Abstract
Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 106 W/cm2. The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states.
| Original language | English |
|---|---|
| Pages (from-to) | 2089-2091 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 33 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - Sep 15 2008 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Ben-Haim, N. R., & Oron, D. (2008). Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots. Optics Letters, 33(18), 2089-2091. https://doi.org/10.1364/OL.33.002089