Abstract
We investigate two-photon excited fluorescence from CdSe quantum dots with a center-emitting wavelength of 655 nm on SiN photonic crystals. We find that two-photon excited fluorescence is enhanced by more than 1 order of magnitude in the vertical direction when a photonic crystal is used compared to the fluorescence spectra in the absence of photonic crystals. The spectrum of two-photon excited fluorescence from quantum dots on SiN photonic crystal is observed to shift to blue compared to that from quantum dots on SiN without photonic crystals.
| Original language | English |
|---|---|
| Pages (from-to) | 309-311 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 35 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Feb 1 2010 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics