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SUMMARY:DNA origami nanotools for nanophotonics
DTSTART:20200228T151500
DTEND:20200228T161500
DTSTAMP:20260925T061634Z
UID:df1ce18d127a5b3cf4a11e58d629818f8c5405635dd2086df0019803
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Guillermo P. ACUNA\,  Department of Physics\, Universit
 y of Fribourg\nThe field of nanophononics is primarily concerned with mani
 pulating light at the nanoscale. The key elements in this field are optica
 l antennas [1]\, which represent the counterparts of radio and microwave a
 ntennas within the visible spectrum. These antennas are mostly built from 
 metallic nanoparticles whose localized surface plasmon resonances enable t
 he control of light fields in the sub-wavelength range. Currently\, optica
 l antennas are being studied for a wide range of applications such as opti
 cal communications\, light harvesting\, enhanced spectroscopies and sensin
 g.\nIn this talk\, we will focus on an alternative bottom-up self-assembly
  approach for the fabrication of optical antennas based on colloidal metal
 lic nanoparticles: the DNA origami technique [2]. We will show how this me
 thod can outperform top-down fabricated optical antennas. In addition\, we
  will also study how DNA origami based optical antennas can enhance fluore
 scence [3\,4]\, direct emission [5]\, shift the apparent emission center [
 6] and be combined with graphene [7]\, natural light harvesting complexes 
 [8] and lithographic structures [9].\n\nReferences\n[1]   Novotny\, L.\;
  Van Hulst\, N. Nat. Photonics 2011\, 5 (2)\, 83–90.\n[2]   Rothemun
 d\, P. W. K. Nature. 2006\, pp 297–302.\n[3]   Acuna\, G. P.\; Möll
 er\, F. M.\; Holzmeister\, P.\; Beater\, S.\; Lalkens\, B.\; Tinnefeld\, P
 . Science (80-. ). 2012\, 338    (6106)\, 506–510.\n[4]   Puchko
 va\, A.\; Vietz\, C.\; Pibiri\, E.\; Wünsch\, B.\; Sanz Paz\, M.\; Acuna\
 , G. P.\; Tinnefeld\, P. Nano Lett. 2015\, 15(12)\, 8354–8359.\n[5] 
   Hübner\, K.\; Pilo-Pais\, M.\; Selbach\, F.\; Liedl\, T.\; Tinnefeld\,
  P.\; Stefani\, D.\; Acuna\, G.P. Nano Lett. 2019 (under review).\n[6]
    Raab\, M.\; Vietz\, C.\; Stefani\, F. D.\; Acuna\, G. P.\; Tinnefeld\
 , P. Nat. Commun. 2017\, 8 (1)\, 13966.\n[7]   Kaminska\, I.\; Bohl
 en\, J.\; Rocchetti\, S.\; Selbach\, F.\; Acuna\, G. P.\; Tinnefeld\, P. 
 Nano Lett. 2019.\n[8]   Kaminska\, I.\; Bohlen\, J.\; Mackowski\, S.\; 
 Tinnefeld\, P.\; Acuna\, G. P. ACS Nano 2018\, 12 (2)\, 1650–1655.\n
 [9]   Pibiri\, E.\; Holzmeister\, P.\; Lalkens\, B.\; Acuna\, G. P.\; Ti
 nnefeld\, P. Nano Lett. 2014\, 14 (6)\, 3499–3503.\n 
LOCATION:CE 1 5
STATUS:CONFIRMED
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