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 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots. / Ben-Haim, Nir R.; Oron, Dan.
In: Optics Letters, Vol. 33, No. 18, 15.09.2008, p. 2089-2091.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots
AU - Ben-Haim, Nir R.
AU - Oron, Dan
PY - 2008/9/15
Y1 - 2008/9/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=54749144650&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=54749144650&partnerID=8YFLogxK
U2 - 10.1364/OL.33.002089
DO - 10.1364/OL.33.002089
M3 - Article
C2 - 18794940
AN - SCOPUS:54749144650
VL - 33
SP - 2089
EP - 2091
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 18
ER -