dharmarathna, Rohan, Hossain, Md Sakhawat, Mostafa, Md, Adaka, Alex, Waroquet, Ronan, Twieg, Robert J., Jakli, Antal
Publikováno v:
Soft Matter, 2023, 19, 347
The isotropic to ferroelectric nematic liquid transition had been theoretically studied over one hundred years ago, but its experimental studies are rare. Here we present polarizing optical microscopy studies and theoretical considerations of ferroel
Externí odkaz:
http://arxiv.org/abs/2209.09363
Ramification and labyrinth instabilities in a ferroelectric nematic fluid exposed to electric fields
Publikováno v:
In Journal of Molecular Liquids 1 November 2024 413
Publikováno v:
Phys. Rev. E 105, L052701 (2022)
A thermal gradient-induced circular motion of particles placed on ferroelectric nematic liquid crystal sessile drops is demonstrated and explained. Unlike hurricanes and tornadoes that are the prime examples for thermal motors and where turbulent flo
Externí odkaz:
http://arxiv.org/abs/2201.07556
Autor:
Saha, Rony, Nepal, Pawan, Feng, Chenrun, Hossein, Md Sakhawat, Gleeson, James T., Sprunt, Samuel, Twieg, Robert J., Jakli, Antal
Publikováno v:
Liquid Crystals 2022 49 1784
Ferroelectric nematic liquid crystals represent not only interesting fundamental science, but they also hold promise for storage capacitors with high power density or new information display technology having sub-millisecond switching. In this work w
Externí odkaz:
http://arxiv.org/abs/2104.06520