| Literature DB >> 25084119 |
Ben E Urban1, Ji Yi1, Vladislav Yakovlev2, Hao F Zhang1.
Abstract
We investigated two-photon absorption-based photoacoustic generation and compared it with corresponding photoluminescence emission. Experimental results revealed expected quadratic dependences on the incident optical fluence in both photoacoustic and photoluminescence processes. We also investigated the influence of optical scattering on the generation of two-photon photoacoustic and photoluminescence signals and found that photoacoustic signals attenuated more slowly than photoluminescence signals when the optical scattering coefficient was increased, which was attributed to a weaker ultrasonic attenuation than that the optical attenuation in the scattering medium. Finally, we showed three-dimensional two-photon photoacoustic imaging.Mesh:
Year: 2014 PMID: 25084119 PMCID: PMC4118047 DOI: 10.1117/1.JBO.19.8.085001
Source DB: PubMed Journal: J Biomed Opt ISSN: 1083-3668 Impact factor: 3.170