Display Settings:

Format

Send to:

Choose Destination
Opt Express. 2010 May 10;18(10):10510-23. doi: 10.1364/OE.18.010510.

Lensless wide-field fluorescent imaging on a chip using compressive decoding of sparse objects.

Author information

  • 1Electrical Engineering Department, University of California, Los Angeles, CA, USA.

Abstract

We demonstrate the use of a compressive sampling algorithm for on-chip fluorescent imaging of sparse objects over an ultra-large field-of-view (>8 cm(2)) without the need for any lenses or mechanical scanning. In this lensfree imaging technique, fluorescent samples placed on a chip are excited through a prism interface, where the pump light is filtered out by total internal reflection after exciting the entire sample volume. The emitted fluorescent light from the specimen is collected through an on-chip fiber-optic faceplate and is delivered to a wide field-of-view opto-electronic sensor array for lensless recording of fluorescent spots corresponding to the samples. A compressive sampling based optimization algorithm is then used to rapidly reconstruct the sparse distribution of fluorescent sources to achieve approximately 10 microm spatial resolution over the entire active region of the sensor-array, i.e., over an imaging field-of-view of >8 cm(2). Such a wide-field lensless fluorescent imaging platform could especially be significant for high-throughput imaging cytometry, rare cell analysis, as well as for micro-array research.

(c) 2010 Optical Society of America.

PMID:
20588904
[PubMed - indexed for MEDLINE]
PMCID:
PMC2898750
Free PMC Article

Images from this publication.See all images (8)Free text

Fig. 1
Fig. 2
Fig. 8
Fig. 7
Fig. 3
Fig. 4
Fig. 5
Fig. 6
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America Icon for PubMed Central
    Loading ...
    Write to the Help Desk