An all-dielectric, subwavelength grated based metal-oxide nano-hair structure for optical
vortex beam generation has been presented in the paper. The nano-hair structure fabricated …

Novel all-dielectric beam shaping elements were developed based on guided mode
resonance (GMR) filters. This was achieved by spatially varying the duty cycle of a …

We designed, fabricated, and tested, polarization selective, graded-reflectivity resonant
filters; based on a radial-gradient spatially-distributed, guided-mode resonance device …

We present a method for fabricating high aspect ratio metal-oxide, sub-wavelength grating
structures. These “nano-hair” structures are composed of alumina cylindrical pillars, partially …

A wide range of applications currently utilize conventional optical elements to individually
transform the phase, polarization, and spectral transmission/reflection of the incident …

New and novel sensing schemes require optical functions with unconventional spatial light
distributions, as well as complex spectral functionality. Micro-optical elements have shown …

3D Meta-Optics are optical components that are based on the engineering of the
electromagnetic fields in 3D dielectric structures. The results of which will provide a class of …

Graded Reflectivity Guided Mode Resonant Filters Page 1 Azimuthally Varying Graded
Reflectivity Mirrors Zachary A. Roth, Menelaos K. Poutous, Pradeep Srinivasan, Aaron Pung …

Laser beam combining and beam shaping are two important areas with applications in
optical communications, high power lasers, and atmospheric propagation studies. In this …

GMRFs combine subwavelength gratings (SWGs) and slab waveguides to create a spectral
reflection filter that can have an arbitrarily small linewidth [1]. The reflectance or diffraction …