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Linje 1: [[Image:Supercontinuum in a microstructured optical fiber.PNG\|thumb\|350px\|Fotografi af et fotonisk fiber som pga. ulinearitet ændrer lysets bølgelængde ned langs fiberen.<ref>[http://www.sciencedaily.com/releases/2004/05/040521071505.htm 2004-05-24, Sciencedaily: Tightly Focused Laser Light Generates Nonlinear Effects And Rainbow Of Color] Citat: "..."supercontinuum generation in nonlinear fibers." The phenomenon can be observed in a new class of optical fibers, called photonic crystal fibers. PCFs consist of a tiny solid glass core surrounded by a cladding, or casing, that contains air holes along the length of the fiber...As the IR light propagates, or spreads, through a 1-meter-long fiber, the light appears, first orange, then yellow and finally green...The visible lightwaves emerge from the fiber as white light, which contains all the colors of the spectrum..."</ref>]]▼ '''Fotoniske krystaller''' er periodiske [[dielektrisk]]e eller metal-dielektriske (nano)strukturer som er designet til at påvirke [[Elektromagnetisk bølge\|elektromagnetiske bølger]]s (EM) udbredelse på den samme måde som det periodiske potential i et [[halvleder\|halvledende krystal]] påvirker [[elektron]]ernes bevægelse ved at definere tilladte og forbudte elektriske energibånd. Line 4 ⟶ 5: Fotonisk krystal er grundlæggende set baseret på det fysiske fænomen [[diffraktion]]. ==Kilder/referencer== <References/> ==Se også== Line 20 ⟶ 24: [http://www.cerncourier.com/main/article/44/1/15 CERN Courier: Photonic crystal makes flat lens] Citat: "...The key to creating the flat lens lies with the recent advent of materials - photonic crystals - that effectively have a negative index of refraction...the principle could herald a revolution in optics..." [http://news.bbc.co.uk/1/hi/sci/tech/1099278.stm BBC News: 3 January, 2001, Sea mouse promises bright future] Citat: "...The sea mouse, or Aphrodita, has spines that normally appear deep red in colour. But when light falls on a spine perpendicular to its axis, stripes of different colours appear - strong blues and greens..."The simple structure responsible for this effect is a remarkable example of photonic engineering by a living organism."..."These structures may have application in photonic communications, where there is much interest in fabricating photonic crystal fibres with similar morphology."..." ▲[http://www.sciencedaily.com/releases/2004/05/040521071505.htm 2004-05-24, Sciencedaily: Tightly Focused Laser Light Generates Nonlinear Effects And Rainbow Of Color] Citat: "..."supercontinuum generation in nonlinear fibers." The phenomenon can be observed in a new class of optical fibers, called photonic crystal fibers. PCFs consist of a tiny solid glass core surrounded by a cladding, or casing, that contains air holes along the length of the fiber...As the IR light propagates, or spreads, through a 1-meter-long fiber, the light appears, first orange, then yellow and finally green...The visible lightwaves emerge from the fiber as white light, which contains all the colors of the spectrum..." [[Kategori:Kvantemekanik]]

Fotonisk krystal: Forskelle mellem versioner