Loss Processes in Perovskite Solar Cells

Emitted photons were precisely recorded and analyzed using a hyperspectral CCD camera

Reconstructing Images in a Multimode Fiber

Deep neural network recognizes images from the pattern of speckles transmitted to the far end of a fiber

Nano-Endoscope with Metalenses

Nano-optic device for high-resolution optical coherence tomography in vivo

Better Micropatterning for OLEDs

New method might eliminate the use of color filters and shadow masks in the future

Metalattice with Strong Toroidal Dipole Response

The unit cell consists of four rectangular bars made of dielectric materials of moderate contrast

Optical Filter on a Chip

Filters with cutoffs around 1550 and 2100 nm are fabricated on a silicon-on-insulator platform

Trapping Light with Metamaterials

A new protective metamaterial cladding prevents light from leaking out of curvy pathways

Feeling with Optical Fibers

Echo of a hyper-frequency wave in a fiber varies at different locations depending on the material

Steering Light with Dynamic Lenses

New class of flat optical devices by the combination of metasurfaces and MEMS

New Metamaterial for Solar Cells

Dielectric metamaterials do not heat under exposure to electromagnetic radiation