Metamaterial significantly enhances chiral nanoparticle signals

The left hand looks like the right hand in the mirror but the left-handed glove does not fit on the right hand. Chirality refers to this property where the object cannot be superimposed on to the mirror image. This property ...

Evanescent scattering microscopy: A sharper image for proteins

Proteins may be the most important and varied biomolecules within living systems. These strings of amino acids, assuming complex 3-dimensional forms, are essential for the growth and maintenance of tissue, the initiation ...

Researchers detect coronavirus particles with 'slow light'

Despite all the bad news the COVID-19 pandemic brought upon the world, it has helped us gain a better perspective of our readiness to fend off highly contagious diseases. Rapid diagnostic test kits and PCR testing quickly ...

Tuning transparency and opacity

Making a dark human hair transparent, or even an opaque bar of silicon: this optical "sorcery" is possible by manipulating the incident light. This new phenomenon is called "mutual extinction and transparency." Until now ...

Ultrafast electron dynamics in space and time

Often depicted as colorful balloons or clouds, electron orbitals provide information on the whereabouts of electrons in molecules, a bit like fuzzy snapshots. In order to understand the exchange of electrons in chemical reactions, ...

Natural three-dimensional nonlinear photonic crystal

Nonlinear photonic crystals (NPCs) are transparent materials that have a spatially uniform linear susceptibility, yet a periodically modulated quadratic nonlinear susceptibility. These engineered materials are used extensively ...

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