High-resolution optical microscopy has traditionally relied on high-magnification and high–
numerical aperture objective lenses. In contrast, lensless microscopy can provide high …

Optical compound microscope has been a major tool in biomedical imaging for centuries. Its
performance relies on relatively complicated, bulky and expensive lenses and alignment …

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 …

Autofocusing is essential to digital holographic imaging. Previously used autofocusing
criteria exhibit challenges when applied to, eg, connected objects with different optical …

We demonstrate wide-field fluorescent and darkfield imaging on a cell-phone with compact,
light-weight and cost-effective optical components that are mechanically attached to the …

We demonstrate a successful deep learning strategy for cell identification and disease
diagnosis using spatio-temporal cell information recorded by a digital holographic …

Quantitative phase microscopy (QPM) has recently emerged as a new powerful quantitative
imaging technique well suited to noninvasively explore a transparent specimen with a …

We present a lens-free optical tomographic microscope, which enables imaging a large
volume of approximately 15 mm3 on a chip, with a spatial resolution of< 1 μm×< 1 μm×< 3 …

Abstract In 1948, Dennis Gabor proposed the concept of holography, providing a pioneering
solution to a quantitative description of the optical wavefront. After 75 years of development …

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 …