13 August 2015 Increasing depth penetration in biological tissue imaging using 808-nm excited Nd3+/Yb3+/Er3+-doped upconverting nanoparticles
Author Affiliations +
Abstract
Ytterbium (Yb3+)-sensitized upconverting nanoparticles (UCNPs) are excited at 975 nm causing relatively high absorption in tissue. A new type of UCNPs with neodymium (Nd3+) and Yb3+ codoping is excitable at a 808-nm wavelength. At this wavelength, the tissue absorption is lower. Here we quantify, both experimentally and theoretically, to what extent Nd3+-doped UCNPs will provide an increased signal at larger depths in tissue compared to conventional 975-nm excited UCNPs.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hugo Söderlund, Monirehalsadat Mousavi, Haichun Liu, Stefan Andersson-Engels, "Increasing depth penetration in biological tissue imaging using 808-nm excited Nd3+/Yb3+/Er3+-doped upconverting nanoparticles," Journal of Biomedical Optics 20(8), 086008 (13 August 2015). https://doi.org/10.1117/1.JBO.20.8.086008 . Submission:
JOURNAL ARTICLE
7 PAGES


SHARE
Back to Top