4.8 Article

Strongly Modified Spontaneous Emission Rates in Diamond-Structured Photonic Crystals

Journal

PHYSICAL REVIEW LETTERS
Volume 107, Issue 14, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.143902

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Funding

  1. National Science Foundation [ECS-0609244, DMR-1005382]
  2. DuPont Young Professor Grant
  3. University of Utah
  4. Division Of Materials Research
  5. Direct For Mathematical & Physical Scien [1005382] Funding Source: National Science Foundation

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The spontaneous emission decay dynamics of nanocrystal quantum dots embedded into biotemplated titania photonic crystals with a diamond-based lattice are investigated. Modification of the decay rate of quantum dot emission over wide frequency bandwidths in the visible by the photonic crystals is observed. Frequency-dependent analysis reveals both inhibition and enhancement of emission with a radiative lifetime variation by more than a factor of 10.

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