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Screenless displays that provide 3-D images viewable from all directions continue to undergo development on multiple fronts. But can they find a market?...

Using a new step-by-step method developed by Aaron Bauer, a senior research engineer at the University of Rochester's Center for Freeform Optics (CeFO), these eight different designs for a three-mirror reflective imager were ranked by their potential to be corrected...

A new end-fire injection technique uses a waveguide (W) that is directly connected to the edge of the microdisk. A phenomenon known as laser time-reversal creates a laser that absorbs light rather than emits it, allowing the light to efficiently...

The surface of the chip traps light at the edges of the Ag and Au nanoparticles. When biological or chemical molecules fall into the tiny spaces between the nanoparticles on the chip’s surface, some of the captured light interacts with...

A one-inch diameter Bragg polarization grating diffracts white light from an LED flashlight onto a screen placed nearby. Even though the difference between the light’s input and output direction is very large, the grating is highly efficient for a wide...

Light has bidirectional transmission reciprocity in common dielectric materials. Breaking this reciprocity in the direction of light transmission is of great significance in classical and quantum information processing....

The resolution of the microscope allows subcellular details to be obtained, such as the dynamics of miniscule bubbles known as vesicles, which transport molecular cargo through to the cell....

This system can control the transcription of genes within the body with high precision—it can dictate how, when, and where genes create proteins that perform various cellular functions. CaRROT uses a pulse of light or chemicals that can induce the...

Using graphene, researchers have found a way to confine light down to a space that is one atom thick. The ability to confine light to such a small space could pave the way for ultrasmall optoelectronic devices. Previous work has...

Inside an infrared frequency comb in a quantum cascade laser, the different frequencies of light beat together to generate microwave radiation....