Publications

Photonic inverse design and, especially, topology optimization, enable dielectric cavities with deeply sub-diffraction mode volumes and high quality factors, thus offering a powerful platform for enhanced light-matter coupling. Here, we design and...

Metasurfaces became a technology not by making lenses thinner. They became one by concentrating in a single manufacturable layer what conventional optics achieves only with bulky assemblies: sorting light by polarization, spectrum and angle, and...

Nonlinear frequency conversion underpins important technologies such as telecommunications and quantum computation; however, weak nonlinearities and architectures that resist miniaturization currently limit devices’ efficiency and widespread adoption...

Optical singularities are positions in an electromagnetic field in which a parameter such as phase or polarization becomes undefined. These singularities confine light tightly and surround it with steep field gradients, properties now exploited in super...

Self-healing–-the ability of a structured beam to reconstruct its transverse profile after partial obstruction–-has been demonstrated for diffraction-free beams, where the recovery distance varies continuously with obstruction size. Here, we investigate...

Detecting trace amounts of molecules–-from explosives to biomarkers–-requires sensitive sensors. The characteristic vibrational and rotational modes of many such molecules lie in the THz range and act as molecular fingerprints, enabling label-free...

We consider the problem of reconstructing a \$\$H\backslashtimes W\backslashtimes 31\$\$H×W×31hyperspectral image from a \$\$H\backslashtimes W\$\$H×Wgrayscale snapshot measurement that is captured using only a single diffractive lens and a filterless...