Plasmonic-based nanogap structures play a key role in enhancing sensitivity in plasmonic applications. While nanogap width has often been shown to influence optical properties, controlling material composition at nanogap regions […]
Nanoparticle (NP) shape plays a key role in protein corona formation and targeted drug delivery. Although NP branch length can influence the composition of proteins that adsorb to NP, how […]
The combination of multiple periodic structures to create moiré patterns holds great potential for controlling and manipulating light. However, the effects and interactions associated with moiré patterns have been limited […]
Nanoparticle shape plays an important role in targeted drug delivery. Investigations of how differences in morphology affect nanoparticle-cell interactions at the single-particle level—especially internalization and cellular trafficking—are critical yet limited. […]
The tailored spatial polarization of coherent light beams is important for applications ranging from microscopy to biophysics to quantum optics. Miniaturized light sources are needed for integrated, on-chip photonic devices […]
Graphene exhibit unique electronic properties and mechanical flexibility that are beneficial for next-generation electronics. Crumpling graphene on elastomer sheets can engineer the properties depending on wavelength and orientation while maintaining […]
Continuous-wave (CW) lasing at room temperature is critical for integration with opto-electronic devices and optimal modulation of optical interactions. Plasmonic nanocavities integrated with gain can generate coherent light at sub-wavelength […]
Selectively functionalized graphene can realize spatially defined properties that are highly desirable for atom-thin devices. We developed a scalable approach to realize area-specific properties in graphene using multiscale wrinkles. Patterned […]
Metalenses are compact lensing components based on rationally designed nanoscale building blocks. These planar devices are crucial for miniaturized imaging systems that can be integrated into portable electronic and optical […]
We achieved mechanical control of the lasing color by exploiting a lasing cavity based on periodic arrays of nanoparticles in a stretchable, polymer matrix. This materials system could achieve reversibly […]