@article {4900,
	title = {Pupil-segmentation-based adaptive optical correction of a high-numerical-aperture gradient refractive index lens for two-photon fluorescence endoscopy.},
	journal = {Optics Letters},
	volume = {37},
	year = {2012},
	month = {2012 Jun},
	pages = {2001-3},
	abstract = {<p>The intrinsic aberrations of high-NA gradient refractive index (GRIN) lenses limit their image quality as well as field of view. Here we used a pupil-segmentation-based adaptive optical approach to correct the inherent aberrations in a two-photon fluorescence endoscope utilizing a 0.8\&nbsp;NA GRIN lens. By correcting the field-dependent aberrations, we recovered diffraction-limited performance across a large imaging field. The consequent improvements in imaging signal and resolution allowed us to detect fine structures that were otherwise invisible inside mouse brain slices.</p>
},
	doi = {10.1364/OL.37.002001},
	url = {http://dx.doi.org/10.1364/OL.37.002001},
	author = {Wang, Chan and Ji, Na}
}
