Recent advances in high-contrast metastructures, metasurfaces, and photonic crystals
In the past decade, the research field that uses arrays of high-index-contrast near-
wavelength dielectric structures on flat surfaces, known as high-contrast metastructures …
wavelength dielectric structures on flat surfaces, known as high-contrast metastructures …
Nonlinear optics in dielectric guided-mode resonant structures and resonant metasurfaces
Nonlinear optics is an important area of photonics research for realizing active optical
functionalities such as light emission, frequency conversion, and ultrafast optical switching …
functionalities such as light emission, frequency conversion, and ultrafast optical switching …
Parity-time symmetry in coherently coupled vertical cavity laser arrays
We report parity-time (PT) symmetry breaking in electrically injected, coherently coupled,
vertical cavity surface emitting laser arrays. We predict beam steering, mode evolution, and …
vertical cavity surface emitting laser arrays. We predict beam steering, mode evolution, and …
Applied electromagnetic optics simulations for nanophotonics
Nanophotonics—the science and technology of confining, guiding, and making photons
interact with matter at the nanoscale—is an active research field. By varying the geometry …
interact with matter at the nanoscale—is an active research field. By varying the geometry …
An optimized self-adaptive thermal radiation turn-down coating with vanadium dioxide nanowire array
Insulator-to-metal temperature phase transition Vanadium Dioxide (VO 2) can enable
radiative property switching in the mid-to far-infrared wavelengths. With computational …
radiative property switching in the mid-to far-infrared wavelengths. With computational …
Widely tunable 1060-nm VCSEL with high-contrast grating mirror
We report tunable VCSELs emitting around 1060 nm, enabled by high-contrast grating
(HCG) mirror. Single-mode continuous-wave (CW) operation up to 110° C is demonstrated …
(HCG) mirror. Single-mode continuous-wave (CW) operation up to 110° C is demonstrated …
MEMS-tunable VCSELs using 2D high-contrast gratings
We demonstrate the room-temperature operation of a two-dimensional (2D) high-contrast
grating (HCG) vertical-cavity surface-emitting laser (VCSEL) at 1080 nm. To the best of our …
grating (HCG) vertical-cavity surface-emitting laser (VCSEL) at 1080 nm. To the best of our …
Simultaneous solar rejection and infrared emission switching using an integrated dielectrics-on-VO2 metasurface
Passive infrared emittance switching can be achieved with a metal-to-insulating phase
transition material vanadium dioxide (VO2), but its non-transitioning bandgap results in high …
transition material vanadium dioxide (VO2), but its non-transitioning bandgap results in high …
Ultralow emittance thermal radiation barrier achieved by a high-contrast grating coating
Thermal radiative emission in vacuum is minimized using metal-backed flexible “space
blankets” that have a theoretical minimum infrared emittance of 0.03. However, their …
blankets” that have a theoretical minimum infrared emittance of 0.03. However, their …
Polarization independent enhancement of zeroth order diffracted second harmonic from multilayer gallium selenide on a silicon resonant metasurface
We demonstrate polarization-independent resonant-enhancement of second harmonic
generation (SHG) from multilayer Gallium Selenide (GaSe) on a silicon-based resonant …
generation (SHG) from multilayer Gallium Selenide (GaSe) on a silicon-based resonant …