ELFT HÍRADÓ

[Zimányiné Horváth Vera <Vera.Horvath AT eli-alps.hu>]

Időpont:       2026. augusztus 24., 13:30

Helyszín:      az ELI ALPS konferenciaterme (Szeged, Wolfgang Sandner utca 3.)



Előadó:        Prof. Xueqian Zhang

Cím:            Active functional terahertz emitters enabled by spatial and 
temporal control



Az előadás kivonata:

Functional terahertz (THz) emitters are devices that integrate THz generation 
and manipulation processes together. Compared with traditional cases of 
separate THz generation devices and manipulation devices, they are much more 
compact while free from additional THz insertion and bandwidth losses. 
However, related studies so far are mainly working passively. This report 
introduces two types of functional THz emitters that allow active control of 
the THz emissions: one is a 2D programmable photonic THz phased array via 
spatially selective excitation of nonlinear metasurfaces, enabling dynamic 
beamforming, imaging, and vortex beam generation in a broadband frequency 
range over 0.8-1.4 THz. The other is a uniform ITO-film platform that enables 
ultrafast temporal modulation of THz emission under optical pump, achieving 
sub-picosecond amplitude (80%), spectral (15%) and polarization tuning. These 
works highlight the potential of integrating spatial and temporal modulation 
strategies to create versatile, high-speed, and programmable THz emitters, 
paving the way for next-generation THz technologies in communications, radar, 
and compact spectral systems.



Előadó:        Prof. Quan Xu

Cím:            On-chip integrated meta-devices for terahertz communications



Az előadás kivonata:

This presentation focuses on-chip integrated meta-devices for terahertz (THz) 
communications. We first demonstrate multifunctional surface wave couplers 
for THz wireless receivers that simultaneously identifies frequency, 
polarization, and orbital angular momentum while enabling selective on-chip 
routing. This device integrates mode recognition, free-space-to-chip 
coupling, and demultiplexing into a single platform, with its communication 
performance validated through a practical testbed. Furthermore, we present 
all-silicon on-chip THz devices developed via inverse design and effective 
refractive index engineering. Using an add-drop filter as a representative 
example, we show that this approach achieves excellent on-chip functionality 
with high efficiency and compact footprint. These advances provide new 
pathways toward miniaturized, multifunctional THz communication systems and 
accelerate the practical deployment of meta-optics in high-speed wireless 
networks.



A szeminárium angol nyelvű. Minden érdeklődőt szívesen látunk.

Az előadás online is meghallgatható a következő link használatával:

https://teams.microsoft.com/l/meetup-join/19%3ameeting_NWNjYWQyZDItYmRjOC00MWE1LWI3MTEtOWY3ZDA3NTk4NjIx%40thread.v2/0?context=%7b%22Tid%22%3a%22b207389a-c5cb-4cb0-a1ad-227b94e96448%22%2c%22Oid%22%3a%22c993efcb-59ae-4652-9f68-d7a313727128%22%7d



Üdvözlettel:

ZIMÁNYINÉ HORVÁTH Vera
Látogatóközpont-vezető

TEL             +36 70 491 1412
EMAIL     vera.horvath AT eli-alps.hu<mailto:vera.horvath AT eli-alps.hu>
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www.eli-alps.hu<http://www.eli-alps.hu>
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