Detection of fluorescent nanoparticles in flame with femtosecond laser-induced fluorescence anisotropy
(2008) In Optics Express 16(8). p.5623-5632- Abstract
- The mean size of fluorescent nanoparticles produced in a propane flame has been measured with an in-situ technique employing a femtosecond laser to excite the sample and a streak camera for time-resolved detection of the fluorescence. The time profile of the fluorescence anisotropy showed a Gaussian behaviour, typical of free rotor reorientation. By measuring its width, we estimated an average carbon particle diameter of 3.3 nm, thus confirming the existence of combustion produced nanoparticles. The technique proves to be applicable to the study of gas-phase nanoparticles, both in combustion and environmental studies.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1206221
- author
- Bruno, Annalisa ; Ossler, Frederik LU ; de Lisio, Corrado ; Minutolo, Patrizia ; Spinelli, Nicola and D'Alessio, Antonio
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 16
- issue
- 8
- pages
- 5623 - 5632
- publisher
- Optical Society of America
- external identifiers
-
- wos:000255120300051
- scopus:42149163479
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.16.005623
- language
- English
- LU publication?
- yes
- id
- 757d014d-7581-452b-894e-bf512bcd4ca0 (old id 1206221)
- date added to LUP
- 2016-04-01 13:19:55
- date last changed
- 2022-01-27 18:35:29
@article{757d014d-7581-452b-894e-bf512bcd4ca0, abstract = {{The mean size of fluorescent nanoparticles produced in a propane flame has been measured with an in-situ technique employing a femtosecond laser to excite the sample and a streak camera for time-resolved detection of the fluorescence. The time profile of the fluorescence anisotropy showed a Gaussian behaviour, typical of free rotor reorientation. By measuring its width, we estimated an average carbon particle diameter of 3.3 nm, thus confirming the existence of combustion produced nanoparticles. The technique proves to be applicable to the study of gas-phase nanoparticles, both in combustion and environmental studies.}}, author = {{Bruno, Annalisa and Ossler, Frederik and de Lisio, Corrado and Minutolo, Patrizia and Spinelli, Nicola and D'Alessio, Antonio}}, issn = {{1094-4087}}, language = {{eng}}, number = {{8}}, pages = {{5623--5632}}, publisher = {{Optical Society of America}}, series = {{Optics Express}}, title = {{Detection of fluorescent nanoparticles in flame with femtosecond laser-induced fluorescence anisotropy}}, url = {{http://dx.doi.org/10.1364/OE.16.005623}}, doi = {{10.1364/OE.16.005623}}, volume = {{16}}, year = {{2008}}, }