Recovering molecular information remains a grand challenge in the widely used
holographic and computational imaging technologies. To address this challenge, we …

Amyloid proteins are associated with a broad spectrum of neurodegenerative diseases.
However, it remains a grand challenge to extract molecular structure information from …

Infrared photothermal heterodyne imaging (IR-PHI) is an all-optical table top approach that
enables super-resolution mid-infrared microscopy and spectroscopy. The underlying …

Chemical contrast has long been sought for label-free visualization of biomolecules and
materials in complex living systems. Although infrared spectroscopic imaging has come a …

Chemical imaging, especially mid-infrared spectroscopic microscopy, enables label-free
biomedical analyses while achieving expansive molecular sensitivity. However, its slow …

We demonstrate a label-free, scan-free intensity diffraction tomography technique utilizing
annular illumination (aIDT) to rapidly characterize large-volume three-dimensional (3-D) …

We demonstrate a motion-free intensity diffraction tomography technique that enables the
direct inversion of 3D phase and absorption from intensity-only measurements for weakly …

Infrared (IR) imaging has become a viable tool for visualizing various chemical bonds in a
specimen. The performance, however, is limited in terms of spatial resolution and imaging …

We propose label-free and motion-free resolution-enhanced intensity diffraction tomography
(reIDT) recovering the 3D complex refractive index distribution of an object. By combining an …

Photothermal microscopy has enabled highly sensitive label-free imaging of absorbers, from
metallic nanoparticles to chemical bonds. Photothermal signals are conventionally detected …