Abstract
We characterize the spontaneous emission of dye that is introduced into the central core of a tapered photonic crystal fiber. Since the photonic crystal period in the fibre cladding varies along the taper, the transmission and spontaneous emission spectra over a wide range of relative frequencies can be observed. The spontaneous emission spectra of the fibre transverse to the fiber axis show suppression due to partial band-gaps of the structure, and also enhancement of spontaneous emission near the band edges. We associate these with van Hove features, as well as finite cluster size effects.
Original language | English |
---|---|
Pages (from-to) | 12439-12444 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 14 |
Issue number | 25 |
DOIs | |
Publication status | Published - 11 Dec 2006 |