Visible-to-visible four-photon ultrahigh resolution microscopic imaging with 730-nm diode laser excited nanocrystals.

@article{Wang2016VisibletovisibleFU,
  title={Visible-to-visible four-photon ultrahigh resolution microscopic imaging with 730-nm diode laser excited nanocrystals.},
  author={Baoju Wang and Qiuqiang Zhan and Yuxiang Zhao and Ruitao Wu and Jing Liu and Sailing He},
  journal={Optics express},
  year={2016},
  volume={24 2},
  pages={A302-11}
}
Further development of multiphoton microscopic imaging is confronted with a number of limitations, including high-cost, high complexity and relatively low spatial resolution due to the long excitation wavelength. To overcome these problems, for the first time, we propose visible-to-visible four-photon ultrahigh resolution microscopic imaging by using a common cost-effective 730-nm laser diode to excite the prepared Nd(3+)-sensitized upconversion nanoparticles (Nd(3+)-UCNPs). An ordinary… CONTINUE READING