Portable fluorescence sensors have been developed for biochemical detection, water
quality monitoring, biomedical sensing, and many other applications. With help of …

We discuss unique features of lens-free computational imaging tools and report some of
their emerging results for wide-field on-chip microscopy, such as the achievement of a …

Improving access to effective and affordable healthcare has long been a global endeavor. In
this quest, the development of cost-effective and easy-to-use medical testing equipment that …

Optical examination of microscale features in pathology slides is one of the gold standards
to diagnose disease. However, the use of conventional light microscopes is partially limited …

Malaria remains a major global health burden and new methods for low-cost, high-
sensitivity, diagnosis are essential, particularly in remote areas with low-resource around the …

Lensfree in-line holographic microscopy offers sub-micron resolution over a large field-of-
view (eg,~ 24 mm^ 2) with a cost-effective and compact design suitable for field use …

This Letter presents the τ interferometer, a portable and inexpensive device for obtaining
spatial interferograms of microscopic biological samples without the strict stability and the …

We present a simple-to-align, highly-portable interferometer, which is able to capture wide-
field, off-axis interference patterns from transparent samples under low-coherence …

In the past two decades or so, there has been a renaissance of optical microscopy research
and development. Much work has been done in an effort to improve the resolution and …

Fresnel Incoherent Correlation Holography (FINCH) enables holograms to be recorded from
incoherent light with just a digital camera and spatial light modulator. We previously …