23 citations · 42 across the 5 of their papers we have counts for
5 papers
Narrow-linewidth Fano microcavities with resonant subwavelength grating mirror
Trishala Mitra, Gurpreet Singh, Ali Akbar Darki +2
We report on the theoretical and experimental investigations of optical microcavities consisting in the plane-plane arrangement of a broadband high-reflectivity mirror and a suspen…
Polarization-independent optical spatial differentiation with a doubly-resonant one-dimensional guided-mode grating
Ali Akbar Darki, Søren Peder Madsen, Aurélien Dantan
We report on the design and experimental characterization of a suspended silicon nitride subwavelength grating possessing a polarization-independent guided-mode resonance at obliqu…
Collimation and finite-size effects in suspended resonant guided-mode gratings
Christian Toft-Vandborg, Alexios Parthenopoulos, Ali Akbar Darki +1
The optical transmission of resonant guided-mode gratings patterned on suspended silicon nitride thin films and illuminated at normal incidence with a Gaussian beam are investigate…
Profilometry and stress analysis of suspended nanostructured thin films
Ali Akbar Darki, Alexios Parthenopoulos, Jens Vinge Nygaard +1
The profile of suspended silicon nitride thin films patterned with one-dimensional subwavelength grating structures is investigated using Atomic Force Microscopy. We first show tha…
Optical spatial differentiation with suspended subwavelength gratings
Alexios Parthenopoulos, Ali Akbar Darki, Bjarke R. Jeppesen +1
We demonstrate first- and second-order spatial differentiation of an optical beam transverse profile using thin suspended subwavelength gratings. Highly reflective one-dimensional…