optics

An ablation catheter incorporating near-infrared spectroscopy mapping can successfully distinguish various tissue types in hearts donated from patients with cardiovascular disease

Depth thermography goes beyond the surface and works with a certain class of materials that are partially transparent to infrared radiation

Unlike other materials that try to emulate nature's color changers, this one can respond to any type of movement, like bending or twisting

Finding enables researchers to directly visualize unlabeled objects that have deep sub-wavelength separations

Device may have far-reaching applications in polarization imaging, quantum optics, and more

Perovskite crystals could underpin cheap renewable energy

Penn engineers develop first tunable, chip-based 'vortex microlaser' and detector

To date, no methods of optical imaging can observe atomic nuclei, because it is extremely challenging to image such tiny entities surrounded by electrons

New system offers new possibilities for live-cell analysis experiments

An open-source design from the University of Bath gives schools, homes, and labs the chance to 3D print their own precision microscopes