NANOPHOTONICS group

Research Directions
  • Optical micro-spectroscopy of nanostructures
  • Scanning probe imaging in combination with optical measurements
  • Single-nanocrystals, single-molecules and other individual nano-objects spectroscopy
  • Nanoparticles for application in biology and medicine
  • Fabrication of semiconductor nanocrystals
  • Nanocrystals embedded in photonic microstructures  (microresonators, waveguides, photonic band-gap crystals etc.)
  • Light-emitting devices  from Si nanocrystals
  Experimental Methods
  •  Micro-photoluminescence (PL) and electroluminescence
  •  Atomic Force Microscopy (c-AFM, liquid / bio AFM etc.)
  •   Low-temperature luminescence spectroscopy
  •  Absolute quantum yield measurements
  •  Spectroscopy of single nano-objects 
  •  Optical amplification measurements (VSL and SES methods)
  •  Pump-and-Probe optical experiments
  •  Spectral hole-burning and hole-filling
  • and more ... 
 

V4+J project kick-off meetings: (From left to right) Rene Derian (Slovakia), Jan Valenta (Czechia),
Minoru Fujii (Japan), Adam Gali (Hungary), Robert Mroczynski 


Research Projects
    Current Projects
  • 2015-2018 – Visegrad Group + Japan Joint Research Project on Advanced Materials  “NaMSeN - Nanophotonics with Metal - Group-IV Semionductor Nanocomposites: From Single Nanoobjects to Functional Ensembles”  (web site)
  • 2016-2018 – bilateral Czech-German project  “Understanding the luminescence efficiency of silicon quantum dots”  [in collaboration with Prof. M. Zacharias group, IMTEK, U. Freiburg]
  • 2016-2018 – "Fluoride nanostructural thin films with outsdanding optical and luminescence properties" – grant of the Grant Agency of the Czech Republic [in collaboration with J. Lancok group at Inst. Physics, Academy of Sciences CR, Prague]

    Some Past Projects  

  • 2014-2016  – “Doped silicon nanocrystals - novel nanomaterials for photonics and bio-applications” – bilateral Czech-Japan project granted by the Czech Ministry of Education, Youth and Sports  [together with Prof. M. Fujii group, Kobe University]
  • 2010-2013  – “NASCEnT - Silicon Nanodots for Solar Cell Tandem” – EU 7FP Project granted by EC.
  • 2005-2011  – “Research centre for Nanotechnology and Materials for Nanoelectronics” – Project LC510 granted by the Czech Ministry of Education, Youth and Sports 
  • 2007-2011  – “FUNS - Functional hybrid nanosystems of semiconductors and metals with organic materials” – KAN400100701 Programme "Nanotechnology for Society" Grant Agency of the Czech Academy of Sciences (project directed by Dr. B. Rezek, Inst. Physics CAS, Prague)
  • 2007-2009  – “Silicon nanophotonics - From single nanocrystals to photonic structures” – grant of the Grant Agency of the Czech Republic No. 202/07/0818
  • 2003-2007 – “Micro- and nano-crystalline semiconductors for photonics” – grant of the Grant Agency of the Czech Academy of Sciences (project directed by Prof. Pelant, Inst. of Physics CAS, Prague)
  • 2003-2005  – “Silicon photonic devices”  Australian Research Council discovery project DP0343308 (project directed by Prof. Elliman, ANU Canberra)
  • 2003-2005  – “Novel silicon nanomaterials for optoelectronics” – grant of the Grant Agency of the Czech Republic No. 202-03-0789
  • 2002-2003  – “Silicon nanostructures: Single-dot spectroscopy and search for optical gain”  Joint research project granted by the Royal Swedish Academy of Sciences (project directed by Prof. Linnros, IMIT-KTH Stockholm)  
  • 1998-2000  – “Nanostructured semiconductor materials” – grant of the Grant Agency of the Czech Republic No. 202-98-0669 
  • 1998-1999 – “Investigation of Carrier Dynamics in Silicon Nanocrystallite Structures” - NATO linkage grant (Strasbourg – Vilnius - Prague)
  • 1999-2001 – “Non-linear optical properties of semiconductor nanocrystals” – grant of the Grant Agency of the Czech Academy of Sciences 
rotating nanocrystal

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Designed by J. Valenta, 1999-2016