Prelekcj臋 pt. 鈥濪ash dot / dot dash / dash dot / dash dash dash 鈥� Morse Coding with nanotechnology wyg艂osi prof. Sebastian Ma膰kowski z Instytutu Fizyki, Wydzia艂u Fizyki, Astronomii i Informatyki Uniwersytetu Miko艂aja Kopernika w Toruniu.
Wyst膮pienie po艣wi臋cone b臋dzie kodowaniu z wykorzystaniem nanotechnologii, 艂膮cz膮cemu zagadnienia fizyki i nowoczesnych rozwi膮za艅 technologicznych.
Informacje organizacyjne:
- Termin: 14 pa藕dziernika 2026 r. (艣roda), godz. 10:15
- Miejsce: Ma艂a Aula, Wydzia艂 Fizyki i Informatyki Stosowanej U艁, ul. Pomorska 149/153 w 艁odzi
- Prelegent: prof. Sebastian Ma膰kowski, Uniwersytet Miko艂aja Kopernika w Toruniu
- Tytu艂 referatu: Dash dot / dot dash / dash dot / dash dash dash 鈥� Morse Coding with nanotechnology
Abstract: Colloidal semiconductor quantum dots (QDs) are attractive nanoscale emitters due
to their high quantum yields, photostability, and spectral tunability. Silver nanowires (AgNWs),
in turn, support long-range propagation of surface plasmon polaritons (SPPs). During the
presentation I will show how a voltage-free method of precise and reproducible deposition of
QD-containing microdroplets can be combined with controlled positioning of AgNWs to
assemble hybrid nanostructures on demand.
The approach relies on hydrophobic microcapillaries controlled by piezoelectric actuators,
enabling fabrication of microdroplets smaller than 500 nm and containing controlled numbers
of QDs, down to single emitters. Importantly, deposited microdroplets can be repositioned on
the surface without morphological or optical degradation.
In one experiment, a QD-containing microdroplet was moved along a single AgNW while the
nanowire was optically excited at one end. The decrease of luminescence intensity with
distance enabled non-invasive determination of plasmon damping in the AgNW. In another
experiment, two AgNWs were connected by a QD-containing microdroplet. Optical excitation
of one nanowire produced emission from the far end of the second nanowire, demonstrating
remote transfer of optical signals mediated by the QDs.
These results provide a platform for constructing hybrid QD鈥揂gNW architectures with
predefined geometry and functionality, promising for nanoscale optical communication,
information processing, and biosensing.
Spotkanie b臋dzie w j臋zyku angielskim.
Serdecznie zapraszamy do udzia艂u!