ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT wigner.hun-ren.hu>]

SZFI SeminarHanus VaclavHUN-REN Wigner RCP SZFISpatially resolved attosecond 
spectroscopy and PHz wiresTuesday, 13 January 2026, 10:00, KFKI Campus, Bldg. 
1, 2nd floor, Conference RoomThe innovations in the information and 
communication technology (ICT) are driven by the demand for faster data 
transfer and higher electric efficiency for signal processing technologies. 
The operation of contemporary computing devices relies on managing charge 
transport using electric fields generated by applied voltages. In such 
electronic devices the voltage switching is performed at GHz frequencies. 
Concurrently, pulsed light sources of controllable electric field waveforms 
are proven capable to drive electronic currents in various solids at PHz. Can 
we exploit the full potential of light-driven currents and shift the paradigm 
of computing towards PHz frequencies?In Femtolab.hu at HUN-REN Wigner we 
already routinely operate electronic junctions where PHz currents are driven 
by the light field. In our research, we have pushed the energy demands of 
such a switch, demonstrating an operation in sub-nJ light pulse energy 
regime. Yet, turning this to a useful device requires a deeper understanding 
of the energy flow between light and medium and finding the right material 
that will enable energy efficient PHz devices.In the next four years of NKKP 
Starting project called ASPIC, we are going to employ methods of time-domain 
spectroscopy and spatially resolved attosecond spectroscopy to obtain a 
detailed picture about mechanism of PHz current driving. We will explore 
possibilities of transporting PHz signals and by researching materials at 
microscopic scale we will define a PHz wire with its prospect to become a 
building block of a new era optoelectronic devices in ICT. Minden 
érdeklődőt szívesen látunk! - Everyone is welcome to attend.Attila 
Nagysem-admin AT wigner.hun-ren.hu