activity
20152022
most citedBand flips and bound-state transitions in leaky-mode photonic lattices

100 citations · 161 across the 9 of their papers we have counts for

collaborators

9 papers

physics.optics2022

Dual angular tunability of 2D infrared notch filters: Analysis, experiments, physics

Y. H. Ko, K. J. Lee, F. A. Simlan +2

Two-dimensional (2D) resonant gratings enable dual angular tunability by controlling the plane of incidence (POI) under linear polarization. If the POI is set to be perpendicular t…

physics.optics2022

Singular states of resonant nanophotonic lattices

Y. H. Ko, K. J. Lee, F. A. Simlan +1

Fundamental effects in nanophotonic resonance systems focused on singular states and their properties are presented. Strongly related to lattice geometry and material composition,…

physics.optics2020★ 35 cited

Perfectly-reflecting guided-mode-resonant photonic lattices possessing Mie modal memory

Yeong Hwan Ko, Nasrin Razmjooei, Hafez Hemmati +1

Resonant periodic nanostructures provide perfect reflection across small or large spectral bandwidths depending on the choice of materials and design parameters. This effect has be…

physics.optics2020

Applicability of the Rytov full effective-medium formalism to the physical description and design of resonant metasurfaces

Hafez Hemmati, Robert Magnusson

Periodic photonic lattices constitute a fundamental pillar of physics supporting a plethora of scientific concepts and applications. The advent of metamaterials and metastructures…

physics.optics2018★ 100 cited

Band flips and bound-state transitions in leaky-mode photonic lattices

Sun-Goo Lee, Robert Magnusson

Leaky-mode photonic lattices exhibit intricate resonance effects originating in quasi-guided lateral Bloch modes. Key spectral properties are associated with phase-matched modes at…

physics.optics2016★ 24 cited

Properties of wideband resonant reflectors under fully conical light incidence

Yeong Hwan Ko, Manoj Niraula, Kyu Jin Lee +1

Applying numerical modeling coupled with experiments, we investigate the properties of wideband resonant reflectors under fully conical light incidence. We show that the wave vecto…

physics.optics2016

New principle for unpolarized wideband reflectors

Manoj Niraula, Robert Magnusson

There is immense scientific interest in the properties of resonant thin films embroidered with periodic nanoscale features. This device class possesses considerable innovation pote…

physics.optics2015★ 2 cited

Single-periodic-film optical bandpass filter

Manoj Niraula, Jae Woong Yoon, Robert Magnusson

Resonant periodic surfaces and films enable new functionalities with wide applicability in practical optical systems. Their material sparsity, ease of fabrication, and minimal inte…

physics.optics2015

Wideband resonant polarizers made with ultra-sparse dielectric nanowire grids

Jae Woong Yoon, Kyu Jin Lee, Robert Magnusson

Polarizers are essential in diverse photonics applications including display [1], microscopy [2], polarimetric astrophysical observation [3], laser machining [4], and quantum infor…