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Researchers adopt metalens technology in a new endoscopic optical imaging catheter to better detect disease, including cancer. ...

3D glass molds integrate the advantages of high-resolution prototyping with the ease of production and replication offered by soft lithography....

Excitons—electron-hole pairs (red and blue balls)—act as carriers, controlled by laser light and by voltage biases applied at graphene electrodes....

The sensor is based on a crystal that is permeable to IR light. The protein is bound on its surface....

New material reversibly changes its structure in response to different wavelengths of light....

Researchers have shown a neural network can be trained using an optical circuit. In the full network there would be several of these linked together. The laser inputs encode information that is carried through the chip by optical waveguides....

Purdue researchers have taken 3D single molecule superresolution images of the amyloid plaques associated with Alzheimer's disease in 30-µm-thick sections of the mouse's frontal cortex....

A multidisciplinary team has developed a high-tech fix that utilizes metal nanostructures to increase the fluorescence intensity by up to 100× in medical diagnostic tests....

This new wedge reversal shearing interferometer has the added advantage of being able to measure the beam front information or wave front of powerful, superfast pulsed laser beams....

Folding and cutting thin metal films could enable microchip-based 3-D optical devices....