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Delve into the intersection of physics, optics, and nanotechnology with a focus on light-related phenomena in nature. Explore how tiny structures in butterflies inspire advancements in photonics and nanoscience, and uncover the intricate use of gold nanoparticles for color manipulation. Witness the application of surface plasmon technology in cancer therapy and microscopy, highlighting the groundbreaking research shaping a brighter, colorful future. Discover a captivating blend of science and art through historical glass artifacts and modern-day scientific innovations.
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BRIGHT „NEW” WORLD Norbert Kroo Wigner Physics Research Center of the Hungarian Academy of Sciences Budapest, 2015.10.12
1815 INTERFERENCE Fresnel Lightsource
HOLOGRAPHY Denis Gabor BUT STILL DIFFRACTION LIMIT!
NANOTECHNOLOGY IN NATURE PHOTONIC CRYSTAL LIKE STRUCTURES IN BUTTERFLIES
2010ths ATTOSECOND
Technologies and thewavelength of light Toproducemicro-patternswithphotographicalmethodssmalldiameterlightbeamsareneeded: eitherbyfocusingthebeamby a lensor bymaskswithsmallholees Butlightbeamswithdiameter < l of thelightcannot be created E.g. wavesonwatersurface and a slit Sltsize < wavelength of waves: no crossing SIZE!
“Labors of the Months” (Norwich, England, ca. 1480).(the rubycolour is probablyduetogoldnanoparticles mixed intotheglas.)
The Lycurgus Cup (glass; British Museum; 4thCentury A. D.) When illuminated from outside, it appears green. However, when illuminated from within the cup, it glows red. Red color is due to very small amounts of gold powder (about 40 parts per million) in glass.
Nanotechnology and colours Bulk Gold mp = 1064° C Color = gold 1 nm gold particles mp = 700 °C max = 420 nm Color = brown-yellow 20 nm gold particles mp = ~1000 °C max = 521 nm Color = red 100 nm gold particles mp = ~1000 °C max = 575 nm Color = purple-pink
100x100nm 45nm gold film Topography and SPO nearfield STM image Plasmonic near field image with nm resolution and field enhancement
5 SURFACE PLASMON ENERGY „GAP”
Metal tip Nanoparticle Enhanced Local Optical Fields Nanoscale Scattered Light, SERS THE USE OF ENHANCED LOCAL FIELDS FOR NANO-MICROSCOPY
e2 e3 e1 r1 r2 1.24 electron volts 0.124 10,000 cm-1 1,000 300 THz 30 Spektraltuning range nanoshell plasmon resonance 1000 100 Core/Shell Ratio r1/(r2-r1) 10 1 0 2 4 6 8 10 Wavelength (microns)
THE WIDTH AT 1/e HEIGHT OF THE STM SIGNAL Electron pairing TOTAL INTENSITY OF ELECTRONS IN THE HIGHER ENERGY PEAK OF THE ELECTRON SPECTRUM Additional proof of electron pairing 3!
PHYSICS PHYSICS BELONGS TO EVERYBODY LIGHT CAROUSSEL BUDAPEST-A CITY OF LIGHT MULTICOLOURED PHYSICS ATOMCHILL CONFERENCES WORLD SCIENCE FORUM
CHEMISTRY BRIGHT CHEMISTRY LECTURES SUMMER CAMP GENERAL CONFERENCE OF THE CHEMICAL SOCIETY STUDENT COMPETITION
ASTRONOMY PARTIAL SOLAR ECLIPSE SUMMER CAMP FOR HIGH SCHOOL STUDENTS TELESCOPIC OBSERVATIONS PHOTOCOMPETITION POPULAR LECTURES
BIOLOGY-MEDICINE FEMTOLASER OPHTALMOLOGY PHOTOGENOMICS PHOTOSYNTHESIS CONFERENCE LIGHT IN PLANT BIOLOGY
ENGINEERING and GENERAL ILLUMINATION EXPERIMENTS REGIONAL AND LOCAL (STUDENT) PROGRAMMES COMPANIES FOR TALENTS (BAYER) POPULAR JOURNALS (TERMÉSZET VILÁGA, ÉLET ÉS TUDOMÁNY) LIGHT DAY IN PARIS
ART GEORGE KEPES CENTER ATTILA CSÁJI EXHIBITION PHOTO, MUSIC, LITERATURE SCIENTIFIC PHOTO COMPETITION
KEZDETBEN TEREMTETTE ISTEN A MENNYET ÉS A FÖLDET. A FÖLD MÉG KIETLEN ÉS PUSZTA VOLT, A MÉLYSÉG FELETT SÖTÉTSÉG VOLT, DE ISTEN LELKE LEBEGETT A VIZEK FÖLÖTT. AKKOR EZT MONDTA ISTEN: . E = 4πρ xE= - . B = 0 xB =J + ÉS LETT VILÁGOSSÁG Legyen világosság = Maxwell egyenletek
A FÉNY ÉS ALKALMAZÁSAI (optikai eszközök) TÜKRÖK LENCSÉK ÜVEGSZÁLAK PRIZMÁK MIKROSZKÓPOK TELESZKÓPOK LÉZEREK
Van Eyck: Az Arnolfini esküvő Tükör a háttérben
INTERFERENCIA Fényforrás
(TILTOTT) SÁV SZERKEZET Első Brillouin zóna Csoportsebesség Módussűrűség Fényvonal v=/K Diszperziós összefüggés