Ultrasensitive DNA quantification by light scattering

Traces of biomolecules such as DNA can be detected with a new "dynamic" technique based on the observation of association and dissociation events of gold nanoparticles. If the desired DNA sequence is present, it can reversibly ...

Seeing through materials with visible light

With yogurt and crushed glass, University of Michigan researchers have taken a step toward using visible light to image inside the body. Their method for focusing light through these materials is much faster and simpler than ...

Coherence of Raman light arises from disorder

Light propagation in disordered materials is a topic of great interest for the scientific community, with applications in the fields of photonics and renewable energies and the discovery of fascinating new phenomena related ...

Noise-canceling optics

Engineers at Caltech have created the visual analogue of noise-canceling headphones—a camera system that can obtain images of objects obscured by murky media, such as fog or clouds, by canceling out the glare.

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