Lensless holographic microscopy shows high potential to be a practical point of care diagnostic tool due to its unique features like compactness, simple prototype, portability and on-chip operation. In the present work, a deep violet (370nm, 10 nm FWHM) LED at low power is used as a low coherent light source for lensless 3-D holographic imaging of live cells and microparticles. An on-chip Fresnel hologram of the sample is recorded in on-axis geometry on a high resolution CMOS camera and 3-D phase reconstruction has been performed eliminating the twin images using an optimization approach.

© 2018 The Author(s)

PDF Article
This paper was not presented at the conference


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription