Impurity do** is a promising method to impart new properties to various materials. Due to
their unique optical, magnetic, and electrical properties, rare-earth ions have been …

Infrared (IR) adaptation phenomena are ubiquitous in nature and biological systems. Taking
inspiration from natural creatures, researchers have devoted extensive efforts for develo** …

Optogenetics has revolutionized the experimental interrogation of neural circuits and holds
promise for the treatment of neurological disorders. It is limited, however, because visible …

Rare-earth (RE) doped nanoparticles show unique features of photon conversion from an
incident wavelength to a more suitable wavelength at an intended biological site, thus …

Efficient photon upconversion at low light intensities promises major advances in
technologies spanning solar energy harvesting to deep-tissue biophotonics. Here, we …

Lanthanide-doped upconversion nanoparticles enable anti-Stokes emission via nonlinear
processes, where low-energy excitation photons in the near-infrared window can be …

Light-based neuromodulation systems offer exceptional spatiotemporal resolution combined
with the elimination of physical tether to communicate with neurons. Currently, optical …

Al-Li alloys printed by laser powder bed fusion (LPBF) have huge potential for industrial
application due to their remarkable advantages. However, the high hot cracking …

Upconversion nanoparticles (UCNPs) doped with lanthanides can convert near-infrared
excitation into UV and visible emissions. Because of their relatively high emission efficiency …

The last decade has seen dramatic progress in the principle, design, and fabrication of
photonic nanomaterials with various optical properties and functionalities. Light‐emitting …