New tools for nanoscale optical spectroscopy - Functional imaging of single nanostructures using antennas


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 Nazionalità Coordinatore Germany [DE]
 Totale costo 1˙488˙077 €
 EC contributo 1˙488˙077 €
 Programma FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call ERC-2011-StG_20101014
 Funding Scheme ERC-SG
 Anno di inizio 2011
 Periodo (anno-mese-giorno) 2011-10-01   -   2016-09-30


# participant  country  role  EC contrib. [€] 

 Organization address address: GESCHWISTER SCHOLL PLATZ 1
postcode: 80539

contact info
Titolo: Ms.
Nome: Monika
Cognome: Bernhardt
Email: send email
Telefono: +49 89 21803449
Fax: +49 89 21802985

DE (MUENCHEN) hostInstitution 1˙488˙077.00

 Organization address address: GESCHWISTER SCHOLL PLATZ 1
postcode: 80539

contact info
Titolo: Prof.
Nome: Achim
Cognome: Hartschuh
Email: send email
Telefono: +49 89 2180 77515

DE (MUENCHEN) hostInstitution 1˙488˙077.00


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diffraction    resolution    nm    microscopy    optical    enhanced    light    ing    single    nanostructures    interactions    sciences    antenna    functional    signal    tools    time    energy   

 Obiettivo del progetto (Objective)

'Optical microscopy forms the basis of most of the natural sciences. Besides the direct visualization of objects hidden to the unaided human eye, optical spectroscopy – or in other words “colour vision”- is of prime importance providing information on electronic and vibronic properties. In addition, experiments using ultrafast laser pulses provide the highest possible temporal resolution enabling real-time observations of photo-induced processes. Conventional microscopy, however, suffers from diffraction resulting in limited spatial resolution of about 300 nm and low signal levels.

The aim of this proposal is to develop novel spectroscopic tools with sub-diffraction resolution. Our approach is based on the localization and enhancement of light-matter interactions using optical antennas. We have shown that antenna-enhanced microscopy provides 10 nm resolution combined with enormous signal amplification and now envision new techniques that extend existing schemes into the femtosecond time-domain with further improved image contrast. Semiconductor nanowires and carbon nanotubes possess unique properties crucial to many areas of technology including communications, alternative energy and the biological sciences. At present, there is a significant lack of understanding regarding the physics of these materials. For example, the correlation between local atomic structure and the resulting optical and functional properties.

We will first address fundamental scientific questions arising from highly localized optical probing and explore new phenomena including antenna-enhanced single photon emission and energy transfer. Using our newly developed tools, we will study functional properties of single nanostructures and demonstrate antenna-enhanced light-detection and generation.

In summary, our work will lead to fundamentally new optical tools providing unprecedented insights into nanostructures and will substantially advance our understanding of light-matter interactions.'

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