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Optics of Nanostructures: Science, Technology, Applications Sergey V. Gaponenko

Optics of Nanostructures: Science, Technology, Applications Sergey V. Gaponenko. Institute of Molecular and Atomic Physics National Academy of Sciencs of Belarus. Institute of Molecular and Atomic Physics. Established in 1992 (separated from th e Inst. Physics)

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Optics of Nanostructures: Science, Technology, Applications Sergey V. Gaponenko

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  1. Optics of Nanostructures:Science, Technology, ApplicationsSergey V. Gaponenko Institute of Molecular and Atomic PhysicsNational Academy of Sciencs of Belarus

  2. Institute of Molecular and Atomic Physics Established in 1992 (separated from the Inst. Physics) Staff: 160 total (30 Dr. of Sci, 70 Ph.D) Research topics: • Plasma physics and atomic spectroscopy • Molecular spectroscopy • Photobiophysics • Physics of nanostructures 12 research laboratories Journal of Applied Spectroscopy publisher (since 1964)

  3. Basic Principles • Photonic crystal ideology • Quantum size effects in semiconductor nanocrystals • Surface enhanced optical processes

  4. Photonic crystals

  5. Nanoporous alumina developed at BSUIR

  6. Anisotropic light scattering in nanoporous materialsLutich, Gaponenko, Gaponenko, Sokol, APL, 2003 in press

  7. Quantum size effects in semiconductor nanocrystals

  8. Light convertor for Si photodetectorsMain advantage versus organic luminophores:high photostability

  9. Principal publications A. Kapitonov, A. Stupak, E. Petrov, S. Gaponenko, A.Rogach, A. Eychmueller. Photoluminescence of CdTe nanocrystals in aqueous solution. J. Phys. Chem. 103, 10109 (1999). M.Artemyev, A.Bibik, L.Gurinovich, S.Gaponenko, U.Woggon. Evolution from individual to collective electron states in a quantum dot ensemble. Phys. Rev. B 60,1504-1506 (1999) M. Artemyev, L. Gurinovich, A. Stupak, S. Gaponenko. Luminescence of CdS Nanoparticles Doped with Mn. Phys. stat. sol. (b) 224, 191 (2001)

  10. Surface enhanced optical processes Enhanced Raman scattering Enhanced Photoluminescence

  11. Malashkevich et al, in press

  12. High-sensitive SERS molecular analysysGaponenko, Gaiduk, Kulakovich et al. JETP Lett. 2001,74,324.

  13. Basic Technologies • Electrochemical etching • Colloidal chemistry • Sol-gel processes • High-energy plasma flow processes

  14. Nanoporous aluminaBSUIR

  15. CdSe nanocrystals СdTenanocrystals Gaponenko et al. Gaponenko et al. J. Appl. Phys. 1995, JETP lett. 1998 In cooperation with Belarussian Sate University

  16. Colloidal crystalsPetrov, Bogomolov, Kalosha, Gaponenko, PRL 1998cooperation with Russian Academy of Sciencesand Inst. Powder Metallurgy

  17. Metal colloids

  18. High-energy plasma flow processes • discharge duration — 100  150 sec; • peak current — 50  120 kA; • plasma velocity — (3  7)x106 cm/sec; • electron density — 1016 1018 cm-3; • plasma temperature — 2  4 eV

  19. Regular surface structures formed on silicon wafer

  20. Tasks • Novel luminophores and efficient light emitting devices • Spectral transformers for silicon solar cells and photodetectors • Ultrasensitive chemical analysis • Si surface processing

  21. Optical data coding and security systems

  22. Spectral portraits of numbers

  23. Current projects • National program “Electronics” • National program “Nanotechnologies” • National program “Plasma dynamics” • National Basic Res. Fnd. Projects (5) • International INTAS projects (2 projects) • NATO for Peace project • Int. Sci. Techn. Center project • Volkswagen Shiftung project • Cooperaton agreement with Swiss Sherer Institute • European network of excellence “Nanophotonics”

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