We have a wide-ranging portfolio of research, all focused un using nanophotonics to control light and its propagation.
One of the exciting application areas for optical metasurfaces is holography. Through a clever arrangement of meta-atoms we use metasurfaces to display almost any computer-generated hologram, allowing the display of…
Epsilon-near-zero (ENZ) materials are materials that have a spectral region where the permittivity is below zero. This leads to unconventional optical behaviour, ranging from light propagation through arbitrary…
Electromagnetically induced transparency (EIT) uses an optical control beam to induce a narrow transparency window in a normally opaque medium. This narrow transparency window is associated with a strong slow light…
As part of the nanofab spin-off from the Photonics online meetup (POM) Dr Schulz gave a short tutorial on how to make a good plasmonic metasurface. The recorded presentation is now available as part of the “Flash Talk”…
The time-bandwidth relation that states that the longer a resonator stores energy, the narrower the bandwidth of supported frequencies and it is an intrinsic limitation to conventional resonators. However, this…
Photonic crystal devices have big potential for nonlinear optics, as they can confine light both spatially and temporally. However, a large number of nonlinear optical processes can occur in these systems, making it…
Metasurfaces based on epsilon-near-zero materials show very strong nonlinear responses and allow coupling of light to optical modes in the epsilon-near-zero thin film that are otherwise not accessible at normal…
Storing optical pulses using resonators is a key enabler of many applications, for example in optical communications, nonlinear optics or sensing. One of the ‘fundamental’ limitations of optical resonators is that they…
The ability to measure very precise alignments and displacements is a key requirement for many steps in semiconductor fabrication and manufacturing, for example, during lithography or wafer bonding. Using small…
Dicke superradiance is a phenomenon where multiple closely spaced emitters can enter a collective excited state with a much shorter lifetime than the excited states of the individual emitters. Together with…