Lensfree on-chip imaging using nanostructured surfaces

Bahar Khademhosseinieh, Ikbal Sencan, Gabriel Biener, Ting Wei Su, Ahmet F. Coskun, Derek Tseng, Aydogan Ozcan

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We introduce the use of nanostructured surfaces for lensfree on-chip microscopy. In this incoherent on-chip imaging modality, the object of interest is directly positioned onto a nanostructured thin metallic film, where the emitted light from the object plane, after being modulated by the nanostructures, diffracts over a short distance to be sampled by a detector-array without the use of any lenses. The detected far-field diffraction pattern then permits rapid reconstruction of the object distribution on the chip at the subpixel level using a compressive sampling algorithm. This imaging modality based on nanostructured substrates could especially be useful to create lensfree fluorescent microscopes on a compact chip.

Original languageEnglish
Article number171106
JournalApplied Physics Letters
Volume96
Issue number17
DOIs
StatePublished - Apr 26 2010

Fingerprint

Dive into the research topics of 'Lensfree on-chip imaging using nanostructured surfaces'. Together they form a unique fingerprint.

Cite this