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Engineering Spontaneous Emission in a Quantum‐Dot‐Doped Polymer Nanocomposite with Three‐Dimensional Photonic Crystals
Author(s) -
Ventura Michael James,
Gu Min
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701703
Subject(s) - materials science , photonic crystal , optoelectronics , femtosecond , quantum dot , band gap , spontaneous emission , nanocomposite , amplified spontaneous emission , doping , laser , photonics , polymer , wavelength , nanocrystal , optics , nanotechnology , composite material , physics
The inhibition and enhancement phenomenon of spontaneous emission of PbSe QDs at the second‐order stop‐gap in a woodpile photonic crystal fabricated by the flexible direct femtosecond laser writing method is investigated. An inhibition of the emission is measured for wavelengths within the stop‐gap with a maxima reached at the center of the stop‐gap. At the high‐energy band edge of the stop‐gap, an enhancement of the spontaneous emission is observed.